Updated on 2024/09/25

Information

 

写真a

 
OUE SATOSHI
 
Organization
Faculty of Engineering Department of Materials Science and Engineering Assistant Professor
School of Engineering (Concurrent)
Title
Assistant Professor
Profile
一般的な防食技術であるめっきのうち「電気めっき」を研究している。 電解条件の変化による電析挙動の変化およびそこから生成される電析物の 組織や構造の変化を研究する。
External link

Degree

  • Master

Research Interests・Research Keywords

  • Research theme: Electroplating

    Keyword: Electroplating

    Research period: 1993.4

Awards

  • 第44回論文賞

    2019.3   資源・素材学会   Effect of Chloride Ions in Electrowinning Solutions on Zinc Deposition Behavior and Crystal Texture という論文において資源・素材学会表彰規定に定める論文賞の授与にふさわしいと認められた。

  • 論文賞

    2010.3   資源・素材学会   「亜鉛電解採取における高分子添加剤の経時劣化」という論文において,論文賞に匹敵すると賞された。

  • 奨励賞

    2009.3   資源・素材学会   本会は,表彰・奨学委員会の審議を経て,貴殿の「湿式銅,亜鉛精錬の電解工程におけるカソード表面性状に関する研究」が奨励賞にふさわしいものと認め,第34会奨励賞受賞者と決定しました。ここに,本会表彰規程第8条により資源・素材学会奨励賞を贈呈します

  • 論文賞

    2007.2   表面技術協会   Quantification og Adhesion Property of Electrodeposited Film - Adhesion of Ni Electrodeposited from Sulfamate Solution -

  • 資源・素材学会 第30回論文賞

    2005.3   資源・素材学会   「銅電解精製における高分子添加剤の影響」 〔資源と素材 第119巻10・11号,663?667(2003年)〕 九州大学 中野 博昭・大上 悟 スイス連邦工科大学ローザンヌ校 大貝 猛 東洋鋼鈑⑭ 泉 孝平 九州産業大学 秋山 徹也 九州大学 福島 久哲

Papers

  • 電析亜鉛と下地鉄の面方位関係に及ぼす鉄表面性状の影響 Reviewed

    #久保 文吾, @大上 悟, @二葉 敬士, @小林 亜暢, @後藤 靖人, @中野 博昭

    鉄と鋼   104 ( 6 )   322 - 330   2018.6

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

    : Zn deposition was performed galvanostatically at 1500 A/m2

    and a charge of 1.48×104
    C/m2
    onto both the high purity electrolytic iron and the

    cold rolled steel sheets in an agitated sulfate solution at 40 °C to investigate the effect of surface textures of Fe on the crystal orientation rela-
    tionship between Fe and Zn. Zn deposited on the high purity electrolytic iron with large grain size showed the orientation relationship of {110}

    Fe//{0001}Zn. However, with increasing the angle of inclination of {110} Fe plane from the surface of substrate, the deviation of orientation
    relationship of {110}Fe//{0001}Zn increased. This result suggests that the orientation relationship of {110}Fe//{0001}Zn is difficult to be
    completed in the middle of deposition with increasing the angle of inclination of {110} Fe plane from the surface of substrate, as a result, the
    epitaxial growth of Zn easily changes to random growth. On the other hand, Zn deposited on the cold rolled steel sheets with small grain size
    showed preferred orientation of {0001} regardless of orientation of Fe, which indicates that the orientation of deposited Zn is more affected
    by deposition overpotential than by the orientation of Fe substrate. Although the strain was introduced to the high purity electrolytic iron with
    sandblasting, the orientation relationship of {110}Fe//{0001}Zn hardly changed with sandblasting, showing that the strain of Fe substrate has
    scarcely effect on the orientation relationship between Fe and deposited Zn.

    DOI: https://www.jstage.jst.go.jp/article/tetsutohagane/104/6/104_TETSU-2017-097/_article/-char/ja/

  • Effect of Structure of Organic Additives on Electrodeposition Behavior of Zn from Alkaline Zincate Solution and Its Crystal Morphology

    Imatani Tomoki, Oue Satoshi, Taninouchi Yu-ki, Aoki Yasunori, Nakano Hiroaki

    Journal of the Japan Institute of Metals and Materials   88 ( 3 )   58 - 67   2024.3   ISSN:00214876 eISSN:18806880

     More details

    Language:Japanese   Publisher:The Japan Institute of Metals and Materials  

    <p>The effect of structure of organic additives on the electrodeposition behavior of Zn from alkaline zincate solution and its crystal morphology was investigated. Zn was electrodeposited on an Fe electrode at 20-1000 A·m<sup>−2</sup>, 2.4 × 10<sup>4</sup> C·m<sup>−2</sup>, 300 K from unagitated zincate solutions containing the various organic additives as a leveling agent. The suppression effect of additives on the charge transfer and diffusion of ZnO<sub>2</sub><sup>2−</sup> ions in Zn electrodeposition corresponded to the number of adsorption site per a straight chain molecule of polymer. The effect of polymer alone on the decrease in size of Zn platelets crystals was small, but the crystal size significantly decreased with coexistence of low molecular additive. The crystal size of deposited Zn decreased in spite of small suppression effect on Zn deposition, showing that the crystal size of deposited Zn doesn’t depend on the overpotential for deposition. With coexistence of low molecular additive with polymer, the crystal of deposited Zn was fine regardless of kind of polymer even though Zn deposited at the diffusion control of ZnO<sub>2</sub><sup>2−</sup> ions.</p>

    DOI: 10.2320/jinstmet.j2023018

    Scopus

    CiNii Research

  • Effect of Structure of Organic Additives on Electrodeposition Behavior of Zn from Alkaline Zincate Solution and Its Crystal Morphology

    Imatani Tomoki, Oue Satoshi, Taninouchi Yu-ki, Aoki Yasunori, Nakano Hiroaki

    MATERIALS TRANSACTIONS   advpub ( 0 )   1141 - 1151   2024   ISSN:13459678 eISSN:13475320

     More details

    Language:English   Publisher:The Japan Institute of Metals and Materials  

    <p>The effect of structure of organic additives on the electrodeposition behavior of Zn from alkaline zincate solution and its crystal morphology was investigated. Zn was electrodeposited on an Fe electrode at 20–1000 A·m<sup>−2</sup>, 2.4 × 10<sup>4</sup> C·m<sup>−2</sup>, 300 K from unagitated zincate solutions containing the various organic additives as a leveling agent. The suppression effect of additives on the charge transfer and diffusion of ZnO<sub>2</sub><sup>2−</sup> ions in Zn electrodeposition corresponded to the number of adsorption site per a straight chain molecule of polymer. The effect of polymer alone on the decrease in size of Zn platelets crystals was small, but the crystal size significantly decreased with coexistence of low molecular additive. The crystal size of deposited Zn decreased in spite of small suppression effect on Zn deposition, showing that the crystal size of deposited Zn doesn’t depend on the overpotential for deposition. With coexistence of low molecular additive with polymer, the crystal of deposited Zn was fine regardless of kind of polymer even though Zn deposited at the diffusion control of ZnO<sub>2</sub><sup>2−</sup> ions.</p><p> </p><p>This Paper was Originally Published in Japanese in J. Japan Inst. Met. Mater. <b>88</b> (2024) 58–67.</p>

    DOI: 10.2320/matertrans.mt-m2024070

    Web of Science

    Scopus

    CiNii Research

  • Effect of Structure of Organic Additives on Electrodeposition Behavior of Zn from Alkaline Zincate Solution and Its Crystal Morphology

    Imatani, T; Oue, S; Taninouchi, YK; Aoki, Y; Nakano, H

    JOURNAL OF THE JAPAN INSTITUTE OF METALS AND MATERIALS   88 ( 3 )   58 - 67   2024   ISSN:0021-4876 eISSN:1880-6880

  • Micro Structure and Corrosion Resistance of Zn Composites Films Produced by Pulse Electrolysis from a Insoluble Particle-free Solution Containing Zr Ions

    Toyokuni Sota, Oue Satoshi, Taninouchi Yu-ki, Nakano Hiroaki

    ISIJ International   63 ( 11 )   1908 - 1918   2023.11   ISSN:09151559 eISSN:13475460

     More details

    Language:English   Publisher:The Iron and Steel Institute of Japan  

    <p>The electrodeposition of an Zn–Zr compound composite is performed under pulsed and double-pulsed current conditions at 313 K in unagitated pH 2 sulfate solutions containing Zn<sup>2+</sup> and ZrO<sup>2+</sup> ions and polyethylene glycol. Under constant-current electrolysis at 5000 A·m<sup>−2</sup>, coarse granular partial deposits containing Zr compounds are observed. Under pulse electrolysis, such coarse deposits are observed rarely; however, both deposited films containing Zr compounds and exfoliated films are observed. On the contrary, in double-pulse electrolysis at high (5000 A·m<sup>−2</sup>) and low (500 A·m<sup>−2</sup>) current densities, coarse deposits are not observed while fine-particle deposits containing Zr compounds are observed. In double-pulse electrolysis at low current densities, the rate of hydrogen evolution decreases and Zn is deposited without the codeposition of Zr compounds; therefore, the continuous hydrogen evolution is suspended in some areas. That is, the area of hydrogen evolution appears to be random. Although Zr compounds are usually concentrated at the upper regions of the deposited films, regardless of the electrolysis method, it is found to have been codeposited even in the inner regions under double-pulse electrolysis. The corrosion current density in 3 mass% NaCl solution is the smallest for the films produced by double-pulse electrolysis, when comparing with the films obtained by pulse electrolysis and constant-current electrolysis. This can be attributed to the suppression of the reduction reaction of dissolved oxygen.</p>

    DOI: 10.2355/isijinternational.isijint-2023-270

    Web of Science

    Scopus

    CiNii Research

  • Corrosion Resistance of Zn–Ni Alloy Films Electroplated in Alkaline Zincate Solutions Containing a Brightener Reviewed International journal

    #Sung Hwa BAE, @Satoshi OUE, @Yu-ki TANINOUCHI, @Injoon SON and @Hiroaki NAKANO

    ISIJ International   63 ( 11 )   1897 - 1907   2023.11

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

    Zn–Ni alloys were electroplated on a Fe plate with a thickness of 40 μm at 500 A·m−2 and 293 K in unagitated zincate solutions. The reaction product of epichlorohydrin and imidazole (IME) was added to the solution as a brightener at concentrations of 0–5 mL dm–3. The corrosion resistance of the obtained Zn–Ni alloy films was investigated from the polarization curve in 3 mass% NaCl solution before and after the corrosion treatment (formation of corrosion products) for 48 hours. Before the corrosion treatment, the corrosion current density of plated films rarely changed, regardless of the addition of IME into the zincate solution, because the reduction reaction of dissolved oxygen rarely changed. However, in films plated from the solution containing IME, the anode reaction was suppressed, and the corrosion potential shifted toward the noble direction. The suppression of the anode reaction with an addition of IME into the plating solution is attributed to the increase in γ-phase in the plated films. After the corrosion treatment, Zn chlo- ride hydroxide of the corrosion product uniformly formed on the surface when increasing the concentra- tion of IME. The reduction reaction of dissolved oxygen was suppressed by increasing the concentration of IME, resulting in a decrease in corrosion current density.

    DOI: https://doi.org/10.2355/isijinternational.ISIJINT-2023-236

  • Electrodeposition Behavior of Zn–Ni Alloy from Alkaline Zincate Solutions Containing Various Brighteners and its Microstructure

    Murakami Wataru, Oue Satoshi, Taninouchi Yu-ki, Akamatsu Shinya, Nakano Hiroaki

    ISIJ International   63 ( 8 )   1394 - 1404   2023.8   ISSN:09151559 eISSN:13475460

     More details

    Language:English   Publisher:The Iron and Steel Institute of Japan  

    <p>The effect of brighteners on the deposition behavior of Zn–Ni alloys and their microstructure was investigated. Zn–Ni alloys were electrodeposited on Cu electrode at 10–5000 A·m<sup>−2</sup>, 10<sup>5</sup> C·m<sup>−2</sup>, and 308 K. Although the degree of suppression of hydrogen evolution differed depending on the kind of brightener, the transition current density at which the deposition behavior shifted from normal to anomalous was practically the same in all the solutions containing brighteners. The current efficiency of the alloy deposition significantly decreased with the addition of brighteners, which had a suppression effect on the Zn deposition. Considering that the brighteners suppressed the Ni deposition more than the Zn deposition, the Ni content in the deposited films decreased with the addition of brighteners. When the brightener of a straight-chain polymer comprising a quaternary ammonium cation (PQ) that can suppress the diffusion of ZnO<sub>2</sub><sup>2−</sup> and Ni ions in a solution was added, the Ni content in the deposited films increased with increasing current density in a high-current-density region. This was attributed to the fact that Zn, which was preferentially deposited over Ni earlier, reached the diffusion limitation of ZnO<sub>2</sub><sup>2−</sup>, and Ni deposition did not reach the diffusion-limited current density. When PQ and a quaternary ammonium salt with a benzene ring were added to the solution, the films obtained at the diffusion-limited current density of ZnO<sub>2</sub><sup>2−</sup> exhibited smooth surfaces comprising fine crystals. With the addition of brighteners to increase the overpotential for deposition, the <i>γ</i>-phase (the intermetallic compound of Ni<sub>2</sub>Zn<sub>11</sub>) of the deposited films easily formed.</p>

    DOI: 10.2355/isijinternational.isijint-2023-103

    Web of Science

    Scopus

    CiNii Research

  • Micro Structure and Corrosion Resistance of Zn Composites Films Produced by Pulse Electrolysis from a Insoluble Particle-free Solution Containing Zr Ions

    Toyokuni Sota, Oue Satoshi, Taninouchi Yu-ki, Nakano Hiroaki

    Tetsu-to-Hagane   109 ( 8 )   684 - 694   2023.8   ISSN:00211575 eISSN:18832954

     More details

    Language:Japanese   Publisher:The Iron and Steel Institute of Japan  

    <p>Electrodeposition of Zn–Zr compound composite was performed under pulsed and double pulsed current conditions at 313 K on unagitated pH 2 sulfate solutions containing Zn<sup>2+</sup>, ZrO<sup>2+</sup> ions and a polyethylene glycol (PEG). At constant current density of 5000 A∙m<sup>−2</sup>, the coarse granular deposits containing Zr compound existed partially. Meanwhile, in pulse electrolysis, the coarse deposits were rarely seen and the both areas of deposited films containing Zr compound and its films being exfoliated were observed. On the contrary, in double pulse electrolysis of high current density (5000 A∙m<sup>−2</sup>) and low current density (500 A∙m<sup>−2</sup>), the coarse deposits were not observed and the fine particle deposits containing Zr compound were present. In double pulse electrolysis, since at low current density, the rate of hydrogen evolution decreases and Zn deposits without co-deposition of Zr compound, the continuous hydrogen evolution is suspended in some areas and the area of hydrogen evolution seems to become random. Although Zr compound concentrated at upper area of deposited films regardless of electrolytic method, it codeposited even at inner part with double pulse electrolysis. The corrosion current density in 3 mass% NaCl solution was the smallest for the films produced by double pulse electrolysis, comparing with films obtained by pulse electrolysis and constant current electrolysis. This is attributed to reduction reaction of dissolved oxygen being suppressed.</p>

    DOI: 10.2355/tetsutohagane.tetsu-2023-013

    Web of Science

    Scopus

    CiNii Research

  • Zrイオンを含む非懸濁溶液からパルス電解法により作製したZn系複合電析膜の微細構造と耐食性 Reviewed

    #豊國 想太, @大上 悟, @谷ノ内 勇樹, @中野 博昭

    鉄と鋼   109 ( 8 )   684 - 694   2023.8

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

    Electrodeposition of Zn–Zr compound composite was performed under pulsed and double pulsed current conditions at 313 K on unagitated pH 2 sulfate solutions containing Zn2+, ZrO2+ ions and a polyethylene glycol (PEG). At constant current density of 5000 A∙m−2 , the coarse granular deposits containing Zr compound existed partially. Meanwhile, in pulse electrolysis, the coarse deposits were rarely seen and the both areas of deposited films containing Zr compound and its films being exfoliated were observed. On the contrary, in double pulse electrolysis of high current density (5000 A∙m−2) and low current density (500 A∙m−2), the coarse deposits were not observed and the fine particle deposits containing Zr compound were present. In double pulse electrolysis, since at low current density, the rate of hydrogen evolution decreases and Zn deposits without co-deposition of Zr compound, the continuous hydrogen evolution is suspended in some areas and the area of hydrogen evolution seems to become random. Although Zr com- pound concentrated at upper area of deposited films regardless of electrolytic method, it codeposited even at inner part with double pulse electrolysis. The corrosion current density in 3 mass% NaCl solution was the smallest for the films produced by double pulse electrolysis, comparing with films obtained by pulse electrolysis and constant current electrolysis. This is attributed to reduction reaction of dissolved oxygen being suppressed.

    DOI: https://doi.org/10.2355/tetsutohagane.TETSU-2023-013

  • Corrosion Resistance of Zn-Ni Alloy FilmsElectroplated from Alkaline Zincate SolutionContaining Brightener Reviewed

    #Sung Hwa BAE, @Satoshi OUE, @Yu-ki TANINOUCHI, @Injoon SON, @Hiroaki NAKANO

    鉄と鋼   109 ( 4 )   289 - 300   2023.4

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

    Zn–Ni alloys were electroplated on an Fe plate with thicknesses of 40 μm at 500 A·m−2 and 293 K in un- agitated zincate solutions. The reaction product of epichlorohydrin and imidazole (IME) was added in the solution as a brightener at the concentration of 0-5 ml/dm−3. The corrosion resistance of the obtained Zn– Ni alloys films was investigated from the polarization curve in 3 mass% NaCl solution before and after the corrosion treatment (formation of corrosion products) in NaCl solution for 48 h. Before the corrosion treatment, the corrosion current density of plated films rarely changed regardless of addition of IME into the zincate solution because the reduction reaction of dissolved oxygen rarely changed. However, in films plated from the solution containing IME, the anode reaction was suppressed and the corrosion potential shifted to noble direction. The suppression of anode reaction with an addition of IME in plating solution is attributed to the increase in γ-phase in plated films. On the other hand, after the corrosion treatment, the morphology of Zn chloride hydroxide of corrosion product was uniformly formed on the surface with increasing the concentration of IME.
    The reduction reaction of dissolved oxygen was suppressed with increasing the concentration of IME, resulting in decrease in corrosion current density.

    DOI: https://doi.org/10.2355/tetsutohagane.TETSU-2022-110

  • Electrodeposition Behavior of Zn-Ni Alloy from Alkaline Zincate Solutions Containing Various Brighteners and its Microstructure Reviewed

    #Wataru MURAKAMI, @Satoshi OUE, @Yu-ki TANINOUCHI, @Shinya Akamatsu, @Hiroaki NAKANO

    鉄と鋼   109 ( 4 )   277 - 288   2023.4

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

    The effect of brighteners on the deposition behavior of Zn–Ni alloys ant its microstructure was investigat- ed. Zn–Ni alloys were electrodeposited on Cu electrode at 10–5000 A·m−2, 105 C·m−2, 308 K in unagitated zincate solutions containing various brighteners. Although the degree of suppression of hydrogen evolu- tion was different depending on the kind of brightener, the transition current density at which the depo- sition behavior shifted from normal to anomalous was almost same in solutions containing brighteners. The current efficiency for alloy deposition significantly decreased with an addition of brighteners which had suppression effect on the Zn deposition. Since the brighteners more suppressed the Ni deposition than Zn deposition, the Ni content in deposited films decreased with an addition of brighteners. When the brightener of a straight-chain polymer composed of a quaternary ammonium cation (PQ) which can suppress the diffusion of ZnO22− and Ni ions in solution was added, the Ni content in deposited films in- creased with increasing current density at high current density region. This is attributed to that Zn which is preferentially deposited over Ni earlier reached the diffusion limitation of ZnO22− ions and Ni deposi- tion didn’t reach the diffusion-limited current density. When both PQ and a quaternary ammonium salt with a benzene ring were added in solution, the films obtained at the diffusion-limited current density of ZnO22− ions exhibited the smooth surfaces composed of fine crystals. With an addition of brighteners to increase the overpotential for deposition, the γ-phase (intermetallic compound of Ni2Zn11) of the deposit- ed films was formed easily.

    DOI: https://doi.org/10.2355/tetsutohagane.TETSU-2022-110

  • Erratum: Effect of Impurity Ions and Additives in Solution of Copper Electrorefining on the Passivation Behavior of Low-Grade Copper Anode

    Mori Kohei, Yamakawa Yuta, Oue Satoshi, Taninouchi Yu-ki, Nakano Hiroaki

    Journal of the Japan Institute of Metals and Materials   87 ( 2 )   66 - 66   2023.2   ISSN:00214876 eISSN:18806880

     More details

    Language:Japanese   Publisher:The Japan Institute of Metals and Materials  

    DOI: 10.2320/jinstmet.erj202202

    CiNii Research

  • Effect of Impurity Ions and Additives in Solution of Copper Electrorefining on the Passivation Behavior of Low-Grade Copper Anode

    Mori Kohei, Yamakawa Yuta, Oue Satoshi, Taninouchi Yu-ki, Nakano Hiroaki

    MATERIALS TRANSACTIONS   64 ( 1 )   242 - 251   2023.1   ISSN:13459678 eISSN:13475320

     More details

    Language:English   Publisher:The Japan Institute of Metals and Materials  

    <p>Cu electrorefining using a low-grade copper anode is desirable from the standpoint of electric power savings. Cu electrolysis was carried out in an unagitated sulfate solution with a low-grade copper anode, and the effect of impurity ions and additives in the solution on the passivation of the anode was investigated. The time when anode passivation firstly occurs shortened significantly in a solution containing 0.596 mol·dm<sup>−3</sup> of Ni<sup>2+</sup> ions as impurity and shortened somewhat in a solution containing As<sup>5+</sup>(0.053 mol·dm<sup>−3</sup>) or Bi<sup>3+</sup>(0.0005 mol·dm<sup>−3</sup>) ions. Sn<sup>2+</sup>(0.0004 mol·dm<sup>−3</sup>) and As<sup>3+</sup>(0.053 mol·dm<sup>−3</sup>) ions slightly decreased the time to passivation, but Sb<sup>3+</sup>(0.004 mol·dm<sup>−3</sup>) ions did not. The viscosity coefficient of the solution increased when the 0.596 mol·dm<sup>−3</sup> of Ni<sup>2+</sup> ions were added to the solution, while the diffusion coefficient of Cu<sup>2+</sup> ions decreased. The compound of the As–Sb–O or As–Bi–O system was formed in anode slime when the As<sup>5+</sup>(0.053 mol·dm<sup>−3</sup>) or Bi<sup>3+</sup>(0.0005 mol·dm<sup>−3</sup>) ions were added to the solution, which seemed to increase the compactness of slime. The time to passivation was slightly longer in thiourea-free solution but shortened when the concentration of thiourea was increased from 0.525 to 2.24 mmol·dm<sup>−3</sup>. The time to passivation was constant in solutions containing 0 to 1.13 mmol·dm<sup>−3</sup> of Cl<sup>−</sup> ions, but significantly decreased as the concentration of Cl<sup>−</sup> ions increased above 1.13 mmol·dm<sup>−3</sup>. Cl<sup>−</sup> ions formed Cu–Cl at the upper area of anode slime, which increased the compactness of slime and promoted the passivation.</p><p> </p><p>This Paper was Originally Published in Japanese in J. Japan Inst. Metals <b>86</b> (2022) 97–106.</p>

    DOI: 10.2320/matertrans.mt-m2022087

    Scopus

    CiNii Research

  • Effect of Impurity Ions and Additives in Solution of Copper Electrorefining on the Passivation Behavior of Low-Grade Copper Anode Reviewed International journal

    #Kohei Mori, #Yuta Yamakawa , @Satoshi Oue , @Yu-ki Taninouchi and @Hiroaki Nakano

    Materials Transactions   64 ( 1 )   242 - 251   2023.1

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

    Cu electrorefining using a low-grade copper anode is desirable from the standpoint of electric power savings. Cu electrolysis was carried out in an unagitated sulfate solution with a low-grade copper anode, and the effect of impurity ions and additives in the solution on the passivation of the anode was investigated. The time when anode passivation firstly occurs shortened significantly in a solution containing 0.596 mol·dm13 of Ni2+ ions as impurity and shortened somewhat in a solution containing As5+(0.053 mol·dm13) or Bi3+(0.0005 mol·dm13) ions. Sn2+(0.0004 mol·dm13) and As3+(0.053 mol·dm13) ions slightly decreased the time to passivation, but Sb3+(0.004 mol·dm13) ions did not. The viscosity coefficient of the solution increased when the 0.596mol·dm13 of Ni2+ ions were added to the solution, while the diffusion coefficient of Cu2+ ions decreased. The compound of the As­Sb­O or As­Bi­O system was formed in anode slime when the As5+(0.053 mol·dm13) or Bi3+(0.0005 mol·dm13) ions were added to the solution, which seemed to increase the compactness of slime. The time to passivation was slightly longer in thiourea-free solution but shortened when the concentration of thiourea was increased from 0.525 to 2.24 mmol·dm13. The time to passivation was constant in solutions containing 0 to 1.13 mmol·dm13 of Cl1 ions, but significantly decreased as the concentration of Cl1 ions increased above 1.13 mmol·dm13. Cl1 ions formed Cu­Cl at the upper area of anode slime, which increased the compactness of slime and promoted the passivation.

    DOI: doi:10.2320/matertrans.MT-M2022087

  • Effect of Impurity Ions and Additives in Solution of Copper Electrorefining on the Passivation Behavior of Low-Grade Copper Anode*1

    Mori, K; Yamakawa, Y; Oue, S; Taninouchi, YK; Nakano, H

    MATERIALS TRANSACTIONS   64 ( 1 )   242 - 251   2023   ISSN:1345-9678 eISSN:1347-5320

  • Electrodeposition Behavior of Zn-Ni Alloy from Alkaline Zincate Solutions Containing Various Brighteners and its Microstructure

    Murakami Wataru, Oue Satoshi, Taninouchi Yu-ki, Akamatsu Shinya, Nakano Hiroaki

    Tetsu-to-Hagane   109 ( 4 )   277 - 288   2023   ISSN:00211575 eISSN:18832954

     More details

    Language:Japanese   Publisher:The Iron and Steel Institute of Japan  

    <p>The effect of brighteners on the deposition behavior of Zn–Ni alloys ant its microstructure was investigated. Zn–Ni alloys were electrodeposited on Cu electrode at 10–5000 A·m<sup>−2</sup>, 10<sup>5</sup> C·m<sup>−2</sup>, 308 K in unagitated zincate solutions containing various brighteners. Although the degree of suppression of hydrogen evolution was different depending on the kind of brightener, the transition current density at which the deposition behavior shifted from normal to anomalous was almost same in solutions containing brighteners. The current efficiency for alloy deposition significantly decreased with an addition of brighteners which had suppression effect on the Zn deposition. Since the brighteners more suppressed the Ni deposition than Zn deposition, the Ni content in deposited films decreased with an addition of brighteners. When the brightener of a straight-chain polymer composed of a quaternary ammonium cation (PQ) which can suppress the diffusion of ZnO<sub>2</sub><sup>2−</sup> and Ni ions in solution was added, the Ni content in deposited films increased with increasing current density at high current density region. This is attributed to that Zn which is preferentially deposited over Ni earlier reached the diffusion limitation of ZnO<sub>2</sub><sup>2−</sup> ions and Ni deposition didn’t reach the diffusion-limited current density. When both PQ and a quaternary ammonium salt with a benzene ring were added in solution, the films obtained at the diffusion-limited current density of ZnO<sub>2</sub><sup>2−</sup> ions exhibited the smooth surfaces composed of fine crystals. With an addition of brighteners to increase the overpotential for deposition, the γ-phase (intermetallic compound of Ni<sub>2</sub>Zn<sub>11</sub>) of the deposited films was formed easily.</p>

    DOI: 10.2355/tetsutohagane.tetsu-2022-104

    Web of Science

    Scopus

    CiNii Research

  • Corrosion Resistance of Zn-Ni Alloy Films Electroplated from Alkaline Zincate Solution Containing Brightener

    Bae Sung Hwa, Oue Satoshi, Taninouchi Yu-ki, Son Injoon, Nakano Hiroaki

    Tetsu-to-Hagane   109 ( 4 )   289 - 300   2023   ISSN:00211575 eISSN:18832954

     More details

    Language:Japanese   Publisher:The Iron and Steel Institute of Japan  

    <p>Zn–Ni alloys were electroplated on an Fe plate with thicknesses of 40 μm at 500 A·m<sup>−2</sup> and 293 K in unagitated zincate solutions. The reaction product of epichlorohydrin and imidazole (IME) was added in the solution as a brightener at the concentration of 0-5 ml/dm<sup>−3</sup>. The corrosion resistance of the obtained Zn–Ni alloys films was investigated from the polarization curve in 3 mass% NaCl solution before and after the corrosion treatment (formation of corrosion products) in NaCl solution for 48 h. Before the corrosion treatment, the corrosion current density of plated films rarely changed regardless of addition of IME into the zincate solution because the reduction reaction of dissolved oxygen rarely changed. However, in films plated from the solution containing IME, the anode reaction was suppressed and the corrosion potential shifted to noble direction. The suppression of anode reaction with an addition of IME in plating solution is attributed to the increase in γ-phase in plated films. On the other hand, after the corrosion treatment, the morphology of Zn chloride hydroxide of corrosion product was uniformly formed on the surface with increasing the concentration of IME. The reduction reaction of dissolved oxygen was suppressed with increasing the concentration of IME, resulting in decrease in corrosion current density.</p>

    DOI: 10.2355/tetsutohagane.tetsu-2022-110

    Web of Science

    Scopus

    CiNii Research

  • Synergistic Effect of Brightener and Solution Temperature on the Electrodeposition Behavior of Zn–Ni Alloy from Alkaline Zincate Solution

    Bae Sung Hwa, Oue Satoshi, Taninouchi Yu-ki, Son Injoon, Nakano Hiroaki

    ISIJ International   62 ( 9 )   1918 - 1929   2022.9   ISSN:09151559 eISSN:13475460

     More details

    Language:English   Publisher:The Iron and Steel Institute of Japan  

    <p>Zn–Ni alloys were electrodeposited on a Cu electrode at 10–5000 A·m<sup>−2</sup>, 5 × 10<sup>4</sup> C·m<sup>−2</sup>, 293 K, 313 K, and 333 K in unagitated zincate solutions containing the reaction product of epichlorohydrin and imidazole (IME) as a brightener. The synergistic effect of IEM and solution temperature on the deposition behavior of Zn–Ni alloys was investigated. The transition current density at which the deposition behavior shifted from normal to anomalous one decreased with IME at 293 K, but did not change regardless of IME addition at 313 K and 333 K. The suppression effect of IME on the Zn and Ni depositions during alloy deposition was observed at 293 K while at 313 K and 333 K, the suppression effect decreased on the Zn deposition but was maintained on the Ni deposition. Therefore, Ni content in deposits significantly decreased with IME as the temperature increased. The current efficiency of Zn deposition significantly decreased with IME at 293 K, with a small degree of decrease at 313 K and 333 K. The C content in deposits was the highest at 293 K and decreased with increasing solution temperature, indicating that the adsorption ability of IME on the cathode decreases with the increasing temperature. As a result, the suppression effect of IME on the Zn deposition decreases with the increasing temperature. The gloss of deposited films was the highest at 293 K, attributed to the IME adsorption ability being large at 293 K and deposited films with fine crystals becoming smooth.</p>

    DOI: 10.2355/isijinternational.isijint-2022-160

    Web of Science

    Scopus

    CiNii Research

  • Synergistic Effect of Brightener and Solution Temperature on the Electrodeposition Behavior of Zn–Ni Alloy from Alkaline Zincate Solution Reviewed International journal

    #Sung Hwa BAE, @Satoshi OUE, @Yu-ki TANINOUCHI, @Injoon SON, @Hiroaki NAKANO

    ISIJ International   62 ( 9 )   1918 - 1929   2022.9

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

    Zn–Ni alloys were electrodeposited on a Cu electrode at 10–5 000 A·m−2, 5 × 104 C·m−2, 293 K, 313 K, and 333 K in unagitated zincate solutions containing the reaction product of epichlorohydrin and imid- azole (IME) as a brightener. The synergistic effect of IEM and solution temperature on the deposition behavior of Zn–Ni alloys was investigated. The transition current density at which the deposition behavior shifted from normal to anomalous one decreased with IME at 293 K, but did not change regardless of IME addition at 313 K and 333 K. The suppression effect of IME on the Zn and Ni depositions during alloy deposition was observed at 293 K while at 313 K and 333 K, the suppression effect decreased on the Zn deposition but was maintained on the Ni deposition. Therefore, Ni content in deposits significantly decreased with IME as the temperature increased. The current efficiency of Zn deposition significantly decreased with IME at 293 K, with a small degree of decrease at 313 K and 333 K. The C content in deposits was the highest at 293 K and decreased with increasing solution temperature, indicating that the adsorption ability of IME on the cathode decreases with the increasing temperature. As a result, the sup- pression effect of IME on the Zn deposition decreases with the increasing temperature. The gloss of deposited films was the highest at 293 K, attributed to the IME adsorption ability being large at 293 K and deposited films with fine crystals becoming smooth.

    DOI: https://doi.org/10.2355/isijinternational.ISIJINT-2022-160

  • Effect of Solution Temperature on Electrodeposition Behavior of Zn–Ni Alloy from Alkaline Zincate Solution

    Bae Sung Hwa, Oue Satoshi, Taninouchi Yu-ki, Son Injoon, Nakano Hiroaki

    ISIJ International   62 ( 7 )   1522 - 1531   2022.7   ISSN:09151559 eISSN:13475460

     More details

    Language:English   Publisher:The Iron and Steel Institute of Japan  

    <p>Zn–Ni alloys were electrodeposited on a Cu electrode at 10–500 A·m<sup>−2</sup> and 5 × 10<sup>4</sup> C·m<sup>−2</sup> in an unagitated zincate solution at 293, 313, and 333 K. The effect of solution temperature on the electrodeposition behavior of Zn–Ni alloys from alkaline zincate solutions was investigated. The transition current density at which the deposition behavior shifted from a normal to an anomalous co-deposition was almost identical at 293 and 313 K but increased at 333 K, due to enhanced H<sub>2</sub> evolution and Ni deposition at 333 K. The current efficiency for alloy deposition increased with solution temperature in both the normal (10–50 A·m<sup>−2</sup>) and anomalous (500 A·m<sup>−2</sup>) co-deposition regions. In the normal co-deposition region, Ni deposition and H<sub>2</sub> evolution mainly occurred, and the current efficiency increased with solution temperature due to the stronger promotional effect of increase in solution temperature on Ni deposition. In the anomalous co-deposition region at 500 A·m<sup>−2</sup>, Zn deposition and H<sub>2</sub> evolution mainly occurred, and Zn deposition appeared to proceed based on a mixed rate-determining process comprising the charge transfer and diffusion of Zn ions. The current efficiency increased with solution temperature due to the acceleration of the Zn ions diffusion. The Ni content in the deposited films increased with the solution temperature at all the current densities, since Ni deposition was accelerated to a greater degree than Zn deposition by increasing the solution temperature in the region where the charge transfer process was rate-limiting. The <i>γ</i>-phase of the deposited films also increased with increasing solution temperature.</p>

    DOI: 10.2355/isijinternational.isijint-2022-076

    Web of Science

    Scopus

    CiNii Research

  • Effect of Impurity Ions and Additives in Solution of Copper Electrorefining on the Passivation Behavior of Low-Grade Copper Anode

    Mori Kohei, Yamakawa Yuta, Oue Satoshi, Taninouchi Yu-ki, Nakano Hiroaki

    Journal of the Japan Institute of Metals and Materials   86 ( 6 )   97 - 106   2022.6   ISSN:00214876 eISSN:18806880

     More details

    Language:Japanese   Publisher:The Japan Institute of Metals and Materials  

    <p>The Cu electrorefining using low-grade copper anode is desired from the view point of reduction of electric power. Cu electrolysis was performed using a low-grade copper anode in an unagitated sulfate solution, and the effect of impurity ions and additives in solution on the passivation of anode was investigated. The time when anode passivation firstly occurs shortened significantly in solution containing 0.596 mol·dm<sup>−3</sup> of Ni<sup>2+</sup> ions as impurity, and shortened somewhat in solution containing As<sup>5+</sup>(0.053 mol·dm<sup>−3</sup>) or Bi<sup>3+</sup>(0.0005 mol·dm<sup>−3</sup>) ions. Sn<sup>2+</sup>(0.0004 mol·dm<sup>−3</sup>) and As<sup>3+</sup>(0.053 mol·dm<sup>−3</sup>) ions slightly decreased the time to passivation, but Sb<sup>3+</sup> (0.004 mol·dm<sup>−3</sup>) ions rarely decreased the time. When the 0.596 mol·dm<sup>−3</sup> of Ni<sup>2+</sup> ions were added in solution, the viscosity coefficient of solution increased and the diffusion coefficient of Cu<sup>2+</sup> ions decreased. When the As<sup>5+</sup>(0.053 mol·dm<sup>−3</sup>) or Bi<sup>3+</sup>(0.0005 mol·dm<sup>−3</sup>) ions were added in solution, the compound of As-Sb-O or As-Bi-O system was formed in anode slime, which seemed to increase the compactness of slime. The time to passivation was slightly longer in thiourea-free solution, but shortened with increasing the concentration of thiourea from 0.525 to 2.24 mmol·dm<sup>−3</sup>. In the solutions containing 0 to 1.13 mmol·dm<sup>−3</sup> of Cl<sup>−</sup> ions, the time to passivation was constant, but significantly shortened with increasing the concentration of Cl<sup>−</sup> ions at the region above 1.13 mmol·dm<sup>−3</sup>. Cl<sup>−</sup> ions formed CuCl at the upper area of anode slime, as a result, increased the compactness of slime and promoted the passivation.</p>

    DOI: 10.2320/jinstmet.j2022001

    Web of Science

    Scopus

    CiNii Research

  • ジンケート浴からの Zn-Ni 合金電析挙動に及ぼす 光沢剤と浴温の相乗作用 Reviewed

    #裵 聖和, @大上 悟, @谷ノ内 勇樹, @孫 仁俊, @中野 博昭

    鉄と鋼   108 ( 4 )   268 - 281   2022.4

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

    Zn–Ni alloys were electrodeposited on a Cu electrode at 10–5000 A·m−2, 5 × 104 C·m−2, and 293, 313 and 333 K in unagitated zincate solutions containing the reaction product of epichlorohydrin and imidazole (IME) as a brightener. The synergistic effect of IEM and solution temperature on the deposition behavior of Zn–Ni alloy was investigated. The transition current density, at which the deposition behavior shifted from the normal type to anomalous ones, decreased with IME at 293 K, but didn’t change regardless of IME addition at 313 and 333 K. The suppression effect of IME on the Zn and Ni depositions during alloy deposition was observed at 293 K, while at 313 and 333 K, the suppression effect was decreased on the Zn deposition but was maintained on the Ni deposition. Therefore, Ni content in deposits significantly decreased with IME as temperature increased. The current efficiency for Zn deposition significantly decreased with IME at 293 K, while the degree of decrease was small at 313 and 333 K. The content of C in deposits was highest at 293 K, and decreased with increasing solution temperature, indicating that the adsorption ability of IME on the cathode decreases with increasing temperature. As a result, the sup- pression effect of IME on the Zn deposition seems to decrease with increasing temperature. The gloss of deposited films was highest at 293 K.
    This is attributed to adsorption ability of IME being large at 293 K and depos- ited films with fine crystals becoming smooth.

    DOI: https://doi.org/10.2355/tetsutohagane.TETSU-2021-105

  • アルカリジンケート浴からのZn-Ni合金電析挙動に及ぼす浴温の影響 Reviewed

    #裵 聖和, @大上 悟, @谷ノ内 勇樹, @孫 仁俊, @中野 博昭

    鉄と鋼   108 ( 2 )   120 - 130   2022.2

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

    Zn電析は古くから鋼板の腐食防止のために使用されてきたが,電析膜の耐食性を更に向上させるためにZn合金電析が行われている1–8)。合金電析の中でもZn-Ni合金は,熱安定性と耐食性に優れており,自動車部品,建築資材など様々な産業分野で適用されている。Zn-Ni合金電析は,通常,硫酸塩浴,塩化物浴から行われるが,小物部品等に対する均一電着性の観点からは,ジンケート浴からの方が望ましい。硫酸塩浴,塩化物浴からのZn-Ni合金電析については,従来より多数の研究が行われており,実用的な電流密度の領域では,電気化学的に卑なZnが貴なNiより優先析出する変則型共析挙動を示すことが知られている9–15)。ジンケート浴からのZn-Ni合金の電析については,電析膜中のNi含有率に及ぼす電流密度16–19),全金属塩濃度20),撹拌19),Ni錯化剤濃度19),浴組成の影響17,19–21),合金電析の電流効率に及ぼす電流密度18,20)の影響が報告されているが硫酸塩浴,塩化物浴からの場合に比べて電析機構22)に関する研究例が少ない。
    一方,浴温は,電析過電圧,均一電着性,金属塩の溶解度,浴導電率等に影響を及ぼす23)。浴温を高くすると,浴の導電率が増加する。また,イオンの拡散係数および金属塩の溶解度が増大するため金属析出の拡散限界電流密度を高くすることが出来る。浴温を低下させると,電析過電圧が増加することにより電析物の結晶粒が微細化し,また均一電着性が改善される。このように,浴温は電析において極めて重要な因子であるが,ジンケート浴からのZn-Ni合金の電析挙動に及ぼす浴温の影響についてはほとんど報告されていない19)。そこで,本研究では,ジンケート浴からのZn-Ni合金電析挙動に及ぼす浴温の影響をZn,Ni析出および水素発生の部分分極曲線に基づき考察した。

    DOI: https://www.jstage.jst.go.jp/article/tetsutohagane/108/2/108_TETSU-2021-092/_article/-char/ja/

  • Effect of Solution Temperature on Electrodeposition Behavior of Zn-Ni Alloy from Alkaline Zincate Solution

    Bae Sung Hwa, Oue Satoshi, Taninouchi Yu-ki, Son Injoon, Nakano Hiroaki

    Tetsu-to-Hagane   108 ( 2 )   120 - 130   2022   ISSN:00211575 eISSN:18832954

     More details

    Language:Japanese   Publisher:The Iron and Steel Institute of Japan  

    <p>Zn–Ni alloys were electrodeposited on a Cu electrode at 10–5000 A·m<sup>−2</sup> and 5 × 10<sup>4</sup> C·m<sup>−2</sup> in an unagitated zincate solution at 293, 313, and 333 K. The effect of solution temperature on the electrodeposition behavior of Zn–Ni alloys from alkaline zincate solutions was investigated. The transition current density at which the deposition behavior shifted from a normal to anomalous codeposition was almost similar at 293 and 313 K but increased at 333 K. The transition current density increased at 333 K due to the enhanced hydrogen evolution and Ni deposition. The current efficiency for alloy deposition increased with solution temperature in both normal (10–50 A·m<sup>−2</sup>) and anomalous (500 A·m<sup>−2</sup>) codepositions region. In a normal codeposition region, Ni deposition and hydrogen evolution mainly occurred, and the current efficiency increased with solution temperature due to a larger promotion effect of increase in solution temperature on the Ni deposition. In an anomalous codeposition region at 500 A·m<sup>−2</sup>, Zn deposition and hydrogen evolution mainly occurred, and Zn seems to proceed under a mixed rate-determining process of the charge transfer and diffusion of Zn ions. The current efficiency increased with solution temperature since the diffusion of Zn ions was accelerated. The Ni content in the deposited films increased with solution temperature at all the current densities, since Ni deposition was more accelerated than Zn deposition with increasing solution temperature in the region where the charge transfer process was rate-limiting. The γ phase of the deposited films increased with increasing solution temperature.</p>

    DOI: 10.2355/tetsutohagane.tetsu-2021-092

    Web of Science

    Scopus

    CiNii Research

  • Synergistic Effect of Brightener and Solution Temperature on the Electrodeposition Behavior of Zn-Ni Alloy from Alkaline Zincate Solution

    Bae Sung Hwa, Oue Satoshi, Taninouchi Yu-ki, Son Injoon, Nakano Hiroaki

    Tetsu-to-Hagane   108 ( 4 )   268 - 281   2022   ISSN:00211575 eISSN:18832954

     More details

    Language:Japanese   Publisher:The Iron and Steel Institute of Japan  

    <p>Zn–Ni alloys were electrodeposited on a Cu electrode at 10–5000 A·m<sup>−2</sup>, 5 × 10<sup>4</sup> C·m<sup>−2</sup>, and 293, 313 and 333 K in unagitated zincate solutions containing the reaction product of epichlorohydrin and imidazole (IME) as a brightener. The synergistic effect of IEM and solution temperature on the deposition behavior of Zn–Ni alloy was investigated. The transition current density, at which the deposition behavior shifted from the normal type to anomalous ones, decreased with IME at 293 K, but didn’t change regardless of IME addition at 313 and 333 K. The suppression effect of IME on the Zn and Ni depositions during alloy deposition was observed at 293 K, while at 313 and 333 K, the suppression effect was decreased on the Zn deposition but was maintained on the Ni deposition. Therefore, Ni content in deposits significantly decreased with IME as temperature increased. The current efficiency for Zn deposition significantly decreased with IME at 293 K, while the degree of decrease was small at 313 and 333 K. The content of C in deposits was highest at 293 K, and decreased with increasing solution temperature, indicating that the adsorption ability of IME on the cathode decreases with increasing temperature. As a result, the suppression effect of IME on the Zn deposition seems to decrease with increasing temperature. The gloss of deposited films was highest at 293 K. This is attributed to adsorption ability of IME being large at 293 K and deposited films with fine crystals becoming smooth.</p>

    DOI: 10.2355/tetsutohagane.tetsu-2021-105

    Web of Science

    Scopus

    CiNii Research

  • Effect of Halide Ions on Electrodeposition Behavior and Morphology of Electrolytic Copper Powder Reviewed International journal

    #Kentaro Ochi, @Makoto Sekiguchi, @Satoshi Oue, @Hiroaki Nakano

    Materials Transaction   62 ( 11 )   1647 - 1652   2021.11

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

    To investigate the effect of halide ions on the electrodeposition behavior and morphology of copper powder, polarization curves were measured and constant current electrolysis of 300 and 500 A·m−2 was conducted in an electrolytic solution containing 0.079 mol·dm−3 Cu2+ and 0.5 mol·dm−3 free H2SO4 at 293 and 303 K without stirring. Cl− promoted the deposition of copper powder, while Br− and I− suppressed deposition. The current efficiency for copper deposition increased with the addition of Cl− and decreased with the addition of Br−. The addition of Cl− reduced the average particle size of the copper powder and caused the dendrite-shaped branches and trunks to grow thinner and longer, resulting in a lower tap density. In contrast, the addition of Br− caused the average particle size, average crystallite size, and tap density of the copper powder to decrease. With increasing Cl− concentration, the current efficiency for copper deposition increased, that is, copper deposition was promoted. This even occurred in the region in which Cu2+ ion diffusion was the rate-determining process, indicating that the deposition of copper powder was affected by the charge-transfer process. The change in the morphology of the copper powder with the addition of halide ions is attributed to the change in the charge-transfer process. The deposition of copper powder appears to proceed under a mixed rate-determining process involving the diffusion of Cu2+ ions and charge transfer.

    This Paper was Originally Published in Japanese in J. Japan Inst. Met. Mater. 85 (2021) 207–212. Captions of all figures and tables are slightly modified.

    DOI: https://doi.org/10.2320/matertrans.MT-M2021126

  • ポリエチレンイミンを含む溶液からの球状電解銅粉の作製 Reviewed

    #越智 健太郎, @関口 誠, @大上 悟, @中野 博昭

    日本金属学会誌   85 ( 11 )   413 - 419   2021.11

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

    It was investigated whether the spherical electrolytic copper powder could be electrolyzed by adding polyethyleneimine (PEI) in the electrolytic solution. In order to identify the optimum electrolysis conditions for the electrodeposition of spherical copper powder, we investigated the effect of molecular weight of PEI, the amount of PEI added, the current density, and the cathode material on the morphology of electrolytic copper powder. The electrodeposited copper powder was analyzed with a scanning electron microscope, a laser diffraction scattering particle size distribution measuring device, and an X-ray diffractometer. It was found that the spherical copper powder can be obtained by electrolysis at 3000 A·m−2 scraping copper powder every 10 to 60 s in solution containing 0.126 mol·dm−3 Cu2+, 0.5 mol·dm−3 free H2SO4 and 1.0 g·dm−3 PEI with average molecular weight 10000.

    DOI: https://doi.org/10.2320/jinstmet.J2021032

  • Effect of Reaction Product of Epichlorohydrin and Imidazole on the Electrodeposition Behavior of Zn–Ni Alloy from Alkaline Zincate Solution Reviewed International journal

    #Sung Hwa BAE, @Satoshi OUE,@Injoon SON and @Hiroaki NAKANO

    ISIJ International   61 ( 8 )   2256 - 2263   2021.8

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

    A Zn–Ni alloy was electrodeposited on a Cu electrode at a current density of 10–5 000 A·m − 2, a charge of 5 × 104 C·m−2, and temperature of 293 K in an unagitated zincate solution containing the reaction product of epichlorohydrin and imidazole (EI polymer) as a brightener. The effect of the EI polymer on the deposition behavior of the Zn–Ni alloy was investigated. The transition current densities at which the deposition behavior shifted from the normal type to anomalous were 50–100 A·m−2 and 10–20 A·m−2 in the EI polymer-free solution and polymer containing solutions, respectively, indicating that the EI polymer decreased the transition current density. The transition current density corresponded to the current density at which the potential of the total polarization curve significantly shifted from the more noble region than the equilibrium potential of Zn to the less noble region. The decrease in transition current density with EI polymer was attributed to the suppression of hydrogen evolution. In addition, the current efficiency for alloy deposition in the high-current-density region decreased due to the suppression of both Zn and Ni depositions. The Ni content of deposited films decreased with EI polymer, indicating that Ni deposition was more suppressed with the EI polymer addition than Zn deposition. With increasing current density, the crystals of the films deposited from the EI polymer-containing solution smoothened and showed sig- nificant brightness. The oxidation reaction of the films deposited from the EI polymer-containing solution was suppressed, thus causing the corrosion potential to shift to a noble direction.

    DOI: https://doi.org/10.2355/isijinternational.ISIJINT-2021-080

  • 電解銅粉の析出挙動および銅粉の形態に及ぼす高分子添加剤と塩化物イオンの影響 Reviewed

    #越智 健太郎, @関口 誠, @大上 悟, @中野 博昭

    日本金属学会誌   85 ( 7 )   264 - 272   2021.7

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

    To investigate the effect of polymer additives and chloride ions on the electrodeposition behavior and morphology of copper powder, the polarization curves were measured and constant current electrolysis of 300 A·m−2 and 500 A·m−2 was conducted in an electrolytic solution containing 0.079 mol·dm−3 of Cu2+ and 0.5 mol·dm−3 of free H2SO4 at 293K and 393 K without stirring. Polyethylene glycol (PEG) and polyethyleneimine (PEI) were used as polymer additives. PEG and PEI had a suppressing effect on the electrodeposition of copper powder. The current efficiency for Cu deposition decreased with the addition of PEG and PEI. The addition of PEG decreased the average particle size of the copper powder, while PEI didn’t change the average particle size. When Cl− coexisted with PEG, the suppressing effect on the electrodeposition of copper powder became even greater and the particle size of the copper powder became finer than when Cl− or PEG was added alone

    DOI: https://doi.org/10.2320/jinstmet.J2021018

  • 電解銅粉の析出挙動および銅粉の形態に及ぼすハロゲン化物イオンの影響 Reviewed

    #越智 健太郎, @関口 誠, @大上 悟, @中野 博昭

    日本金属学会誌   85 ( 6 )   207 - 212   2021.6

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

    To investigate the effect of halide ions on the electrodeposition behavior and morphology of copper powder, the polarization curves were measured and constant current electrolysis of 300 A·m−2 and 500 A·m−2 was conducted in an electrolytic solution of 0.079 mol·dm−3 of Cu2+ and 0.5 mol·dm−3 of free H2SO4 at 293 K and 303 K without stirring. In the deposition of copper powder, Cl− had a promoting effect on the deposition of copper powder, while Br− and I− had a suppressing effect. The current efficiency for Cu deposition increased with the addition of Cl− and decreased with Br−. The addition of Cl− reduced the average particle size of the copper powder and grown dendrite-shaped branches and trunks, resulting in a lower tap density. On the other hand, when Br− was added, the average particle size and crystallite size of the copper powder became smaller, and the tap density also became smaller. With increasing Cl− concentration in solution, the current efficiency for Cu deposition increased, that is, copper deposition was promoted even in the diffusion rate-determining region of Cu2+ ions, showing that the deposition of copper powder was affected by the charge transfer process for Cu deposition. The change in morphology of Cu powder with halide ions is attributed to change of the charge transfer process. The deposition of Cu powder seems to proceed under a mixed rate-determining process of the diffusion of Cu2+ ions and charge transfer.

    DOI: https://doi.org/10.2320/jinstmet.J2021008

  • E!ect of Organic Additives on Electrodeposition Behavior of Zn from Zincate Solution Containing Potassium Hydroxide and Its Micro Structure Reviewed International journal

    #Kenta Fukumoto, @Satoshi Oue, @Tsukasa Niwa, @Yoshiharu Kikuchi, @Shinya Akamatsu and @Hiroaki Nakano

    Materials Transactions   62 ( 6 )   807 - 814   2021.6

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

    Zn was electrodeposited on an Fe electrode at a current density of 50!5000 A·m"2, charge of 4 © 104 C·m"2, and temperature of 313 K in an unagitated zincate solution containing 0.62 mol·dm"3 of ZnO, 4.0 mol·dm"3 of KOH or NaOH, and organic additives. The e!ects of KOH and NaOH on the deposition behavior of Zn in the solution containing the organic additives and on the microstructure of the deposits were investigated. In a solution containing a straight-chain polymer composed of a quaternary ammonium cation (PQ) and a quaternary ammonium salt with a benzene ring (QA), the current e"ciency for Zn deposition in a high-current-density region (1000!5000 A·m"2) to produce glossy #lms was higher with KOH than that with NaOH. At high current densities above 1000 A·m"2, the Zn deposition approached the di!usion limitation of ZnO22" ions. With the addition of PQ and QA, the di!usion of ZnO22" ions was signi#cantly suppressed, and the degree of suppression was smaller with KOH than that with NaOH. The polarization resistance at 200 A·m"2, which was investigated through alternating current impedance, revealed that the adsorption ability of PQ and QA onto the cathode was smaller with KOH than that with NaOH. Since the suppression e!ect of the additives on the Zn deposition was smaller with KOH than that with NaOH, the current e"ciency for Zn deposition in the high-current-density region was larger with KOH. The upper limit of the current density needed to produce glossy #lms was smaller with KOH than that with NaOH, and spongy thin #lms were partially observed on platelet crystals obtained at high current densities in the KOH solution. The C content resulting from the additives in the deposited Zn was smaller with KOH because the adsorption ability of PQ and QA onto the cathode was smaller with KOH than that with NaOH.

    DOI: doi:10.2320/matertrans.MT-M2021027

  • Effect of Additives on the Deposition Behavior and Micro Structure of Invar Fe–Ni Alloys with Low Thermal Expansion Electrodeposited from Watt’s Solution Reviewed International journal

    #Keisuke FUKUDA, @Yuki KASHIWA, @Satoshi OUE, @Tomio TAKASU, @Hiroaki NAKANO

    ISIJ International   1 ( 3 )   919 - 928   2021.3

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

    The electrodeposition of Invar Fe–Ni alloy with low thermal expansion was performed at 100–5 000 A·m􏰖􏰗 and 105 C·m􏰖􏰗 in agitated Watt’s solutions containing NiSO4, NiCl2, FeSO4, malonic acid (C3H4O4), saccharin sodium (C7H4NNaO3S), and H3BO3 at 50°C. With increasing concentration of malonic acid, the Ni content in deposits formed at current densities greater than 2 000 A·m 􏰖 􏰗 decreased, whereas the Ni content increased in deposits formed at current densities less than 1 000 A·m 􏰖 􏰗. The current efficiency for alloy deposition decreased with increasing concentration of malonic acid. The deposits were com- posed of granular crystals whose size decreased with increasing concentration of malonic acid. With the addition of saccharin, the Ni content in the deposits decreased substantially, and the current efficiency for alloy deposition increased. With the addition of boric acid, the Ni content in the deposits somewhat decreased, and the current efficiency for alloy deposition increased. The surface morphology of deposits changed as the current density was varied and with the addition of saccharin, whereas it rarely changed with the addition of boric acid. The morphology was found to depend on the Ni content in the deposits. The deposits with a Ni content of 29–38 mass% were composed of granular crystals approximately 300 nm in size, whereas the deposits with a Ni content of 41–52 mass% exhibited a smooth surface that consisted of fine crystals. The effects of additives on the Ni content in deposits and current efficiency can be explained by the changes in the partial polarization curves for Fe and Ni depositions and H2 evolution during Fe–Ni alloy deposition.

    DOI: https://doi.org/10.2355/isijinternational.ISIJINT-2020-105

  • アルカリジンケート浴からの Zn − Ni 合金電析挙動に 及ぼすエピクロルヒドリン−イミダゾール反応物の影響 Reviewed

    #裵 聖和, @大上 悟, @孫 仁俊, @中野 博昭

    鉄と鋼   107 ( 3 )   229 - 236   2021.3

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

    Effect of Reaction Product of Epichlorohydrin and Imidazole on the Electrodeposition Behavior of Zn-Ni Alloy from Alkaline Zincate Solution

    DOI: https://doi.org/10.2355/tetsutohagane.TETSU-2020-108

  • 水酸化カリウムを用いたジンケート浴からの亜鉛の電析挙動とその微細構造に及ぼす有機添加剤の影響 Reviewed

    #福元健太, @大上悟, @丹羽司, @菊池義治, @赤松慎也, @中野博昭

    日本金属学会誌   85 ( 2 )   59 - 66   2021.2

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

    E!ect of Organic Additives on Electrodeposition Behavior of Zn from Zincate Solution Containing Potassium Hydroxide and Its Micro Structure

    DOI: doi:10.2320/jinstmet.J2020043

  • Effect of Polyethylene Glycol on Electrodeposition of Zn Active Metal Oxide Composites from a Particle-Free Solution Reviewed International journal

    #Daiki Ueda , @Satoshi Oue , @Tomio Takasu and @Hiroaki Nakano

    Materials Transactions   61 ( 11 )   2170 - 2177   2020.11

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

    Electrodeposition of Zn!Zr and Zn!V oxide composites was performed under galvanostatic conditions at 313 K on unagitated pH 2 sulfate solutions containing Zn2+ and Zr4+ or VO2+ ions and an additive such as polyethylene glycol (PEG). The e!ects of PEG addition on the co- deposition of Zr and V oxides and their polarization behavior, and on the microstructure of the deposits, were investigated. Although the Zr content in the deposits obtained from the Zn!Zr solution in the absence of PEG was approximately zero, it increased signi"cantly at a current density of above 1000A·m"2 following the addition of PEG. In the Zn!V solution, the V content in the deposits obtained from 100 to 2000 A·m"2 was higher with PEG than without it. In the presence of PEG, the cathode potential polarized, the rate of hydrogen evolution increased, and the hydrolysis reaction of Zr4+ and VO2+ ions proceeded smoothly, resulting in an increase in the Zr and V content in the deposits. Additionally, the crystal platelets of Zn in the Zn!Zr and the Zn!V oxide "lms became "ne, and the surface coverage of the spongiform Zr and "lm-like V oxides increased. Furthermore, the corrosion current densities of the Zn!Zr and Zn!V oxide "lms obtained from the solution with PEG were lower than those from the solution without it. The reduction rate of dissolved oxygen decreased in the "lms in the presence of PEG, thereby leading to a decrease in the corrosion current density.

    DOI: doi:10.2320/matertrans.MT-M2020164

  • Effect of Polyethylene Glycol and Glue on Electrodeposition Behavior of Zn from Electrowinning solution and its Crystal Structure Reviewed International journal

    #Keita Uchida, @Satoshi Oue, @Hiroaki Nakano

    Materials Transactions   61 ( 10 )   1958 - 1966   2020.10

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

    To elucidate the e!ects of polyethylene glycol (PEG) and glue on the deposition of Zn from electrowinning solution and its resulting crystal structure, Zn electrodeposition was performed at a current density of 600 A·m!2 and a charge of 8.64 © 106 C·m!2 in an agitated sulfate solution containing 1.07 and 1.8 mol·dm!3 of ZnSO4 and H2SO4, respectively, at 45°C. With the additions of PEG and glue, the evolution of hydrogen was suppressed at the current density region less than the critical current density for Zn deposition, decreasing the critical current density of Zn. The degree of decrease in the critical current density of Zn was larger with glue than that with PEG. The current e"ciency for Zn deposition was higher with PEG and glue than that without at the low current density region because the critical current density of Zn decreased with additives. Since the additives suppressed Zn deposition more than the hydrogen evolution at the high current density region, the current e"ciency of Zn decreased by increasing the additive concentration. At the high current density region, little di!erence was observed in the current e"ciency of Zn between PEG and glue. The e!ect of the molecular weight of PEG on the current e"ciency of Zn was rarely observed at the molecular weight above 2000. With the addition of PEG, the deposits became #ne platelets with preferred orientation of f101"1g and layered pyramidally, while f112"0g orientation was obtained, and the platelets grew perpendicularly to the substrate with the addition of glue. The surface roughness of deposited Zn decreased with additives, and it decreased further with PEG compared with that with glue.

    DOI: https://doi.org/10.2320/matertrans.MT-M2020182

  • Synergistic Effects of Additives on the Deposition Behavior, Throwing Power and Surface Roughness of Cu Obtained from Electrorefining Solution Reviewed International journal

    #Atsuhiro Suzuki , @Satoshi Oue and @Hiroaki Nakano

    Materials Transactions   61 ( 5 )   972 - 979   2020.5

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

    To elucidate the synergistic effects of gelatin, thiourea, and chloride ions on the deposition behavior, throwing power, and surface roughness of Cu obtained from electrorefining solutions, Cu electrodeposition was performed at a current density of 200 A·m12 and a charge of 5 © 105 C·m12 in an unagitated sulfate solution containing 0.708 and 2.04 mol·dm13 of CuSO4 and H2SO4, respectively, at a temperature of 60°C. Gelatin and chloride ions have synergistic effects on the polarization for Cu deposition, and the polarization effect increased with each concentration. Thiourea was found to promote Cu deposition and decrease the polarization effects of gelatin and chloride ions as its concentration in the solution were increased. The throwing power and surface roughness of the deposited Cu changed depending on the concentration of the three additives. The throwing power of Cu significantly worsened with increasing concentrations of thiourea and its surface roughness decreased with decreasing concentrations of chloride ions. With increasing concentrations of gelatin, the throwing power of Cu improved and its surface roughness decreased. The correlation between the throwing power and polarization resistance of Cu deposition was observed, and the throwing power of Cu improved as its polarization resistance increased. Since the surface roughness of deposited Cu is a result of its micro deposition properties, it does not depend on polarization resistance alone. Thiourea appeared to promote Cu deposition at the concavity, and therefore, it decreased the surface roughness of the deposited copper.

    DOI: doi:10.2320/matertrans.M-M2020808

  • Effect of Organic Additives on the Electrodeposition Behavior of Zn from an Alkaline Zincate Solution and Its Microstructure Reviewed International journal

    #Kenta Fukumoto, @Satoshi Oue, @Yoshiharu Kikuchi, @Shinya Akamatsu, @Tomio Takasu, @Hiroaki Nakano

    Materials Transactions   61 ( 3 )   497 - 505   2020.3

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

    Electrodeposition of Zn was performed on an Fe electrode at a current density of 20­5000 A·m12 and a charge of 4 © 104 C·m12 in an unagitated zincate solution at 313 K containing 0.62 mol·dm13 of ZnO, 4.0 mol·dm13 of NaOH, and organic additives. The effects of organic additives on the deposition behavior of Zn and the microstructure of the deposits were investigated. Glossy films were obtained by depositing at current densities higher than 1000A·m12 from the solution containing additives of a straight-chain polymer composed of a quaternary ammonium cation (PQ) and a quaternary ammonium salt with a benzene ring (QA). The polarization curve was separated into partial polarization curves of Zn deposition and hydrogen evolution by using the galvanostatic data of Zn deposition. The overpotentials of the charge transfer of Zn deposition and that of ZnO221 ion diffusion increased with the addition of PQ and QA. The increase in overpotential was considerable at potentials less noble than 11.5 V. Zn deposition reached the diffusion limit of ZnO221 ions at potentials less noble than 11.5 V, indicating that the diffusion of ZnO221 ions was suppressed considerably by PQ and QA. With the addition of PQ and QA, C, N, and H were codeposited with Zn, which demonstrated that the additives of PQ and QA were incorporated into the deposited films. Zn crystallite size decreased with increasing current density. At a high current density of 5000 A·m12, the crystallite size decreased with the addition of PQ and QA, and the surface of the film was smooth. The orientation index of the f101"0g plane of Zn deposited from the solution containing PQ and QA increased with increasing current density. The changes in the crystallite size and crystal orientation of deposited Zn were explained by the deposition overpotential.

    DOI: doi:10.2320/matertrans.MT-M2019316

  • 電解採取浴からの亜鉛の電析挙動と結晶組織に及ぼすポリエチレングリコール,ニカワ添加の影響 Reviewed

    #内田啓太, @大上 悟, @高須登実男, @中野博昭

    日本金属学会誌   84 ( 2 )   58 - 65   2020.2

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

    To elucidate the effects of polyethylene glycol(PEG)and glue on the deposition behavior of Zn from electrowinning solutions and its crystal structure, Zn electrodeposition was performed at a current density of 600 A·m−2 and a charge of 8.64 × 106 C·m−2 in an agitated sulfate solution containing 1.07 mol·dm−3 and 1.8 mol·dm−3 of ZnSO4 and H2SO4, respectively, at a temperature of 45°C. With the additions of PEG and glue, the evolution of hydrogen was suppressed at current density region less than the critical current density for Zn deposition, resulting in decrease in critical current density of Zn. The degree of decrease in critical current density of Zn was larger with glue than that with PEG. The current efficiency for Zn deposition was higher with PEG and glue than that without at low current density region because the critical current density of Zn decreased with additives. Since the additives suppressed Zn deposition more than the hydrogen evolution at high current density region, the current efficiency of Zn decreased with increasing concentration of additives in solution. At high current density region, there was little difference in current efficiency of Zn between PEG and glue. The effect of molecular weight of PEG on the current efficiency of Zn was rarely observed at molecular weight above 2000. With an addition of PEG, the deposits became fine platelets crystals with preferred orientation of {1011} and layered pyramidally, while the deposits orientated to {1120} preferentially and the platelets crystals grew perpendicu- larly to the substrate with an addition of glue. The surface roughness of deposited Zn decreased with additives and it was smaller with PEG than that with glue

    DOI: doi:10.2320/jinstmet.J2019045

  • 非懸濁溶液からのZn−活性金属酸化物複合電析に及ぼすポリエチレングリコール添加の影響 Reviewed

    #植田大樹, @大上 悟, @高須登実男, @中野博昭

    日本金属学会誌   84 ( 2 )   50 - 57   2020.2

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

    Electrodeposition of Zn-Zr oxide and Zn-V oxide composites was performed under galvanostatic conditions from an unagitated sulfate solution containing Zn2+, Zr4+, or VO2+ ions and an additive such as polyethylene glycol(PEG). The sulfate solution had a pH of 2 and the electrodeposition was performed at 313 K. The effects of PEG on the co-deposition of the Zr oxides and V oxides and their polarization be- havior were investigated. Additionally, the effects of PEG on the microstructure of the deposits were investigated. Although the Zr content in the deposits obtained from the Zn-Zr solution without PEG was approximately zero, it increased significantly at a current density above 1000 A m−2 following the addition of PEG. In the Zn-V solution, the V content in the deposits obtained from 100 A m−2 to 2000 A m−2 was higher with PEG than that without PEG. In the presence of PEG, the cathode potential polarized, the rate of hydrogen evolution increased, and the hydrolysis reaction of Zr4+ and VO2+ ions occurred easily. This resulted in the Zr content and V content increasing in the deposits. Additional- ly, the crystal platelets of Zn in the Zn-Zr oxide film and the Zn-V oxide film became fine, and the surface coverage of the spongiform Zr ox- ide and the film-like V oxide increased. Furthermore, the corrosion current densities of the Zn-Zr oxide film and the Zn-V oxide film ob- tained from the solution with PEG were lower than those from the solution without PEG. The reduction reaction of dissolved oxygen decreased in the films with PEG, thereby decreasing the corrosion current density. [doi:10.2320/jinstmet.J2019031]

    DOI: doi:10.2320/jinstmet.J2019031

  • アルカリジンケート浴からの亜鉛の電析挙動とその微細構造に及ぼす有機添加剤の影響 Reviewed

    #福元 健太, @大上 悟, @菊池 義治, @赤松 慎也, @高須登実男, @中野 博昭

    日本金属学会誌   83 ( 11 )   399 - 406   2019.10

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

    Electrodeposition of Zn was performed on a Fe electrode at a current density of 20-5000 A·m−2 and a charge of 4 × 104 C·m−2 in an un- agitated zincate solution containing 0.62 mol·dm−3 of ZnO, 4.0 mol·dm−3 of NaOH and organic additives at 313 K. The effects of organic ad- ditives on the deposition behavior of Zn and the microstructure of the deposits were investigated. The films deposited at current densities higher than 1000 A・m−2 from the solution containing additives of a straight-chain polymer composed of quaternary ammonium cation(PQ) and a quaternary ammonium salt with benzene ring(QA)exhibited the gloss. The polarization curve was separated into a partial polarization curve of Zn deposition and that of hydrogen evolution by using the galvanostatic data of Zn deposition. The overpotentials of charge transfer of Zn deposition and that of ZnO22− ions diffusion increased with additions of PQ and QA. The increase in overpotential was remarkable at potential less noble than −1.5 V. Zn deposition reached the diffusion limit of ZnO22− ions at potential less noble than −1.5 V, indicating that the diffusion of ZnO22− ions was greatly suppressed by PQ and QA. With additions of PQ and QA, the C, N and H were co-deposited with Zn, showing that the additives of PQ and QA were incorporated in deposited films. The size of the Zn crystallite decreased with increasing current density. At a high current density of 5000 A・m−2, the crystallite size decreased furthermore with additions of PQ and QA and the filmshowedthesmoothsurface.Theorientationindexofthe{101 ̄0}planeofZndepositedfromthesolutioncontainingPQandQAincreased with current density. The change of the crystallite size and crystal orientation of deposited Zn were explained related to the deposition overpo- tential.

    DOI: doi:10.2320/jinstmet.J2019027

  • 電析 Zn 鋼板の Zn と Fe の結晶方位関係に及ぼす鋼板表面性状の影響 Reviewed

    #今谷 祐貴, @大上 悟, @小林 亜暢, @高橋 武寛, @後藤 靖人, @中野 博昭

    日本金属学会誌   83 ( 10 )   363 - 371   2019.10

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

    To investigate the effect of the surface texture of steel on the crystal orientation relation between Fe and Zn, we deposited Zn at 1500 A・ m−2 and 1.48 × 104 C・m−2 onto both Al-killed and IF steel sheets in an agitated sulfate solution at 313 K. Chemically polishing the steel simplifies the deposition of Zn epitaxially because of the decreased strain in the steel surface. For Zn deposited on Al-killed steel, the Burgers’ orientation relation of {110}Fe//{0001}Zn was completed after the chemical polishing of the steel. In this case, because the orientation of {111}Fe increased and Zn was deposited according to the orientation relation of {110}Fe//{0001}Zn, the orientation of {0001}Zn decreased. In contrast, for Zn deposited on IF steel, the preferred relation was {111}Fe//{0001}Zn. The crystal-grain size of IF steel is larger than that of Al-killed steel, which makes the epitaxial growth of Zn easier on IF steel than on Al-killed steel. The orientation of {111}Fe was more promi- nent in IF steel than in Al-killed steel. Because the proportion of {0001}Zn increases under conditions where the epitaxial growth of Zn occurs easily and the orientation {111}Fe was more prominent in IF steel, this appears to be the cause of the relation of {111}Fe//{0001}Zn. The ori- entation relation between the deposited Zn and steel changes based on the strain, crystal orientation, and grain size of the steel. Therefore, the crystal orientation of the deposited Zn changes as well.

    DOI: 10.2320/jinstmet.J2019023

  • ワット浴からの低熱膨張型Fe—Niインバー合金の電析挙動と微細構造に及ぼす添加剤の影響 Reviewed

    #福田 圭祐, @柏 裕樹, @大上 悟, @高須 登実男, @中野 博昭

    鉄と鋼   105 ( 10 )   48 - 57   2019.9

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

    The electrodeposition of invar Fe-Ni alloy with low thermal expansion was performed at 100-5000 A·m–2 and 105 C·m–2 in agitated Watt’s solution containing NiSO4, NiCl2, FeSO4, C3H4O4, C7H4NNaO3S and H3BO3 at 50oC. With increasing the concentration of malonic acid, the Ni content in deposits decreased at higher current density region than 2000 A·m–2, while it increased at lower current density region than 1000 A·m–2. The current efficiency for alloy deposition decreased with increasing the concentration of malonic acid. The deposits were composed of granular crystals whose size decreased with increasing the concentration of malonic acid. With an addition of saccharin, the Ni content in deposits significantly decreased, and the current efficiency for alloy deposition increased. With an addition of boric acid, the Ni content in deposits somewhat decreased, and the current efficiency for alloy deposition increased. The surface morphology of deposits changed with the current density and an addition of saccharin, and rarely changed with an addition of boric acid. It was found that the morphology depended on the Ni content in deposits. The deposits with Ni content of 29-38 mass% were composed of granular crystals approximately 300 nm in size, while the deposits with Ni content of 41-52 mass% showed the smooth surface consisted of fine crystals. The effects of additives on the Ni content in deposits and current efficiency can be explained by the change of partial polarization curve for Fe and Ni deposition and hydrogen evolution in Fe-Ni alloy deposition.

    DOI: https://doi.org/10.2355/tetsutohagane.TETSU-2019-045

  • Effects of Electrolysis Conditions on the Formation of Electrodeposited Invar Fe–Ni Alloys with Low Thermal Expansion Reviewed International journal

    #Keisuke FUKUDA, @Yuki KASHIWA, @Satoshi OUE, @Tomio TAKASU, @Hiroaki NAKANO

    ISIJ International   59 ( 9 )   1632 - 1641   2019.9

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

    To elucidate the effects of the electrolysis conditions on the formation of electrodeposited invar Fe–Ni alloys with low thermal expansion, Fe–Ni electrodeposition was performed at 10–5 000 A·m − 2 and 5 × 105 C·m−2 in an agitated solution containing NiSO4, NiCl2, FeSO4, H3BO3, C7H4NNaO3S, and C3H4O4 at 40°C–60°C. In the low-current-density region, the Ni content in the deposits significantly decreased with increasing current density, reached a minimum, and then increased after reaching the diffusion-limiting current density for Fe deposition. With the increasing concentration of FeSO4 in the solution, the Ni con- tent in the deposits decreased in the lower-current-density region, reached a constant at a moderate cur- rent density, and then began to increase at higher current density. As a result, the current density range in which the Ni content in the deposits reached a minimum and remained constant became wider with increasing FeSO4 concentration. With the decreasing pH of the solution, since the partial polarization curve for H2 evolution and the total polarization curve shifted to a higher-current-density region, the curve of the Ni content in the deposits as a function of the current density shifted toward a higher current density. The change in the composition of the Fe–Ni alloy deposits because of the electrolysis conditions can be explained by the changes in the total polarization curve and the partial polarization curves for Fe and Ni deposition and H2 evolution.

    DOI: https://doi.org/10.2355/isijinternational.ISIJINT-2019-023

  • アルカリジンケート浴からの亜鉛の電析挙動とその微細構造に及ぼす有機添加剤の影響 Reviewed

    #福元健太,@大上悟,@菊池義治,@赤松慎也,@高須登実男, @中野博昭

    日本金属学会誌   2019.8

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

    Electrodeposition of Zn was performed on a Fe electrode at a current density of 20-5000 A·m−2 and a charge of 4 × 104 C·m−2 in an un- agitated zincate solution containing 0.62 mol·dm−3 of ZnO, 4.0 mol·dm−3 of NaOH and organic additives at 313 K. The effects of organic ad- ditives on the deposition behavior of Zn and the microstructure of the deposits were investigated. The films deposited at current densities higher than 1000 A・m−2 from the solution containing additives of a straight-chain polymer composed of quaternary ammonium cation(PQ) and a quaternary ammonium salt with benzene ring(QA)exhibited the gloss. The polarization curve was separated into a partial polarization curve of Zn deposition and that of hydrogen evolution by using the galvanostatic data of Zn deposition. The overpotentials of charge transfer of Zn deposition and that of ZnO22− ions diffusion increased with additions of PQ and QA. The increase in overpotential was remarkable at potential less noble than −1.5 V. Zn deposition reached the diffusion limit of ZnO22− ions at potential less noble than −1.5 V, indicating that the diffusion of ZnO22− ions was greatly suppressed by PQ and QA. With additions of PQ and QA, the C, N and H were co-deposited with Zn, showing that the additives of PQ and QA were incorporated in deposited films. The size of the Zn crystallite decreased with increasing current density. At a high current density of 5000 A・m−2, the crystallite size decreased furthermore with additions of PQ and QA and the film showed the smooth surface. The orientation index of the {101 ̄0} plane of Zn deposited from the solution containing PQ and QA increased with current density. The change of the crystallite size and crystal orientation of deposited Zn were explained related to the deposition overpo- tential. [doi:10.2320/jinstmet.J2019027]

    DOI: https://doi.org/10.2320/jinstmet.J2019027

  • Four-dimensional observation of ductile fracture in sintered iron using synchrotron X-ray laminography Reviewed International journal

    @Y. Ozaki, #Y. Mugita, @M. Aramaki, @O. Furukimi, @S. Oue, @F. Jiang, @T. Tsuji, @A. Takeuchi, @M. Uesugi and @K. Ashizuka

    Powder Metallurgy   2019.3

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

    Synchrotron X-ray laminography was used to examine the time-dependent evolution of the three-dimensional (3D) morphology of micropores in sintered iron during the tensile test. 3D snapshots showed that the networked open pores grow wider than 20 μm along the tensile direction, resulting in the internal necking of the specimen. Subsequently, these pores initiated the cracks perpendicular to the tensile direction by coalescing with the surrounding pre-existing microvoids or with the secondary-generated voids immediately before fracture. Topological analysis of the barycentric positions of these microvoids showed that they form the two-dimensional networks within the ∼20 μm of radius area. These observations strongly indicate that the microvoid coalescence could occur on shear planes formed close to the enlarged open pores or between closed pores by strain accumulation and play an important role in the crack initiation.

    DOI: https://doi.org/10.1080/00325899.2019.1585032

  • The Effects of Additives on the Electrodeposition of a Zn-Zr Oxide Composite from Dispersed Particle-Free Solution Reviewed International journal

    #Yosuke Hara, #Daiki Ueda, @Satoshi Oue and @Hiroaki Nakano

    Materials Transactions   60 ( 2 )   297 - 305   2019.2

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

    Electrodeposition of a Zn­Zr oxide composite was performed under galvanostatic conditions from an unagitated sulfate solution containing
    Zn2+ and Zr ions, as well as additives, such as NO3

    1 ions and polyethylene glycol (PEG), at pH 2 and 313 K. The effect of these additives on the
    codeposition of Zr oxide and its polarization behavior, as well as the microstructure of the deposits, was investigated. The Zr content in the
    deposits obtained at varying current densities increased significantly with the addition of 2.0 g·dm13 of NaNO3. Zn­Zr oxide films deposited
    from the NaNO3-containing solution showed a massive structure composed of fine crystals without crystalline Zn platelets, although large cracks
    were observed between the large crystals. EDX analysis revealed that Zr codeposited on the massive crystals as a fine concave-convex oxide.
    The corrosion current density of the Zn­Zr oxide films deposited from the NaNO3-containing solution was almost the same as that of pure Zn
    deposits, showing that there is no improvement in corrosion resistance when Zn is codeposited with Zr oxide. Moreover, Zr content in the
    deposits obtained from the PEG-containing solution increased significantly along with increasing current density above 1000 A·m12
    . With the
    addition of 1000 mg·dm13 of PEG, the crystalline Zn platelets disappeared, and the deposits were instead composed of fine mesh-like crystals
    with a preferred orientation of the f1010! gZn plane, resulting in a smooth surface. The cathodic current density for the reduction of dissolved
    oxygen on the Zn­Zr oxide films deposited from the PEG-containing solution was smaller than that of the pure Zn deposits, and as a result, the
    corrosion current density of the Zn­Zr oxide films was smaller than that of the pure Zn deposits. The increase in Zr content in the deposits with
    NO3
    1 ions and PEG is attributed to the acceleration of the hydrolysis of Zr ions. [doi:10.2320/matertrans.M2018353]

    DOI: doi:10.2320/matertrans.M2018353

  • 低熱膨張型電析 Fe-Niインバー合金の形成に及ぼす電解条件の影響 Reviewed

    #福田 圭祐 @柏 裕樹 @大上 悟 @高須 登実男 @中野 博昭

    鉄と鋼   105 ( 1 )   55 - 63   2019.1

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

    To elucidate the effects of electrolysis conditions on the formation of electrodeposited invar Fe-Ni alloys with low thermal expansion, Fe-Ni electrodeposition was performed at 10-5000 A·m–2 and 5×105 C·m–2 in agitated solution containing NiSO4, NiCl2, H3BO3, FeSO4, C7H4NNaO3S and C3H4O4 at 40-60°C. Ni content in deposits significantly decreased in the low current density region with increasing current density, reached a minimum, and then increased due to reaching at diffusion limiting current density for Fe deposition as the current density increased further. With increasing the concentration of FeSO4 in solution, Ni content in deposits decreased at lower current density region, reached a constant at lower current density, and then began to increase at higher current density. As a result, the current density range where Ni content in deposits was minimum and constant became wider with higher concentration of FeSO4. With decreasing pH in solution, since the partial polarization curve for H2 evolution and total polarization curve sifted to higher current density region, Ni content in deposits-cur- rent density curve shifted to higher current density region. With stirring the solution, Ni content in deposits reached a minimum as the current density increased, and then began to increase at higher current density than without stirring due to increase in diffusion limiting current densi- ty for Fe deposition. The change of the composition in deposits by electrolysis condition can be explained by the changes of the total polariza- tion curve for Fe-Ni alloy deposition and the partial polarization curves for Fe and Ni depositions and H2 evolution.

    DOI: https://doi.org/10.2355/tetsutohagane.TETSU-2018-101

  • Effect of Surface Textures of Steel Sheets on the Crystal Orientation of Electrodeposited Zinc Reviewed International journal

    #Honami Kawano, @Satoshi Oue, @Takashi Futaba, @Akinobu Kobayashi, @Yasuto Goto, @Hiroaki Nakano

    ISIJ International   58 ( 11 )   2117 - 2124   2018.11

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

    Prior to electrodeposition, steel sheets underwent polishing using emery paper, buff, and then electro-
    lytic polishing. Zn deposition was performed galvanostatically at 1 500 A/m2

    in an agitated sulfate solution
    at 40°C to investigate the effect of the surface textures of steel sheets on the crystal orientation of Zn.
    The strain of the steel surface and the decrease in Fe grain size due to this strain were largest with emery

    paper polishing, then with buff polishing, then when unpolished, and were smallest after electrolytic pol-
    ishing. The preferred orientation of the {0001} Zn basal plane of the hcp structure was largest with elec-
    trolytic polishing, and decreased in the following order: unpolished, buff polishing, and then with emery

    paper polishing. Thus, the preference of the {0001} orientation of Zn increased with decreasing the strain
    of steel sheets and increasing the grain size of Fe. With electrolytic polishing, the strain applied to the
    steel sheets was decreased, the grain size of Fe increased, and therefore the epitaxial growth of deposited
    Zn occurred easily. The initial Zn deposits appeared to grow epitaxially as indicated by the orientation
    relationship of {111}Fe//{0001}Zn because the preferred orientation of the steel substrate used in this
    study is {111} Fe. The preferred orientation of {0001} Zn seems to be more common under conditions
    where the epitaxial growth of deposited Zn is easy to occur.

    DOI: https://doi.org/10.2355/isijinternational.ISIJINT-2018-429

  • Electrodeposition Behavior of Zn-Polyethyleneimine Composite from Sulfate Solution and Its Micro Structure Reviewed International journal

    #Kousuke Fuchi, @Satoshi Oue, @Yoshiharu Kikuchi, @Shinya Akamatsu, @Yuki Kashiwa, @Hiroaki Nakano

    Materials Transactions   59 ( 11 )   1767 - 1776   2018.11

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

    Electrodeposition of Zn-polyethyleneimine composite was performed at 100­12000 A·m12 and 4.8 © 105 C·m12 in agitated sulfate solutions containing 1.84 mol·dm13 of ZnSO4 and 4 g·dm13 of polyethyleneimine at pH 1.8 and at 313 K: the composite’s deposition behavior and the relevant deposits’ micro-structure were investigated. The films obtained at current densities above 4000 A·m12 from solutions containing polyethyleneimine exhibited gloss, and the gloss was highest for solutions containing polyethyleneimine with the highest molecular weight (70000). The preferred orientation of deposited Zn crystals changed from {0001} to {112"0} and {101"0} in the presence of polyethyleneimine, and the size of the platelet-shaped Zn crystals decreased as the polyethyleneimine molecular weight and current density increased. The deposition of Zn was polarized in the presence of polyethyleneimine, and the degree of polarization increased with the current density and with polyethyleneimine’s molecular weight. The C and N contents in deposited films increased as the polyethyleneimine molecular weight and current density increased, indicating an increase in the tendency of polyethyleneimine to be adsorbed onto the cathode. During deposition, polyethyleneimine buffered somewhat the pH increase in the layer of the electrolyte solution in contact with the cathode. At this time, H+ ions are released from polyethyleneimine because of an increase in pH in the cathode’s vicinity, and consequently, the number of electron lone-pairs in N atoms of polyethyleneimine increased, resulting in an increase in the adsorption ability of polyethyleneimine onto the cathode.

    DOI: doi:10.2320/matertrans.M2018243

  • 硫酸塩浴からの亜鉛—ポリエチレンイミン複合電析挙動とその微細構造 Reviewed

    #渕 浩輔,@大上悟,@菊池義治,@赤松慎也,@柏裕樹,@中野博昭

    日本金属学会誌   82 ( 8 )   281 - 288   2018.8

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

    Electrodeposition Behavior of Zn-Polyethyleneimine Composite from Sulfate Solution and Its Micro Structure

    DOI: doi:10.2320/jinstmet.J2018020

  • Interrupted Interrupted in situ EBSD study of texture evolution and mechanism of surface grains in electroformed Ni after annealing with an initially duplex < 100 > + < 111 > fiber texture during uniaxial tensile deformation Reviewed International journal

    Jiang, K, Nakano, H., Oue, S., Morikawa, T., Li, Z., Tian, W.

    MATERIALS CHARACTERIZATION   141   238 - 247   2018.7

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

    The texture evolution process and mechanism of surface grains in electroformed Ni after annealing with an initially duplex 〈100⟩ + 〈111〉 fiber texture during uniaxial tensile deformation were investigated by using interrupted in situ electron backscattered diffraction. The results showed that the initially duplex 〈100〉 + 〈111〉 fiber texture evolved into the metastable Cube orientation with a weak Cu orientation during the uniaxial tensile deformation. The volume fractions of 〈100〉 and 〈111〉 fiber texture decreased from 54.0% to 29.3% and 16.6% to 6.6%, respectively. The volume of the Cube orientation remained almost stable at 12%, whereas that of the Cu orientation increased from 1% to 2.9%. A simulation of the final preferred orientation based on the Taylor model was a cubic texture, which qualitatively agreed well with the experimental result. The simulated results indicated that the formed Cube and Cu textures evolved from the initial 〈100〉 and 〈111〉 fiber textures, respectively.

    DOI: 10.1016/j.matchar.2018.05.004

  • 電析亜鉛の結晶配向性に及ぼす鋼板表面性状の影響 Invited Reviewed International journal

    河野ほなみ 大上悟 二葉 敬士 小林亜暢 後藤靖人 中野博昭

    104 ( 4 )   41 - 48   2018.4

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

    DOI: DOI : http://dx.doi.org/10.2355/tetsutohagane.TETSU-2017-079

  • Effect of chloride ions in electrowinning solutions on zinc deposition behavior and crystal texture Reviewed

    Keisuke Kashida, Satoshi Oue, Hiroaki Nakano

    Materials Transactions   58 ( 10 )   1418 - 1426   2017.10

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

    To clarify the effect of chloride ions on Zn electrowinning in terms of deposition behavior and crystal texture, the partial polarization curve, current efficiency, and AC impedance for Zn deposition as well as its morphology and crystal orientation were investigated. In solutions containing chloride ions, the partial polarization curve for Zn deposition was evidently depolarized, and the degree of depolarization increased when increasing the concentration of chloride ions from 300 to 6,000 mg/L. The exchange current density i0 for Zn deposition also increased with increasing chloride ion concentration, which indicates that the chloride ions promote the charge-transfer process during Zn deposition. The polarization resistance for Zn deposition measured by AC impedance decreased with increasing chloride ion concentration. Conversely, the capacity of the electric double layer increased with increasing chloride ion concentration from 300 to 1,200 mg/L; however, from 3,000 to 6,000 mg/L, the capacity decreased and approached that obtained from a chloride ion-free solution. On the other hand, the partial polarization curve for hydrogen evolution was almost unchanged by the presence of chloride ions. As a result, the current efficiency of Zn deposition increased by 5–7% and 1.7% in the initial stage of deposition (up until the thickness of Zn reached approximately 2.1 μm) and at 500 A/m2 for 6 hours (482 μm), respectively. With the addition of 300 to 1,200 mg/L of chloride ions, the deposited Zn exhibited a preferred orientation of {0001} plane, and it increased with increasing chloride ion concentration, which is attributed to a decrease in the overpotential for Zn deposition; however, no preferred orientation of a specific plane was shown in the deposits when increasing the concentration of chloride ions above 3,000 mg/L. Some spherical concavities resulting from traces of evolved hydrogen gas were observed on the surface of deposited Zn, and the size of the concavities increased with increasing chloride ion concentration. The size of platelet crystals of the deposited Zn decreased with increasing chloride ion concentration, which indicates that the chloride ions possibly promote the nucleation rate of Zn crystals due to specific adsorption onto the cathode.

    DOI: 10.2320/matertrans.M-M2017827

  • 電解精製浴からの電析銅の表面粗度および均一電着性に及ぼす添加剤の相乗効果 Reviewed

    鈴木 敦博, 大上 悟. 小林繁夫, 中野博昭

    81 ( 7 )   358 - 365   2017.7

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

    DOI: doi:10.2320/jinstmet.J2017015

  • Void nucleation behavior of single-crystal high-purity iron specimens subjected to tensile deformation Reviewed

    Osamu Furukimi, Chatcharit Kiattisaksri, Yuji Takeda, Masatoshi Aramaki, Satoshi Oue, Shinji Munetoh, Masaki Tanaka

    Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing   701   221 - 225   2017.7

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

    Void nucleation plays an important role for determining local deformation properties of ductile materials. In this study, the void nucleation behavior of single-crystal iron was examined in tensile tests. Two micrometer-size single crystals having a different type of slip extracted from electrodeposited pure iron were used to investigate the fracture mechanics during tensile deformation. Scanning electron microscopy (SEM) and high voltage electron microscopy (HVEM) images verified the existence of only a single slip system in the smaller specimen (cross-sectional area A = 16 µm2) and furthermore, no voids were observed. However, multiple slips and voids were observed in the larger specimen (A = 28 µm2). These findings allowed us to reveal that multiple slips are a necessary criterion for void nucleation in single-crystal iron.

    DOI: 10.1016/j.msea.2017.06.084

  • Formation behavior of phosphoric acid-based chemical conversion films containing alkaline earth metals on magnesium alloy Reviewed

    #Akinori Nakamura, Satoshi Oue, Hiroki Koga, Hiroaki Nakano

    Materials Transactions   58 ( 7 )   1007 - 1013   2017.7

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

    The phosphating of Mg alloy was performed in unagitated solutions containing 1 g·dm-3 of Mg, Ca, Sr, and Ba as alkaline earth metals (M) and 50 g·dm-3 of H3PO4 of pH 3 at 40°C for 3 min. The structure and formation behavior of the phosphate films were investigated. The X-ray diffraction patterns of phosphate films broadened irrespective of the type of alkaline earth metal, which was a characteristic of an amorphous structure. XPS analysis revealed that the valence of P in the phosphate films was pentavalent. The pH in the vicinity of the Mg alloy during the phosphating, as measured using an Sb microelectrode, was approximately 10.4, 11.4, 10.7, and 12.0 in the solutions containing Mg, Ca, Sr, and Ba, respectively. This shows that phosphoric acid dissociates to the third stage during the phosphating, and the phosphate films comprising M3(PO4)2 containing an alkaline earth metal are formed. The phosphating was successively performed in two types of solutions containing different alkaline earth metals, and the cross section was analyzed. As a result, it was determined that the new phosphate films were formed at the interface between the Mg alloy substrate and phosphate films, and the previously formed phosphate films were boosted in the films.

    DOI: 10.2320/matertrans.M2016463

  • リサイクルした低品位銅をアノードに用いた銅電解精製におけるアノードの不動態化挙動 Reviewed

    徳重晃大 森康平 大上悟 松島寛 鈴木一成 中野博昭

    資源・素材学会 Journal of MMIJ   133 ( 7 )   165 - 172   2017.7

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

    DOI: https://doi.org/10.2473/journalofmmij.133.165

  • Effect of dissolved impurities on the lightness and surface morphology of nickel deposits from chloride electrowinning solutions Reviewed

    Yuki Sato, Satoshi Oue, Shinichi Heguri, Hiroaki Nakano

    Materials Transactions   58 ( 4 )   606 - 612   2017.4

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

    This study investigated the effect of dissolved impurities on the lightness, surface morphology, and current efficiency of deposited nickel during electrowinning. Nickel electrodeposition was performed at a current density of 300 A·m-2 and 7.2 × 105 C·m-2 of charge in an unagitated chloride solution containing Mn2+, Cr3+, and SO4 2- ion impurities with a pH from 1 to 3, at a temperature of 333 K. Solutions containing 10 g·dm-3 of Mn2+ resulted in a slight decrease in current efficiency for nickel deposition and smaller crystal sizes in the deposited nickel. The lightness of deposited nickel decreased for Mn2+ concentrations exceeding 1 g·dm-3. When nickel deposition was performed using a soluble nickel anode to prevent the formation of MnO2 at the anode, greater nickel lightness resulted than with an insoluble anode, suggesting that MnO2 produced by the insoluble anode caused decreased lightness of nickel. In solutions containing Cr3+, the current efficiency of nickel gradually decreased with increasing Cr3+ concentrations and significantly decreased at Cr3+ concentrations above 0.1 g·dm-3. The lightness of deposited Ni greatly decreased with increasing concentrations of Cr3+ above 0.001 g·dm-3. Formation of Cr(OH)3 at the cathode layer is presumed to suppress nickel deposition, resulting in some codeposition of NiO and Ni(OH)2 along with Ni, which causes the nickel current efficiency and lightness to decrease. Conversely, solutions containing SO4 2- resulted in a moderate decrease in nickel current efficiency at SO4 -2 concentrations above 50 g·dm-3 and a significant decrease above 100 g·dm-3. The lightness of deposited nickel increased slightly at SO4 -2 concentrations of 20 g·dm-3 and strongly increased above 20 g·dm-3. Because the overpotential for nickel deposition increases with the concentration of SO4 2, the surface of the deposited nickel becomes smooth, resulting in greater lightness.

    DOI: 10.2320/matertrans.M2016442

  • Synergistic effect of additives on the surface roughness and throwing power of copper deposited from electrorefining solution Reviewed

    Atsuhiro Suzuki, Satoshi Oue, Shigeo Kobayashi, Hiroaki Nakano

    Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals   81 ( 7 )   358 - 365   2017.1

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

    To elucidate the synergistic effect of gelatin, thiourea and chloride ions on the surface roughness, throwing power and polarization curves for Cu deposition from electrorefining solution, Cu electrodeposition was performed at a current density of 200 A•m-2 and 5×105 C•m-2 of charge in an unagitated sulfate solution containing 0.708 mol•dm-3 of CuSO4 and 2.04 mol•dm-3 of H2SO4 at a temperature of 60°C. In solutions containing three kinds of additives such as gelatin, thiourea and chloride ions, the surface roughness of deposited Cu decreased with increasing the concentration of thiouea and gelatin and decreasing the chloride ions. On the other hand, the throwing power of deposited Cu was improved with decrease in thiourea and increase in gelatin in solutions containing three kinds of additives. The throwing power of deposited Cu was significantly improved in solution containing both gelatin and chloride ions. The polarization resistance dE/di for Cu deposition increased in solution containing both gelatin and chloride ions, which resulting in improvement of throwing power of Cu deposition. As small amounts of thiourea have a depolarization effect on Cu deposition, a leveling effect is expected owing to the promotion of deposition at recesses.

    DOI: 10.2320/jinstmet.J2017015

  • Effects of additives on the surface roughness and throwing power of copper deposited from electrorefining solutions Reviewed

    Atsuhiro Suzuki, Satoshi Oue, Shigeo Kobayashi, Hiroaki Nakano

    Materials Transactions   58 ( 11 )   1538 - 1545   2017.1

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

    To elucidate the synergistic effects of gelatin, thiourea, and chloride ions on the surface roughness, throwing power, and polarization curves for Cu deposition from electrorefining solutions, Cu electrodeposition was performed at a current density of 200 A·m−2 and a charge of 5 × 105 C·m−2 in an unagitated sulfate solution containing 0.708 mol·dm−3 of CuSO4 and 2.04 mol·dm−3 of H2SO4 at a temperature of 60C. In solutions containing all three additives (gelatin, thiourea, and chloride ions), the surface roughness of deposited Cu decreased with increasing thiourea and gelatin concentrations and decreasing chloride ions concentration. On the other hand, the throwing power of deposited Cu improved with decreasing thiourea concentration and increasing gelatin concentration in solutions containing all three additives. The throwing power of deposited Cu was significantly improved in solutions containing both gelatin and chloride ions. The polarization resistance dE/di for Cu deposition increased in solutions containing both gelatin and chloride ions, resulting in an improvement in the throwing power of Cu deposition. As small amounts of thiourea have a depolarization effect on Cu deposition, a smoothing effect is expected to result from the promotion of deposition at recesses.

    DOI: 10.2320/matertrans.M2017215

  • マグネシウム合金へのアルカリ土類金属を含むリン酸系化成処理皮膜の形成挙動 Reviewed

    中村章紀, 大上 悟, 古賀弘毅, 中野 博昭

    日本金属学会   80 ( 11 )   684 - 690   2016.11

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

    The phosphate coating for Mg alloy was performed in the unagitated solutions containing 1 g dm 3 of Mg, Ca, Sr and Ba as alkali earth metal and 50 g dm 3 of H3PO4 of pH 3 and 40 C for 3 min, and the structure and formation behavior of the phosphate films were investigated. The X ray diffraction patterns of phosphate films broadened regardless of the kinds of alkali earth metal, which was a characteristic of an amorphous structure. XPS analysis revealed that the valence of P in the phosphate films was pentavalent. The pH in the vicinity of the Mg alloy during the phosphate coating, as measured using an Sb microelectrode, was approximately 10.4, 11.4, 10.7, 12.0 in the solutions containing Mg, Ca, Sr and Ba, respectively, which shows that the phos- phoric acid dissociates to the third stage during the phosphate coating and the phosphate films composed of M3 PO4 2 containing alkali earth metal M are formed. The phosphate coating were successively performed in the two kinds of solutions containing different alkali earth metals and the cross section was analyzed, as a result, it was suggested that the new phosphate films were formed at the interface between Mg alloy substrate and phosphate films and the previously formed phosphate films were boosted up in films.

    DOI: doi:10.2320 jinstmet.J2016039

  • Wear resistance of Industrial Pure Iron Treated by Nitriding and Quenching Followed by Aging Process Reviewed International journal

    Furukimi Osamu, Hiroki Katafuchi, Masatoshi Aramaki, Muhammad Kozin, Satoshi Oue, Koki Yoshida, I. Narita, Naoya Yamada, Masayuki Yamamoto

    The Japan Society for Heat Treatment   57 ( 9 )   1587 - 1592   2016.9

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: dos:10.2320/matertrans.H-M2016825

  • Effect of Annealing Duration on the Structure and Hardness of Electrodeposited Ni–W Alloys Reviewed International journal

    Shinichiro Hayata, Satoshi Oue, Takehiro Takahashi, Hiroaki Nakano

    ISIJ   56 ( 7 )   1248 - 1255   2016.7

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: http://dx.doi.org/10.2355/isijinternational.ISIJINT-2016-111

  • Electrodeposition of Zn–Zr Oxide Composite from Dispersed-Particle-Free Solution Reviewed International journal

    Hiroaki Nakano, Yosuke Hara, Satoshi Oue

    The Japan Institute of Metals and Materials   57 ( 7 )   1165 - 1170   2016.7

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

    Electrodeposition of Zn–Zr oxide composite from an unagitated sulfate solution containing Zn2+ and Zr ions was investigated at pH 1–2 and at 313 K under galvanostatic conditions. The Zr content was higher in deposits formed from the solution at pH 2 than

    DOI: doi:10.2320 matertrans.M2016084

  • Effect of Initial Ni Plating on the Structure and Hardness of Electrodeposited Ni–W Alloys with and without Annealing Reviewed International journal

    Shinichiro HAYATA, Satoshi Oue, Takehiro TAKAHASHI, Hiroaki Nakano

    ISIJ International   56 ( 6 )   1048 - 1056   2016.6

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: http://dx.doi.org/10.2355/isijinternational.ISIJINT-2016-110

  • Ni-W 合金電析膜の熱処理前後の構造と硬度に及ぼす下地 Ni めっきの影響 Reviewed

    早田慎一朗, 大上 悟, 高橋武寛, 中野 博昭

    鉄と鋼   101 ( 11 )   590 - 597   2015.11

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

    Effect of Initial Ni Plating on the Structure and Hardness of Electrodeposited Ni-W Alloys with and without Annealing

    DOI: http://dx.doi.org/10.2355/tetsutohagane.TETSU-2015-050

  • Ni−W合金電析膜の構造と硬度に及ぼす熱処理時間の影響 Reviewed

    早田慎一朗, 大上 悟, 高橋武寛, 中野 博昭

    鉄と鋼   101 ( 11 )   598 - 604   2015.11

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

    Effect of Annealing Duration on the Structure and Hardness of Electrodeposited Ni-W alloys

    DOI: http://dx.doi.org/10.2355/tetsutohagane.TETSU-2015-051

  • Electrodeposition Behavior of Zn–Fe Alloy from Zincate Solution Containing Triethanolamine Reviewed International journal

    Hiroaki NAKANO, Shingo Arakawa, Satoshi Oue, Shigeo Kobayashi

    56 ( 10 )   1664 - 1669   2015.10

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

    The electrodeposition behavior of Zn­Fe alloys has been investigated at 308K at current densities of 10­500A·m12 and a charge of 5 © 104 C·m12 in an unagitated zincate solution containing triethanolamine, which forms a stable complex with Fe2+ ions. The content of Fe in the deposit changed significantly depending on the current density. At current densities lower than 20A·m12, the content of Fe was approximately 90mass%, that is, the Zn­Fe alloy exhibited normal co-deposition, whereby the electrochemically more noble Fe deposited preferentially. At current densities higher than 100A·m12, however, anomalous co-deposition was observed, whereby the less noble Zn deposited preferentially. The current density at which the Fe content in the deposit changed significantly corresponded to that at which the cathode potential in the total polarization curve abruptly shifted to a less noble region than the equilibrium potential for Zn deposition. Iron deposition and H2 evolution were significantly suppressed by the co-existence of Zn2+ ions in the region of anomalous co-deposition at higher current densities, showing the formation of an inhibitor to deposition arising from Zn2+ ions in the cathode layer. The current efficiency for alloy deposition was not close to zero even in the region of normal co-deposition, and the Fe content in the region of anomalous co-deposition was close to the composition reference line, which shows deposition behavior different from that in sulfate solutions. In the region of normal co- deposition at lower current densities, underpotential deposition of Zn occurred with Fe. TEM analysis revealed that Zn­Fe alloys deposited at lower current densities comprised the stable intermetallic compound Fe5Zn21. The activity coefficient of Zn in the deposit appears to remarkably decrease because of this formation of stable Fe5Zn21.

    DOI: doi:10.2320/matertrans.M2015230

  • Effect of Electrolysis Condition on the Lightness and Surface Morphology of Ni Deposit from Chloride Electro-winning Solutions Reviewed International journal

    Ryo Takahashi, Yuki Sato, Satoshi Oue, Shinichi Heguri, Hiroaki NAKANO

    Materials Transactions   56 ( 8 )   1199 - 1206   2015.8

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

    To investigate the effects of current density and pH of the solution on the lightness and surface morphology of Ni deposit, Ni electrodeposition was performed at a current density of 100 to 500 A·m12 and 7.2 © 105 C·m12 of charge, in an unagitated chloride solution with pH 1 to 3, at 333 K. The composition and structure of the surface of deposits were analyzed by radio frequency glow discharge optical emission spectroscopy and three-dimensional scanning electron microscope (3D-SEM). The lightness of the Ni deposit decreased with increasing pH, and was also related to the current density with the minimum reached at 300A·m12. The concentration of the surface oxygen in the deposits increased with pH, with the highest value obtained at 300 A·m12, which shows that the concentration of surface oxygen possibly affects the lightness. On the other hand, the surface of the Ni deposit was composed of several micrometers of pyramidal microcrystals and the mound formed by the aggregation of pyramidal microcrystals. To separate the two types of structural units, the deposits were cut every 200 nm from the top in the thickness direction using 3D SEM. The number and area of the deposits in the cutting plane were measured and it was found that the lightness of the Ni deposit depended on the surface structure. Therefore, the lightness of the Ni deposit seems to depend on both the surface oxygen content and the microstructure of the deposits.

    DOI: doi:10.2320/matertrans.M2014432

  • 浸窒焼入れ-時効処理した工業用純鉄の耐摩耗特性 Reviewed

    古君 修, 片渕 紘希, 荒牧 正俊, Muhammad Kozin, 大上 悟, 吉田 幸樹, 成田 一人, 山田直矢

    熱処理   2015.6

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

  • マグネシウム合金上でのアルカリ土類金属成分を含む化成皮膜の形成挙動とその構造 Reviewed

    古賀弘毅, 中村章紀, 大上 悟, 中野 博昭

    表面技術   66 ( 3 )   34 - 39   2015.3

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

  • 塩化物系電解採取浴からの電析Niの明度,表面性状に及ぼす電解条件の影響 Reviewed

    高橋 崚, 佐藤祐樹, 大上 悟, 平郡慎一, 中野 博昭

    日本金属学会誌   78 ( 12 )   427 - 433   2014.12

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

    DOI: doi:10.2320/jinstmet.J2014033

  • Ni−W合金電析膜の構造と硬度に及ぼす熱処理の影響 Reviewed

    早田慎一朗, 大上 悟, 中野 博昭, 高橋武寛容

    日本鉄鋼協会   100 ( 11 )   1391 - 1397   2014.11

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

    DOI: DOI : http://dx.doi.org/10.2355/tetsutohagane.100.1391

  • Electrodeposition of Zn–V Oxide Composites from a Strongly Agitated Solution without Dispersed Particles Reviewed International journal

    中野 博昭, 大上 悟, 案浦 康徳, 永井 啓明, 大穂 元人, 福島 久哲

    ISIJ International   54 ( 8 )   1906 - 1912   2014.8

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

    The electrodeposition of a Zn–V oxide composite under galvanostatic conditions from an agitated sul- fate solution without dispersed particles and containing Zn2+ and VO2+ at pH 2 and 313 K was investi- gated. Although the V content in the deposits initially decreased with increasing current density, irrespective of the flow rate of electrolyte, a further increase in the current density resulted in an increase in the V content of the deposits. The curves, which show the relationship between the V content in the deposits and the current density, shifted to the higher-current-density region with increasing flow rate of the electrolyte. Agitation of the electrolyte decreased the V content of the deposits but reduced the seg- regation of V oxide. EDX point analysis of the cross-section of the deposits revealed that the V oxide con- centrated at the surface of the deposits. The polarization curves in 3% NaCl solution revealed that the corrosion potential of the deposited Zn–V oxide films depended on the V content in the deposits, irrespec- tive of the flow rate of electrolyte, and that the corrosion potential shifted toward the more noble direction with the codeposition of V oxide when the V content in the deposits was less than 2 mass%. At V con- tents of <4 mass%, the corrosion current density of the deposits decreased with increasing V content. The corrosion current densities of the deposits obtained from agitated solutions were smaller than those of the deposits obtained from unagitated solutions.

    DOI: http://dx.doi.org/10.2355/isijinternational.54.1906

  • Coloration by Zinc–Nickel Composite Films Electrodeposited from a Chloride Solution Reviewed International journal

    Hiroaki NAKANO, Syota Kataoka, Satoshi Oue, Shigeo Kobayashi

    54 ( 7 )   1661 - 1666   2014.7

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

    Zn–Ni composite films were electrodeposited under coulostatic (515–5145 C⋅m−2) and galvanostatic (5 A⋅m−2) conditions onto brass plates with a Ni precoating in an unagitated chloride solution at 23°C to investigate the color and structure of the deposited films. The chromaticity of the deposited Zn–Ni com- posite films changed in a clockwise direction in each quadrant of the a*b* diagram of the L*a*b* color space with increasing amount of charge. The deposited films contained S, Zn, and Ni, and their content decreased in the order of S > Zn > Ni. X-ray photoelectron spectroscopy revealed that the deposited films were primarily composed of ZnS, ZnO, and Ni and contained small amounts of Zn(OH)2 and Zn. The color of the deposited films is attributed to interference of light, and the index of refraction of the depos- ited films composed of ZnS, ZnO, and Ni is assumed to be large. When Ni was excluded from the elec- trolytic solution, ZnS did not codeposit and the amount of Zn deposited in the metallic state increased. This result suggests that the Ni deposition induces the codeposition of ZnS.

    DOI: DOI: http://dx.doi.org/10.2355/isijinternational.54.1661

  • 電解採取浴からの亜鉛の電析挙動と結晶組織に及ぼすゼラチンとアンチモンの相乗効果事 Reviewed

    山下浩充, 大上 悟, 中野 博昭, 曽我部信義

    資源・素材学会   130 ( 4 )   125 - 131   2014.4

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

  • 分散粒子を含まない溶液からの高流速撹拌下におけるZn-V酸化物複合電析 Reviewed

    中野 博昭, 大上 悟, 案浦康徳, 永井啓明, 大穂元人, 福島 久哲

    日本鉄鋼協会   100 ( 3 )   376 - 382   2014.3

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

    Electrodeposition of Zn-V oxide composite was examined from an agitated sulfate solution without dispersed particles containing Zn2+ and VO2+ at pH 2 and 40 oC under galvanostatic conditions. Although V content in deposits decreased for the moment with increasing current density regardless of flow rate of electrolyte, the further increase in current density brought about the increase in V content in deposits. The curves, which shows the relationship between the V content in deposits and current density, shifted to the higher current density region with increasing flow rate of electrolyte. Agitation of the electrolyte decreased the V content of the deposits but reduced the segregation of V ox- ide. EDX point analysis of cross section of deposits revealed that the V oxide concentrated at the surface of deposits. It was found from the polarization curves in 3% NaCl solution that the corrosion potential of deposited Zn-V oxide films depended on the V content in deposits regardless of the flow rate of electrolyte and it shifted to more noble direction with codeposition of V oxide at V contents in deposits below 2 mass%. At V contents of < 4 mass%, the corrosion current density of deposits decreased with increasing V contents in deposits. The corrosion current densities of deposits obtained from agitated solutions were smaller than that from un-agitated solutions.

  • 電気亜鉛めっき鋼板の外観, 結晶形態に及ぼす有機添加剤予備吸着の影響 Reviewed

    中野 博昭, 浦 高志, 大上 悟, 小林繁夫

    鉄と鋼   99 ( 12 )   700 - 708   2013.12

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

    Zn electrodeposition was performed galvanostatically on a steel sheet at 1500 A/m2 in an agitated sulfate solution at 40oC to investigate the effect of preadsorption of organic additives on the lightness and morphology of Zn. The organic additives preadsorbed were classified into two types: 1) polyethylene glycol (PEG), gelatin and stearyl dimethyl benzyl ammonium chloride (SDBAC) (type I), which exhibit the po- larization effect on Zn deposition ; 2) saccharin and sodium lauryl sulfate (type II) , which exhibit no polarization effect on Zn deposition. The platelet crystals of deposited Zn became small by preadsorption of all kinds of organic additives. The decrease in size of platelet crystals of Zn with the preadsorption is attributed to both the increase in overpotential for Zn deposition and the decrease in epitaxial growth of Zn. The orientation of {0001} Zn basal plane decreased significantly because of an increase in overpotential for Zn deposition by the preadsorp- tion of PEG and gelatin, and the orientation decreased slightly by saccharin and sodium lauryl sulfate in spite of no polarization effect on Zn deposition. The surface roughness of deposited Zn decreased by the preadsorption of organic additives with the exception of SDBAC. This is due to decrease in size of platelet crystals of Zn. The lightness of deposited Zn was increased by the preadsorption of organic additives with the exception of SDBAC. Because Zn deposited ununiformly by the preadsorption of SDBAC, the surface roughness of Zn increased and the lightness decreased.

  • 塩化物浴からの Zn-Ni 複合電析による色彩の発現 Reviewed

    中野 博昭, 片岡 翔太, 大上 悟, 小林繁夫

    鉄と鋼   99 ( 12 )   709 - 715   2013.12

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

    Zn-Ni composite electrodeposition was performed under coulostatic (515-5145C·m–2) and galvanostatic (5A·m–2) conditions on a brass with Ni precoating in an unagitated chloride solution at 23oC to investigate the color and structure of the deposited films. The chromaticity of deposited Zn-Ni composite films changed in a clockwise direction in each quadrant of a*b* diagram of La*b* color space with increasing the amount of charge. The deposited films contained S, Zn and Ni, and the content was in the order of S > Zn > Ni. XPS revealed that the deposited films were composed of ZnS, ZnO and Ni mainly and contained Zn(OH)2 and Zn slightly. The color of deposited films is attributed to interference of light, and the index of refraction of deposited films composed of ZnS, ZnO and Ni is assumed to be large. When the Ni was excluded from the electrolytic solution, ZnS did not codeposit and the deposition of Zn in metallic state increased. This suggests that the Ni deposition induces the codeposition of ZnS.

  • Al-Fe合金の耐孔食性に及ぼす巨大ひずみ加工HPT処理の影響 Reviewed

    中野 博昭, 山口拓人, 山田遥平, 大上 悟, 孫仁俊, 堀田 善治, 古賀弘毅

    日本金属学会誌   77 ( 11 )   489 - 496   2013.11

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

  • Effects of High-Pressure Torsion on the Pitting Corrosion Resistance of Aluminum-Iron Alloys Reviewed International journal

    Hiroaki NAKANO, Hiroto Yamaguchi, Youhei Yamada, Satoshi Oue, In-Joon Son, Zenji Horita, Hiroki Koga

    JOURNAL OF THE JAPAN INSTITUTE OF METALS   77 ( 11 )   2013.11

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.2320/jinstmet.J20130401

  • Electrodeposition Behavior of Zn–Ni alloys from an Alkaline Zincate Solution Containing Ethylenediamine Reviewed International journal

    Hiroaki NAKANO, Shingo Arakawa, Satoshi Oue, Shigeo Kobayashi

    ISIJ international   53 ( 10 )   1869 - 1875   2013.10

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

  • Electrodeposition Behavior of Zn–Co Alloys from an Alkaline Zincate Solution Containing Triethanolamine Reviewed International journal

    Hiroaki NAKANO, Shitoku Shibata, Shingo Arakawa, Satoshi Oue, Shigeo Kobayashi

    ISIJ international   53 ( 10 )   1863 - 1868   2013.10

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

  • Evaluation of harmful effects of impurities in Zn electrowinning solution using cyclic voltammetry International journal

    Hiroaki NAKANO, Satoshi Oue, Hisaaki FUKUSHIMA, Shigeo Kobayashi, Nobuyoshi Sogabe

    Proc. of European Metallurgical Conference 2013 (EMC2013)   2013.6

     More details

    Language:English   Publishing type:Research paper (international conference proceedings)  

  • エチレンジアミンを含むアルカリジンケート浴からのZn-Ni合金電析挙動 Reviewed

    中野 博昭, 荒川真吾, 大上 悟, 小林繁夫

    鉄 と 鋼   99 ( 6 )   425 - 431   2013.6

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

  • トリエタノールアミンを含むアルカリジンケート浴からのZn-Co合金電析挙動 Reviewed

    中野 博昭, 柴田至徳, 荒川真吾, 大上 悟, 小林繁夫

    鉄 と 鋼   99 ( 5 )   346 - 351   2013.5

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

  • 16%Crフェライト単相鋼の局部変形エネルギーとボイド生成挙動 Reviewed

    古君 修, 新垣翔, 山田直矢, 荒牧 正俊, 大上 悟, 船川 義正

    鉄と鋼   99 ( 1 )   60 - 69   2013.1

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

    Tensile tests of 16mass%Cr bearing ferritic steels were performed in order to investigate the effect of the mean interparticle spacing (λ) on the local deformation energy. λ of Cr precipitates was changed from 3. 3 to 5. 1 μm. The amounts of Cr precipitates in the specimens tested were controlled to be the same level. The local deformation energy was increased with increasing λ in the specimens without a notch, while the local deformation energy does not depend on λ for the notched specimens. AsB (Angle selective Backscattered Electron Detector) images of voids beneath the fracture surface showed that the difference of the local deformation energy dependence on λ between notchless and notched specimens was due to the void coalescence processes. This finding reveals that the local deformation energy is influenced by the stress triaxiality through the void coalescence behavior.

    DOI: http://dx.doi.org/10.2355/tetsutohagane.99.60

  • Electrodeposition Behavior of a Zn­Ni Alloy in an Alkaline Zincate Solution Reviewed International journal

    Hiroaki Nakano, Shingo Arakawa, Yuya Takada, Satoshi Oue and Shigeo Kobayashi

    Materials Transactions   53 ( 11 )   2012.11

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

    Electrodeposition behavior of Zn­Ni alloys was investigated at current densities of 10­500 A·m12 and a charge of 5 © 104 C·m12 in an unagitated zincate solution containing triethanolamine, which forms a stable complex with Ni2+ ions at 308 K. At low current densities, the Zn­ Ni alloy exhibited normal codeposition, wherein electrochemically more noble Ni deposited preferentially, while at high current densities, it exhibited anomalous codeposition, wherein less noble Zn deposited preferentially. Ni deposition and H2 evolution were significantly suppressed in the region of anomalous codeposition at higher current densities, showing the formation of an inhibitor for deposition, which results from Zn2+ ions in the cathode layer. In contrast, in the region of normal codeposition at lower current densities, the underpotential deposition of Zn apparently occurred with Ni. Because Zn­Ni alloys are composed of a stable intermetallic compound of Ni5Zn21, the activity coefficient of Zn in the deposit appears to decrease remarkably.

    DOI: 10.2320/matertrans.M2012241

  • 亜鉛電解採取におけるゼラチンの分解に及ぼす各種因子の影響 Reviewed

    中野 博昭, 大上 悟, 成清久純, 曽我部信義, 仁科一彦

    Journal of MMIJ   128 ( 10,11 )   584 - 589   2012.10

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

  • 電解精製浴からの銅電析初期の表面形態および結晶組織に及ぼす添加剤の相乗効果 Reviewed

    中野 博昭, 大上 悟, 西野友朗, 福島 久哲, 小林繁夫

    Journal of MMIJ   590 - 595   2012.10

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

  • アルカリジンケート浴からのZn-Ni合金電析挙動 Reviewed

    中野 博昭, 荒川真吾, 高田裕也, 大上 悟, 小林繁夫

    日本金属学会誌   76 ( 7 )   443 - 448   2012.7

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

    Electrodeposition behavior of Zn-Ni alloys was investigated at current densities of 10 to 500 A m- 2 and at amount of charge of 5 × 10 4 Cm -2 in unagitated zincate solution containing triethanolamine to form a stable complex with Ni 2+ ions at 308 K. At low current densities, the deposition of Zn-Ni alloy showed a normal type codeposition, in which electrochemically more noble Ni deposited preferentially, while at high current densities, it showed an anomalous codeposition, in which less noble Zn deposited preferentially. The Ni deposition and H 2 evolution were significantly suppressed in the region of anomalous codeposition at high current densities, showing the formation of inhibitor of deposition resulting from Zn ions in the cathode layer. In the region of nor-mal codeposition at low current densities, the underpotential deposition of Zn apparently occurred with Ni. Because the Zn-Ni alloys are composed of stable intermetallic compound of Ni 5Zn 21, the activity coefficient of Zn in deposit seems to decrease remarkably. © 2012 The Japan Institute of Metals.

  • Structure of Deposits Obtained from Urea-Based Melt Bath Containing Co and La Reviewed International journal

    Shingo Arakawa, Satoshi Oue, Hiroaki Nakano and Shigeo Kobayashi

    Materials Transactions   53 ( 4 )   2012.4

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

    Electrodeposition was performed in an unagitated solution from a urea-based melt bath containing Co and La under galvanostatic (10­ 40 mA·cm12) and coulostatic (10 C·cm12) conditions at 403 K, and the structure of the deposits was investigated. Co deposited in a metallic state at 10 mA·cm12, whereas it was incorporated into deposits mainly as an oxide at high current densities of 30 and 40 mA·cm12. La codeposited with Co as an oxide irrespective of current density. The content of La2O3 increased with current density. The deposits showed a granular crystal structure and became nonuniform crystals comprising large localized granules at high current densities.

    DOI: 10.2320/matertrans.M2011379

  • 電解精製浴からの電析銅の表面形態及び結晶組織に及ぼす添加剤の相乗効果 Reviewed

    中野博昭, 大上悟, 津山裕史. 福島久哲, 小林繁夫, 富岡賢史

    Journal of MMIJ   127 ( 10, 11 )   2011.10

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

    Synergistic Effect of Addition on Morphology and Texture of Copper Deposited from Electrorefining Solution

  • スルファミン酸浴およびワット浴からの 電析 Ni の硬度に及ぼす有機添加剤の影響 Reviewed

    中野博昭, 辻 英昭, 大上 悟, 福島久哲, 楊 峰,田 文懐

    日本金属学会誌   75 ( 7 )   2011.7

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

    Effect of Organic Additives on the Hardness of Ni Electrodeposited from Sulfamate and Watt's Solutions

  • Sn–Cu Alloy Electrodeposition and Its Connecting Reliability for Automotive Connectors Reviewed International journal

    Hiroaki Nakano, Satoshi Oue, Daisuke Yoshihara, Hisaaki Fukushima, Yoshifumi Saka, Shigeru Sawada and Yasuhiro Hattori

    Materials Transactions   52 ( 6 )   2011.6

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

  • 自動車接点材料用の Sn-Cu 合金電析とその電気的接続性 Reviewed

    中野博昭, 大上 悟, 吉原大介, 福島久哲, 坂 喜文, 澤田 滋, 服部康弘

    日本金属学会誌   75 ( 1 )   2011.1

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

  • スルファミン酸とワット浴からの電析Niの組織・硬度に及ぼす電流密度と有機添加剤の影響 Reviewed

    楊 峰, 田 文懐, 中野博昭, 辻 英昭, 大上 悟, 福島久哲

    日本金属学会誌   74 ( 11 )   2010.11

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

    Effect of Current Density and Organic Additives on the Texture and Hardness of Ni Electrodeposited from Sulfamate and Watt's Solutions

  • 電気亜鉛めっき鋼板の外観,結晶形態に及ぼす ポリエチレングリコール予備吸着の影響 Reviewed

    中野 博昭 大上 悟 濱口 裕介 小林 繁夫 福島 久哲

    鉄と鋼   96 ( 6 )   2010.6

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

    Effect of Preadsorption of Polyethylene Glycol on the Appearance and Morphology of Electrogalvanized Steel Sheets

  • Synergistic Effects of Thiourea, Polymer Additives and Chloride Ions on Copper Electrorefining International journal

    H. Nakano, S. Oue , H. Fukushima, S. Kobayashi and K. Tomioka

    Proc. of Copper 2010 conference, Hamburg   2010.6

     More details

    Language:English   Publishing type:Research paper (international conference proceedings)  

  • 硫酸塩水溶液からのZn-活性金属酸化物の複合電析 Reviewed

    中野博昭, 大上 悟, 福島久哲

    防錆管理   54 ( 5 )   2010.5

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

  • Effect of Current Density and Organic Additives on the Texture and Hardness of Ni Electrodeposited from Sulfamate and Watt's Solutions Reviewed International journal

    Feng Yang, Wenhuan Tian, Hiroaki Nakano, hideaki Tsuji, Satoshi Oue and Hisaaki Fukushima

    Materials Transactions   51 ( 5 )   2010.5

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

  • Electrodeposition of Sn-Ag Alloys and Evaluation of Connection Reliability for Automotive Connectors Reviewed

    Hiroaki Nakano, Satoshi Oue, Masaaki Uranaka, Masataka Masuda, Hisaaki Fukushima, Yoshifumi Saka, Shigeru Sawada and Yasuhiro Hattori

    Materials Transactions   51 ( 4 )   2010.4

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

    Electrodeposition of Sn-Ag Alloys and Evaluation of Connection Reliability for Automotive Connectors

  • Effect of Equal Channel Angular Pressing on the Pitting Corrosion Resistance on the Aluminum Alloys with/without Anodization Reviewed International journal

    Hiroaki Nakano, In-Joon Son, Satoshi Oue, Shigeo Kobayashi, Hisaaki Fukushima and Zenji Horita

    Material Science Forum   2010.4

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

  • Al-Cu合金の耐孔食性に及ぼす強歪み加工ECAP処理の影響 Reviewed

    孫仁俊, 中野博昭, 大上悟, 小林繁夫, 福島久哲, 堀田善治

    表面技術   61 ( 1 )   2010.1

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

    Effect of Equal Channel Angular Pressing on the Pitting Corrosion Resistance of Aluminum-Copper Alloy

  • Effect of Preadsorption of Polyethylene Glycol on the Appearance and Morphology of Electrogalvanized Steel Sheets Reviewed International journal

    Hiroaki Nakano, Satoshi Oue, Yusuke Hamaguchi, Shigeo Kobayashi and Hisaaki Fukushima

    ISIJ International   49 ( 11 )   2009.11

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

  • Pitting Corrosion Resistance of Aluminum Alloys Processed by Equal-Channel Angular Pressing

    H. NAKANO, I.J. SON, S. OUE, S. KOBAYASHI, H. FUKUSHIMA and Z. HORITA

    Proc. of The 11th International Symposium on Materials Science and Engineering between Chonbuk National University and Kyushu University   2009.11

     More details

    Language:English   Publishing type:Research paper (other academic)  

  • Synergistic effect of Polymer additives and Chloride Ions and the degradation of Polymer Additives in Copper Electrorefining International journal

    H. NAKANO, S. OUE, H. KUBOYAMA, H. FUKUSHIMA and Y. HAYASHIBE

    Proc. of Third International Conference on Processing Materials for Properties (PMP-III)   2009.9

     More details

    Language:English   Publishing type:Research paper (international conference proceedings)  

  • Effect of equal-channel angular pressing on pitting corrosion resistance of anodized aluminum-copper alloy Reviewed International journal

    In-Joon SON, Hiroaki NAKANO, Satoshi OUE, Shigeo KOBAYASHI, Hisaaki FUKUSHIMA, Zenji HORITA

    Trans.Nonferrous Met. Soc. China   2009.8

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

  • Effect of Equal Channel Angular Pressing on the Pitting Corrosion Resistance on the Aluminum Alloys with/without Anodization International journal

    H. NAKANO, I.J. SON, S. OUE, S. KOBAYASHI, H. FUKUSHIMA and Z. HORITA

    Proc. of International Conference on Processing & Manufacturing of Advanced Materials (THERMEC’2009)   2009.8

     More details

    Language:English   Publishing type:Research paper (international conference proceedings)  

  • 自動車接点材料用のSn-Ag合金電析とその電気的接続性 Reviewed

    中野博昭 大上 悟 浦中将明 増田正孝 福島久哲 坂 喜文 澤田 滋 服部康弘

    日本金属学会誌   73 ( 8 )   2009.8

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

  • Effect of Continuous Rotation Evolutional Control on the Pitting Corrosion Resistance of Anodized Al-Mg Alloys Reviewed International journal

    Satoshi Oue, Hiroaki Nakano, Daisuke Kurai, Katsuaki Nakamura and Hisaaki Fukushima

    Materials Transactions   2009.8

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

  • 自動車接点材料用のSn-Ag合金電析とその電気的接続性 Reviewed

    中野博昭, 大上悟, 浦中将明, 増田正孝, 福島久哲, 坂善文, 澤田滋, 服部康弘

    日本金属学会誌   2009.8

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

  • Effect of Continuous Rotation Evolutional Control on the Surface Color of Anodized Al-Mg Alloys Reviewed International journal

    Satoshi Oue, Hiroaki Nakano, Daisuke Kurai, Hisaaki Fukushima, Katsuaki Nakamura and Masataka Masuda

    Materials Transactions   2009.7

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

  • Degradation of Polymer Additives during Long-Term Zn Electrowinning International journal

    Hiroaki Nakano, Satoshi Oue, Hisaaki Fukushima, Shigeo Kobayashi and Kazuhiko Nishina

    European Metallurgical Conference 2009 (EMC2009)   2009.6

     More details

    Language:English   Publishing type:Research paper (international conference proceedings)  

  • 陽極酸化Al-Mg合金の耐孔食性に及ぼす連続強ねじり加工の影響 Reviewed

    中野博昭, 孫仁俊, 大原秀樹, 大上悟, 中村克昭, 福島久哲

    日本金属学会誌   2009.5

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

  • 銅の電解精製におけるチオ尿素添加の影響 Reviewed

    久保山宏, 中野博昭, 大上悟, 福島久哲, 小林繁夫

    Journal of MMIJ   2009.2

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

    Effect of Thiourea on Copper Electrorefining

  • Structure and Codeposition Behavior of Ni-W Alloys Electrodeposited from Ammoniacal Citrate Solutions Reviewed International journal

    Satoshi Oue , Hiroaki Nakano, Shigeo Kobayashi and Hisaaki Fukushima

    Journal of The Electrochemical Society   2009.1

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

  • Effect of Annealing on the Pitting Corrosion Resistance of Anodized Aluminum-Magnesium Alloy Processed by Severe Plastic Deformation Reviewed International journal

    In-Joon Son, Hiroaki Nakano, Satoshi Oue, Shigeo Kobayashi, Hisaaki Fukushima and Zenji Horita

    Materials Transactions   2008.12

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

  • Pitting Corrosion Resistance of Anodized Aluminum-Copper Alloy Processed by Severe Plastic Deformation Reviewed International journal

    In-Joon Son, Hiroaki Nakano, Satoshi Oue, Shigeo Kobayashi, Hisaaki Fukushima and Zenji Horita

    Materials Transactions   2008.11

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

  • 銅電解製錬における高分子添加剤の経時劣化の評価 Reviewed

    中野博昭, 大上悟, 藤本敦, 久保山宏, 福島久哲 , 林部豊

    Journal of MMIJ   2008.10

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

    Evaluation of Degradation of Polymer Additive during Long-Term Cu Electrorefining

  • 亜鉛電解採取における高分子添加剤の経時劣化 Reviewed

    中野博昭,大上悟,清水誠一郎,久保山宏, 福島久哲,林

    Journal of MMIJ   2008.9

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

  • Pitting Corrosion Resistance of Anodized Aluminum-Copper and Aluminum-Magnesium Alloys Processed by Equal-Channel Angular Pressing International journal

    In-Joon Son, Hiroaki Nakano, Satoshi Oue, Shigeo Kobayashi, Hisaaki Fukushima and Zenji Horita

    11th International Conference on Aluminum Alloys (ICAA 11), Aachen   2008.9

     More details

    Language:English   Publishing type:Research paper (international conference proceedings)  

  • 陽極酸化Al-Mg合金の電解着色後の色調に及ぼす連続ねじり加工の影響 Reviewed

    大上 悟, 中野博昭, 倉井大輔, 福島久哲, 中村克昭, 増田正孝

    日本金属学会誌   2008.9

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

  • Codeposition Behaviour of Impurities in during Electrogalvanization in Sulfate Baths in the Presence of Fe Ions Reviewed International journal

    Hiroaki Nakano Satoshi Oue Shoji Hisano Shigeo Kobayashi and Hisaaki Fukushima

    ISIJ International   2008.7

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

    Codeposition Behaviour of Impurities in during Electrogalvanization in Sulfate Baths in the Presence of Fe Ions

  • 連続ねじり加工を行ったAl-Mg合金の耐孔食性 Reviewed

    中野博昭 孫仁俊 大原秀樹 大上悟 中村克昭 福島久哲

    表面技術   2008.6

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

    Pitting Corrosion Resistance of Aluminum-Magnesium Alloy Processed with Continuous Rotation Evolutional Control

  • Effects of Small Amounts of Molybdenum Tungsten or Tin Additive on the Morphology and Orientation of Electrodeposited Zinc Reviewed International journal

    Hiroaki Nakano Satoshi Oue Shoichi Taniguchi Shigeo Kobayashi Hisaaki Fukushima

    ISIJ Intertnational   2008.5

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

    Effects of Small Amounts of Molybdenum Tungsten or Tin Additive on the Morphology and Orientation of Electrodeposited Zinc

  • Pitting Corrosion Resistance of Anodized Aluminum-Copper Alloy Processed Bt Severe Plastic Deformation Reviewed

    In-Joon Son, Hiroaki Nakano, Satoshi Oue, Shigeo Kobayashi, Hisaaki Fukushima and Horita Zenji

    日本金属学会誌   2008.5

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

  • 強ひずみ加工を施したAl-Cu合金の陽極酸化膜の耐孔食性 Reviewed

    孫 仁俊 中野博昭 大上 悟 小林繁夫 福島久哲 堀田善治

    日本金属学会   2008.5

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

    Pitting Corrosion Resistance of Aluminum-Copper Alloy Processed by Severe Plastic Deformation

  • Electrodeposition of Composites of Zinc with Vanadium Oxide from Sulfate Solutions Reviewed

    Hiroaki Nakano Satoshi Oue Daisuke Kozaki Shigeo Kobayashi Hisaaki Fukushima

    ISIJ Intertnationa   2008.4

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

    Electrodeposition of Composites of Zinc with Vanadium Oxide from Sulfate Solutions

  • 亜鉛電解採取における電析亜鉛の再溶解挙動に及ぼす不純物の相乗作用 Reviewed

    中野博昭, 大上悟, 野口智子, 福島久哲, 小林繁夫

    Journal of MMIJ   2008.3

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

    Synergistic Effect of Impurities on the Dissolution Behavior of Zn Electrodeposited from Electrowinning Solutions

  • 強ひずみ加工を施したAl-Mg合金の陽極酸化後の耐孔食性に及ぼす熱処理の影響 Reviewed

    孫 仁俊, 中野博昭, 大上 悟, 小林繁夫, 福島久哲, 堀田善治

    日本金属学会誌   2008.1

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

    Effect of Annealing on the Pitting Corrosion Resistance of Anodized Aluminum-Magnesium Alloy Processed by Severe Plastic Deformation

  • 電析Znの結晶形態,配向性に及ぼす浴中へのMo W Snの微量添加の影響 Reviewed

    中野博昭 大上悟 谷口祥一 小林繁夫 福島久哲

    鉄と鋼   2007.12

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

    Effect of a Small Amount of Mo W and Sn Additives on the Morphology and Orientation of Electrodeposited Zn

  • 硫酸塩水溶液からのZn-V酸化物複合電析 Reviewed

    中野博昭 大上悟 神崎大輔 小林繁夫 福島久哲

    鉄と鋼   2007.11

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

    Electrodeposition of Zn-V Oxide Composite from Sulfate Solutions

  • EFFECTS OF SMALL AMOUNTS OF VARIOUS INORGANIC ADDITIVES ON THE MORPHOLOGY AND APPEARANCE OF ZINC ELECTRODEPOSITED ON STEEL SHEETS International journal

    Hiroaki Nakano, Satoshi Oue, Hisaaki Fukushima, Shigeo Kobayashi

    Proceedings of The 7th International Conference on Zinc and Zinc Alloy Coated Steel Sheet (Galvatech’07), Osaka   2007.11

     More details

    Language:English   Publishing type:Research paper (international conference proceedings)  

  • SYNERGISTIC EFFECT OF POLYMER ADDITIVES AND CHLORIDE IONS ON COPPER ELECTROREFINING International journal

    H. Kuboyama, H. Nakano, S. Oue and H. Fukushima and S. Kobayashi

    Copper 2007 conference   2007.8

     More details

    Language:English   Publishing type:Research paper (international conference proceedings)  

  • CODEPOSITION BEHAVIOR OF IMPURITIES IN COPPER ELECTROWINNING FROM CUPROUS CHLORIDE SOLUTION International journal

    H. Nakano, S. Oue and H. Fukushima, S. Kobayashi and Y. Abe

    Copper 2007 conference   2007.8

     More details

    Language:English   Publishing type:Research paper (international conference proceedings)  

  • 不純物を含有した亜鉛電解採取浴における電析亜鉛の再溶解挙動に及ぼすポリエチレングリコール添加の影響 Reviewed

    中野博昭 大上悟 萩本雅久 福島久哲 小林繁夫

    Journal of MMIJ   2007.7

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

    Effect of Polyethylene Glycol on the Dissolution Behavior of Zn Electrodeposited from Impurity-containing Electriwinning Solutions

  • Codeposition Behavior of Impurities During Electrogalvanization in Sulfate Baths in the Presence of Fe Ions Reviewed International journal

    Hiroaki NAKANO, Satoshi OUE, Shoji HISANO, Shigeo KOBAYASHI and Hisaaki FUKUSHIMA

    ISIJ   47 ( 7 )   2007.7

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

  • Effect of Annealing on the Pitting Corrosion Resistance of Anodized Aluminum-Magnesium Alloy Processed by Equal Channel Angular Pressing Reviewed International journal

    In-Joon Son, Hiroaki Nakano, Satoshi Oue, Shigeo Kobayashi, Hisaaki Fukushima and Zenji Horita

    CORROSION SCIENCE AND TECHNOLOGY   6 ( 6 )   2007.6

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

  • Effect of polymer additives on zinc electrowinning International journal

    Hiroaki Nakano, Satoshi Oue, Hisaaki Fukushima and Shigeo Kobayashi

    European metallurgical Conference 2007   2007.6

     More details

    Language:English   Publishing type:Research paper (international conference proceedings)  

  • 銅の電解精製における高分子添加剤と塩化物イオンの相乗効果 Reviewed

    中野博昭 大上 悟 青屋健吾 久保山宏 福島久哲 小林繁夫

    Journal of MMIJ   123 ( 4,5 )   2007.4

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

  • 塩化物系I価銅浴からのCu電析における不純物の共析挙動 Reviewed

    中野博昭 大上悟 山口陽介 前田かおり 木村申平 福島久哲安部吉史

    資源素材学会   2007.1

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

    Codeposition Behaviour of Impurities in Copper Electrowinning from Cuprous Chloride Solution Hiroaki Nakano Satoshi Oue Yosuke Yamaguchi Kaori Maeda Shinpei Kimura Hisaaki Fukushima and Yoshifumi Abe Journal of MMIJ Vol.123 1(2007)pp.33-38.

  • TEM-EDXによる電析Ni-Sn合金の微細構造 Reviewed

    大上悟 中野博昭 黒田亮 小林繁夫 福島久哲

    日本金属学会誌   2006.10

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

    TEM-EDX Observations of the Microstructure of Electrodeposited Ni-Sn Alloys Satoshi Oue Hiroaki Nakano Ryo Kuroda Shigeo Kobayashi Hisaaki Fukushima ISIJ Vol.70 10(2006)pp.804-808.

  • Structure and Polarization Poperties of Zn-Nb Films Formed on Steel Sheet by Sputtering. Reviewed

    Hiroshi Kuboyama Hiroaki Nakano Satoshi Oue Hisaaki Fukushima Masataka Masuda Shunichi Hashimoto

    ISIJ International   2006.8

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

    Structure and Polarization Poperties of Zn-Nb Films Formed on Steel Sheet by Sputtering. Hiroshi Kuboyama Hiroaki Nakano Satoshi Oue Hisaaki Fukushima Masataka Masuda Shunichi Hashimoto ISIJ International Vol.46 8(2006)pp.1205-1209.

  • 鋼板上での電析Znの結晶形態に及ぼすポリエチレングリコール添加の影響 Reviewed

    中野博昭 大上 悟 三木俊幸 小林繁夫福島久哲

    鉄と鋼   2006.8

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

    Effect of Polyethylene Glycol on the Morphology of Zn Electrodeposition on Steel Sheet Hiroaki Nakano Satoshi Oue Toshiyuki Miki Shigeo Kobayashi Hisaaki Fukushima Tetsu-to-Hagane Vol.92 8(2006)pp.33-38.

  • 強ひずみ加工を施したアルミニウム合金の陽極酸化後の耐孔食性 Reviewed

    孫 仁俊 中野博昭 大上 悟 小林繁夫 福島久哲堀田善治

    日本金属学会誌   2006.7

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

    Pitting Corrosion Resistance of Aluminum Alloys Processed by Servere Plastic Deformation after Anodizing In-Joon Son Hiroaki Nakano Satoshi Oue Shigeo Kobayashi Hisaaki Fukushima Zenji Horita The Japan Institute of Metals Vol.70 7(2006)pp.534-540.

  • TEM-EDX Observations of the Microstructure of Electrodeposited Ni-Sn Alloys Reviewed

    Satoshi Oue Hiroaki Nakano Ryo Kuroda Shigeo Kobayashi Hisaaki Fukushima

    Materials Transactions   2006.6

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

    TEM-EDX Observations of the Microstructure of Electrodeposited Ni-Sn Alloys Satoshi Oue Hiroaki Nakano Ryo Kuroda Shigeo Kobayashi Hisaaki Fukushima Materials Transactions Vol.47 6(2006)pp.1550-1554.

  • Pitting Corrosion Resistance of Ultrafine-Grained Aluminum Processed by Servere Plastic Deformation Reviewed

    In-Joon Son Hiroaki Nakano Satoshi Oue Shigeo Kobayashi Hisaaki Fukushima Zenji Horita

    Materials Transactions   2006.4

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

    Pitting Corrosion Resistance of Ultrafine-Grained Aluminum Processed by Servere Plastic Deformation In-Joon Son Hiroaki Nakano Satoshi Oue Shigeo Kobayashi Hisaaki Fukushima Zenji Horita Materials Transactions Vol.47 4(2006)pp.1163-1169.

  • Effect of Polyethylene Glycol on the Morphology of Zn Electrodeposition on Steel Sheet Reviewed

    Hiroaki Nakano Satoshi Oue Toshiyuki Miki Shigeo Kobayashi Hisaaki Fukushima

    ISIJ International   2006.1

     More details

    Language:English   Publishing type:Research paper (scientific journal)  

    Effect of Polyethylene Glycol on the Morphology of Zn Electrodeposition on Steel Sheet Hiroaki Nakano Satoshi Oue Toshiyuki Miki Shigeo Kobayashi Hisaaki Fukushima ISIJ International Vol.46 1(2006)pp.106-110.

  • スパッタリング法により鋼板上に形成されたZn-Nb膜の構造と分極特性 Reviewed

    久保山宏 中野博昭 大上悟 福島久哲 増田正孝橋本俊一

    鉄と鋼   2006.1

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

    Structure and Polarization Property of Zn-Nb Films Formed on Steel Sheet by Sputtering Hiroshi Kuboyama Hiroaki Nakano Satoshi Oue Hisaaki Fukushima Masataka Masuda Shunichi Hashimoto TETSU-TO-HAGANE Vol.92 1(2006)pp.16-20.

  • 強加工により結晶粒を微細化したアルミニウムの耐孔食性 Reviewed

    孫仁俊 中野博昭 大上悟 小林繁夫 福島久哲堀田善治

    日本金属学会誌   2005.10

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

    Pitting Corrosion Resistance of Ultrafine-Grained Aluminum Processed by Servere Plastic Deformation In-Joon Son Hiroaki Nakano Satoshi Oue Shigeo Kobayashi Hisaaki Fukushima Zenji Horita ISIJ Vol.69 10(2005)pp.892-898.

  • 定電流電解重合によるZn上へのポリ2-ビニルピリジン膜の形成 Reviewed

    中野博昭 桑原裕樹 大上 悟 小林繁夫 福島久哲尹 正模

    日本金属学会誌   2005.8

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

    Formation of Poly((2-vinylpyridine) Films on Zn by Galvanostatic Electropolymerization. Hiroaki Nakano Yuki Kuwahara Satoshi Oue Shigeo Kobayashi Hisaaki Fukushima Jeong-Mo Yoon J.Japan Inst.Metals Vol.69 8(2005)pp.780-786.

  • 硫酸塩浴からの変則型Fe-Ni合金電析の機構 Reviewed

    中野博昭 松野昌幸 大上 悟 矢野正明 小林繁夫福島久哲

    日本金属学会誌   2005.7

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

    Mechanism of Anomalous Type Electrodeposition of Fe-Ni Alloys from Sulfate Solutions Hiroaki Nakano Masayuki Matsuno Satoshi Oue Masaaki Yano Shigeo Kobayashi Hisaaki Fukushima J.Japan Inst.Metals. Vol.69 7(2005)pp.548-554.

  • 電析膜の密着性の定量的評価方法の検討-スルファミン酸浴からのNi電析膜の密着性 Reviewed

    中野博昭 大上悟 見汐大樹 西畑義則 福島久哲 津留豊

    表面技術   2005.7

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

    Quantification og Adhesion Property of Electrodeposited Film - Adhesion of Ni Electrodeposited from Sulfamate Solution

  • 電析膜の密着性の定量的評価方法の検討-スルファミン酸浴からのNi電析膜の密着性- Reviewed

    中野博昭 大上悟 見汐大樹 西畑義則福島久哲 津留豊

    表面技術   2005.7

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

    Quantification og Adhesion Property of Electrodeposited Film - Adhesion of Ni Electrodeposited from Sulfamate Solution - Hiroaki Nakano Satoshi Oue Daiki Mishio Yoshinori Nishihata Hisaaki Fukushima Yutaka Tsuru The Surface Finishing Society of Japan Vol.56 7(2005)pp.421-426.

  • 第4級アンモニウム塩を含む水溶液からのめっき用Mg含有Znの電析 Reviewed

    中野博昭,大上悟,小林繁夫,福島久哲,荒賀邦康,奥村和生,茂 博雄

    鉄と鋼   2004.10

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

    Mg-contained Zn Electroplating from Aqueous Solution Containing Quarternary Ammonium Salt
    Hiroaki Nakano Satoshi Oue Shigeo Kobayashi Hisaaki Fukushima Kuniyasu Araga Kazuo Okumura Hiroo Shige
    TETSU-TO-HAGANE
    Vol.90 10(2004)pp.51-56.

  • Fe-Ni合金の変則型電析機構の検討 Reviewed

    中野博昭 大上悟 河野俊輔 矢野雅之 小林繁夫 津留壽昭 福島久哲

    表面技術   2004.6

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

    Mechanism of Anomalous Electrodeposition of Fe-Ni

  • 亜鉛電析の臨界電流密度に及ぼす不純物の相乗作用 Reviewed

    中野博昭 大上悟 野口智子 秋山徹也 福島久哲

    資源と素材   2004.1

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

    Synergistic Effect of Impurities on the Critical Current Density for Zn Deposition
    Hiroaki Nakano Satoshi Oue Tomoko Noguchi Tetsuya Akiyama Hisaaki Fukushima
    Shigen-to-Sozai
    Vol.120 1(2004)pp.39-42.

  • 電析Ni-Sn合金の微細構造 Reviewed

    大上 悟 中野博昭 福島久哲 小林繁夫 秋山徹也

    まてりあ   2003.12

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

    Microstructure of Electrodeposited Ni-Sn Alloy.
    Satoshi Oue Hiroaki Nakano Hisaaki Fukushima Shigeo Kobayashi Tetsuya Akiyama
    Materia Japan
    Vol.42 12(2003)pp.909-909.

  • 銅電解精製における高分子添加剤の影響 Reviewed

    中野博昭,大上悟,大貝猛,泉孝平,秋山徹也,福島久哲

    資源と素材   2003.10

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

    Effects of Polymer Additives on Copper Electrorefining
    Hiroaki Nakano Satoshi Oue Takeshi Ogai Kohei Izumi Tetsuya Akiyama Hisaaki Fukushima
    Shigen-To-Sozai
    Vol.119 10 11(2003)pp.663-667.

  • スルファミン酸Ni浴におけるスルファミン酸イオンの陽極酸化とNi電析に及ぼす影響 Reviewed

    中野博昭,大上 悟,小林繁夫,秋山徹也,福島久哲,久保田 昭,井上 正

    表面技術   2003.8

     More details

    Publishing type:Research paper (scientific journal)  

    Vol.54 8(2003)pp.-.

  • 直鎖状高分子を含む硫酸塩浴からのZn-Cr合金の電析挙動 Reviewed

    中野博昭,大上悟,吉永文隆,秋山徹也,福島久哲

    表面技術   2003.8

     More details

    Publishing type:Research paper (scientific journal)  

    Vol.54 8(2003)pp.-.

  • 第4級アンモニウム塩を含む非懸濁溶液からのZn-Al2O3分散めっき Reviewed

    大上 悟,中野博昭,小林繁夫,秋山徹也,福島久哲,奥村和生

    表面技術   2002.12

     More details

    Publishing type:Research paper (scientific journal)  

    Vol.53 12(2002)pp.920-925.

  • Zn板上への2-ビニルピリジン電解重合膜の形成に及ぼす電解因子の影響 Reviewed

    李 相弼,中野博昭,大上 悟,秋山徹也,福島久哲,尹 正模

    鉄と鋼   2002.9

     More details

    Publishing type:Research paper (scientific journal)  

    Vol.88 9(2002)pp.513-519.

  • Effect of electrolysis factors on crystal orientation and morphology of electrodeposited cobalt Reviewed

    H. Nakano K. Nakahara S. Kawano S. Oue T. Akiyama and H. Fukushima

    Journal of Applied Electrochemistry   32 ( 1 )   43 - 48   2002.1

     More details

    Publishing type:Research paper (scientific journal)  

    Effect of electrolysis factors on crystal orientation and morphology of electrodeposited cobalt
    H. Nakano K. Nakahara S. Kawano S. Oue T. Akiyama and H. Fukushima
    Journal of Applied Electrochemistry
    Vol.32 1(2002)pp.43-48.

    DOI: 10.1023/A:1014219106152

  • 電気Znめっき鋼板の白色度,光沢度に及ぼす浴中への微量無機物添加の影響 Reviewed

    中野博昭,大上悟,岩井正敏,秋山徹也,福島久哲

    鉄と鋼   2000.9

     More details

    Publishing type:Research paper (scientific journal)  

    Vol.86 9(2000)pp.584-590.

  • アンモニア性クエン酸塩浴からの鉄族金属-Wめっきの電析挙動とその皮膜特性 Reviewed

    久保田 昭,田代康則,山崎和彦,中野博昭,大上 悟,小林繁夫,秋山徹也,福島久哲

    鉄と鋼   2000.2

     More details

    Publishing type:Research paper (scientific journal)  

    Vol.86 2(2000)pp.116-122.

  • スルファミン酸浴からのNi電気めっき皮膜の低サイクル疲労特性に及ぼすS共析の影響 Reviewed

    久保田 昭,高田正人,中尾友則,中野博昭,大上 悟,秋山徹也,福島久哲,小野寺龍太

    鉄と鋼   2000.1

     More details

    Publishing type:Research paper (scientific journal)  

    Vol.86 1(2000)pp.38-44.

  • スルファミン酸浴からの連鋳鋳型用Co-Niめっきの電析挙動とその摩耗特性 Reviewed

    久保田 昭 坪田康彦 中野博昭 大上悟 小林繁夫 秋山徹也 福島久哲

    鉄と鋼   1999.10

     More details

    Publishing type:Research paper (scientific journal)  

    Vol.85 10(1999)pp.728-734.

  • Ni-アルミナ分散強化めっきによる機械的特性向上 Reviewed

    久保田昭,中尾友則,大上悟

    三島光産技報   1998.1

     More details

    Publishing type:Research paper (scientific journal)  

    Vol.19 (1998)pp.34-39.

  • 塩化物溶融塩浴からの電析Al-Mn合金の構造 Reviewed

    大上悟 秋山徹也 福島久哲 後藤靖人

    資源と素材   1996.10

     More details

    Publishing type:Research paper (scientific journal)  

    Vol.112 10(1996)pp.729-734.

  • 塩化物溶融塩からのアルミニウムーマンガン合金の電析 Reviewed

    @秋山徹也, @福島久哲, #大上 悟, #牧野良則

    資源と素材   110 ( 2 )   103 - 107   1994.2

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

    The electrodeposition of Al-Mn alloys from the molten chlorides salts was carried out to discuss the funda- mental codeposition behavior.
    The effect of a current density on the alloy composition and on the cathode current efficiency was investi-
    gated. The result shows characteristic feature that the Mn content in the deposits is kept almost constant at relatively lower current densities. At higher current densities, the Mn content in the deposits shifts to reach another constant values which are depended on the bath composition and determined by the limiting current densities of Al and Mn.
    Then, the polarization curves were measured for Al and Al-Mn deposition. Both depositions of Al and Mn from the alloy plating baths occur at the same potential and no potential region where Mn or Al deposited individually is observed. The partial polarization curves for Al deposition show that the potential of Al deposition
    shifts to less noble direction by 70 mV due to the codeposition with Mn.
    Raising temperature promotes the mass transfer of the reactants to increase the limiting current densities
    of Al and Mn. On the other hand, the Mn content of the deposits increases at higher temperatures.

▼display all

Presentations

  • 電解採取浴からの亜鉛の電析挙動に及ぼすハロゲン化物イオンの影響

    #永島 彰人, @大上 悟, @中野 博昭

    資源・素材学会  2020.3 

     More details

    Event date: 2020.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:千葉工業大学   Country:Japan  

    電解採取液からのZn電析挙動に及ぼすハロゲン化物イオン(Cl-, Br-, I-)の影響を明らかにするために,Zn2+ 1.07 mol/L, H2SO41.80 mol/Lの溶液にハロゲン化物イオンを0.01〜0.4 mol/L添加し,浴温45 ℃,攪拌100 rpmにて電解を行い,Zn電析および水素発生の部分分極曲線, 電流効率,交流インピーダンス,電析Znの形態を調査した。ハロゲン化物イオンが共存するとZn電析の部分分極曲線は明らかに復極し,その復極の程度は,I-添加の場合が最も大きく,Cl-, Br-添加では同程度であった。水素発生の部分分極曲線は,ハロゲン化物イオンを共存させると若干復極した。交流インピーダンスより求めたZn電析の分極抵抗は,I-を添加すると最も小さくなり,Cl-, Br-添加による減少は同程度であった。その結果,Zn電析の電流効率は,ハロゲン化物イオンを添加することにより,Zn膜厚2.1μmの電析初期で5〜10%程度増加した。電流効率増加の程度は,I-添加の場合が最も大きく,Cl-, Br-添加で同程度であった。

  • 鋼鈑の水素透過に及ぼすNi電析膜の影響

    #山根達哉, @大上悟, @中野博昭

    表面技術協会  2020.3 

     More details

    Event date: 2020.3

    Language:Japanese  

    Venue:首都大学東京   Country:Japan  

  • マグネシウム合金へのリン酸系化成処理におけるアルカリ土類金属の効果

    古賀弘毅, 中野 博昭, 大上 悟

    表面技術協会  2013.3 

     More details

    Event date: 2013.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:埼玉県 日本工業大学   Country:Japan  

  • 不純物として Fe を含む Al 合金の耐孔食性に及ぼす巨大ひずみ加工 HPT 処理の影響

    山田遥平, 大上 悟, 中野 博昭, 福島 久哲, 小林繁夫

    表面技術協会  2013.3 

     More details

    Event date: 2013.3

    Language:Japanese  

    Venue:埼玉県 日本工業大学   Country:Japan  

  • 濃厚塩化物水溶液からのCr 電析に及ぼすH3BO3の影響

    #中村皓聖,@大上悟,@谷ノ内勇樹,@中野博昭

    西日本腐蝕防蝕研究会  2023.12 

     More details

    Event date: 2023.12

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:九州産業大学   Country:Japan  

  • 黄銅鉱の組織差が酸化浸出挙動に及ぼす影響

    #小森田勝也,@谷ノ内勇樹,@大上悟,@中野博昭

    西日本腐蝕防蝕研究会  2022.12 

     More details

    Event date: 2022.12

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:九州産業大学   Country:Japan  

  • Zn-Zr酸化物電析膜のZr酸化物の分布に及ぼすパルス電解の影響

    #豊國想太, @大上悟, @谷ノ内勇樹, @中野博昭

    西日本腐蝕防蝕研究会  2021.12 

     More details

    Event date: 2022.12

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:オンライン   Country:Japan  

  • H3BO3を含む濃厚CaCl2水溶液からのCrの電析挙動

    #中村皓聖,@大上悟,@谷ノ内勇樹,@中野博昭

    西日本腐蝕防蝕研究会  2022.12 

     More details

    Event date: 2022.12

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:九州産業大学   Country:Japan  

  • 分散粒子を含まない非懸濁浴からのZn-Zr酸化物複合電析膜の微細構造に及ぼすパルス電解の影響

    #豊國想太, @大上悟, @谷ノ内勇樹, @中野博昭

    表面技術協会  2021.9 

     More details

    Event date: 2021.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:オンライン   Country:Japan  

  • Zr-活性金属酸化物電析膜の微細構造に及ぼすパルス電解の影響

    #豊國想太, @大上悟, @谷ノ内勇樹, @中野博昭

    日本金属学会九州支部・日本鉄鋼協会九州支部・軽金属学会九州支部合同学術講演会  2021.6 

     More details

    Event date: 2021.6

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:Zoomによるオンライン開催   Country:Japan  

  • 塩化物浴からの電解鋳造用 Co-Sn 合金の電析挙動

    #小川大樹, @大上悟, @谷ノ内勇樹, @中野博昭

    資源・素材学会九州支部  2021.5 

     More details

    Event date: 2021.5

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:九州大学   Country:Japan  

  • 塩化物浴からの電解鋳造用Co-Sn合金の電析挙動

    #小川大樹, @大上悟, @谷ノ内勇樹, @中野博昭

    資源・素材学会  2021.5 

     More details

    Event date: 2021.5

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:九州大学   Country:Japan  

  • 電解採取浴からの電析Znの電流効率とその微細構造に及ぼす直鎖状高分子添加剤の影響

    #内田 啓太, @大上 悟, @中野 博昭, @福島 久哲

    資源・素材学会  2019.9 

     More details

    Event date: 2019.9

    Language:Japanese  

    Venue:京都大学 桂キャンパス   Country:Japan  

    Zn2+1.07 mol/L, H2SO41.53 mol/Lとなるように実験室にて作製した浴および同組成の操業浴に添加剤として分子量6000のニカワまたはポリエチレングリコール(PEG)を10 mg/L添加し,浴温45 ℃,攪拌100 rpmにてZnの電解採取を行い,ニカワの代替としてPEGを使用できるかどうかを検討した。実験浴,操業浴からのZn電析の電流効率は共にニカワ,PEGを添加すると5%程度低下した。電流効率はPEGを添加した方がニカワを添加するより1〜2%程高くなった。また,操業浴からの方が,実験浴より1〜2%程電流効率が高くなった。操業浴からの電析Znは,添加剤が無いと水素発生痕による孔が生じたが,ニカワ,PEGを添加すると水素発生痕は消失した。PEGを添加するとZnは{1011}面に優先配向する電場配向繊維型の組織となり,ニカワ添加の場合より結晶粒が微細となり表面粗度がより小さくなった。電析Znの結晶構造に及ぼすニカワの影響は,実験浴と操業浴では若干異なったが,PEG添加の影響は浴の種類に関わらずほぼ同一であった。

  • ジンケート浴からの亜鉛の電析挙動とその微細構造に及ぼす有機添加剤の影響

    #福元健太,@大上 悟,@中野博昭,@菊池義治,@赤松慎也

    表面技術協会  2019.9 

     More details

    Event date: 2019.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:福岡工業大学   Country:Japan  

  • 電気Znめっき鋼板の亜鉛と下地鉄の面方位関係に及ぼす鋼板表面性状の影響

    #今谷祐貴, @大上 悟, @中野博昭

    表面技術協会  2019.3 

     More details

    Event date: 2019.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:神奈川大学横浜キャンパス   Country:Japan  

  • 分散粒子を含まない浴からの亜鉛-活性金属酸化物複合電析に及ぼす PEG 添加の影響

    #植田大樹, @大上 悟, @中野博昭

    表面技術協会  2019.3 

     More details

    Event date: 2019.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:神奈川大学横浜キャンパス   Country:Japan  

  • 銅電解精製におけるアノード不動態化に及ぼす電解液流れの影響

    #大原 秀樹, #中西 次郎, #浅野 聡, #渡 健太, #大上 悟, #中野 博昭

    資源・素材学会  2019.3 

     More details

    Event date: 2019.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:千葉工業大学   Country:Japan  

    銅の電解精製におけるアノードの不動態化は、アノード表面への硫酸銅結晶の析出が主原因であるため、不動態 化を抑制するにはアノード表面からの銅イオンの拡散を促進する必要がある。これまで、電解液組成とアノード 組成の最適化を検討してきたが、今回は電解液の流れに着目し、流れの現状解析と最適化を検討した。現状解析 から、電解に伴って発生する自然対流により、電解槽内の電解液濃度分布が不均一になっていることが分 かった。例えば、銅濃度であれば、電極間の上下で約8g/lの濃度差が生じている。これを電解槽への電解液の給液 および排液方法を変更するという強制対流で緩和可能と推定し、ミニチュアの槽を用いて効果を確認できたた め、その内容を報告する。

  • 電解採取浴からの電析Znの電流効率と結晶組織に及ぼす直鎖状高分子添加剤の影響

    #内田啓太, @大上悟, @中野博昭, @小林繁夫

    資源・素材学会  2018.9 

     More details

    Event date: 2018.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:福岡工業大学   Country:Japan  

    Zn2+ 1.07 mol/L, H2SO41.53 mol/Lの溶液に添加剤としてニカワ(分子量6000)またはポリエチレングリコール (PEG,分子量200~35000)を10 mg/L添加し,浴温45°C,攪拌100 rpmにてZnの電解採取を行い,ニカワの 代替としてPEGを使用できるかどうかを検討した。Zn電析の電流効率は,添加剤無添加の場合が最も高く, PEGを 添加した方がニカワを添加するより若干高くなった。Zn析出の部分分極曲線は,PEG,ニカワを添加すると分極 し,その分極の程度は,分子量が同程度であれば,PEGとニカワでほぼ同一であった。PEGについては分子量が低 い方から4000までは分子量の増加に伴い,吸着座が増えることでZn析出に対する分極効果が大きくなるが, 分子 量が4000を超えると,PEG同士の絡まりおよび水溶液への溶解性の低下により,分極効果が低下した。添加剤を 含まない浴では,電析Znの表面には水素発生痕が目立ち, 表面が粗くなった。ニカワまたはPEGを添加すると水素 発生痕はほとんど見られなくなり,表面が平滑になった。ニカワとPEG添加を比較すると,表面粗度はPEG添加の 方が小さくなり,より平滑となった。電析Znの表面粗度,結晶形態に及ぼすPEGの分子量の影響は,特に見られ なかった。

  • 電析法によるインバー型 Fe-Ni合金に関する研究

    @柄本 翔太, @柏 裕樹, @小林 繁夫, #福田 圭祐, @大上 悟, @中野 博昭

    資源・素材学会  2018.9 

     More details

    Event date: 2018.9

    Language:Japanese  

    Venue:福岡工業大学   Country:Japan  

    インバー型Fe-Ni合金は,室温付近の熱膨張係数がFe-Ni合金中で最も小さいため,光学機器,電子通信機 器,シャドーマスク等の精密機器材料として,多くの用途に利用されている。電析法によるFe-Ni合金の作製に は,基板の選定が必要不可欠であるが,溶解鋳造等と違い複雑な面や極小部位での形成が可能であり,膜形成速 度が速く,低温作業であるため消費エネルギーが低いといった大量生産に適した特徴を持っている。しかし,水 溶液からのFe-Ni合金電析は,卑なFeの優先析出が変則型共析の挙動を示すため,一定の組成を持つ合金を安定し て得ることが困難である。本研究では,硫酸浴,ワット型ベース浴およびスルファミン酸浴を基本浴として,浴 組成,添加剤,電流密度等の電解条件,電析合金組成,カソード分極,表面形態および電析合金の内部応力に及 ぼす影響について検討した結果を報告する。

  • アルカリジンケート浴からの亜鉛電析挙動とその微細 構造に及ぼす添加剤の影響

    #福元 健太, @大上 悟, @中野 博昭

    日本金属学会九州支部・日本鉄鋼協会九州支部・日本軽金属学会九州支部  2018.6 

     More details

    Event date: 2018.6

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:北九州国際会議場   Country:Japan  

  • 分散粒子を含まない浴からの Zn-ZrO2複合電析挙動とその微細構造に及ぼす PEG 添加の影響

    #植田 大樹, @大上 悟, @中野 博昭

    日本金属学会九州支部・日本鉄鋼協会九州支部・日本軽金属学会九州支部  2018.6 

     More details

    Event date: 2018.6

    Language:Japanese  

    Venue:北九州国際会議場   Country:Japan  

  • 電気Znめっき鋼板のZn析出挙動,結晶配向性に及ぼす鋼板表面性状の影響

    #今谷 祐貴, @大上 悟, @中野 博昭

    日本金属学会九州支部・日本鉄鋼協会九州支部・日本軽金属学会九州支部  2018.6 

     More details

    Event date: 2018.6

    Language:Japanese  

    Venue:北九州国際会議場   Country:Japan  

  • 電解採取浴からの電析Znの電流効率と結晶組織に及ぼ す直鎖状高分子添加剤と不純物Fe2+の影響

    #内田 啓太, @大上 悟, @中野 博昭

    日本金属学会九州支部・日本鉄鋼協会九州支部・日本軽金属学会九州支部  2018.6 

     More details

    Event date: 2018.6

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:北九州国際会議場   Country:Japan  

  • 分散粒子を含まない浴からの Zn-ZrO2-PEG の複合電析挙動とその微細構造

    #植田大樹, @大上悟, @中野博昭, @小林繁夫

    資源・素材学会九州支部  2018.6 

     More details

    Event date: 2018.6

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:九州大学伊都キャンパス   Country:Japan  

    水溶液中からのZn電析において, Zn皮膜中に Mg, Al, Ti などの標準単極電位が Zn よりも低い活 性金属を Zn 膜中に含有させると耐食性が向上す ることが分かっている。Zr も標準単極電位 E0 が -1.53[V vs.NHE]と, Zn (E0= -0.73[V vs.NHE])より も卑な活性金属であり,Zn 膜中に取り込むことで 耐食性の向上が期待できる。しかし,水溶液中か ら Zr を金属状態で析出させることは困難である ため,本研究では電析時の陰極界面の pH 上昇を 利用して ZrO2+イオンを加水分解させ,そのまま 酸化物として Zn 膜中に取り込むことを検討した。 ポリエチレングリコール(PEG)は,陰極電位を卑 に移行させ,陰極界面の pH を上昇させ ZrO2+イオ ンの加水分解反応を促進させることが期待され る。そこで,本研究では,PEG を添加した溶液に おいて,Zn-ZrO2 の複合電析挙動とその微細構造 を調査した。

  • 電析Zn初期の析出挙動,結晶配向性に及ぼす原板表面性状の影響

    #今谷祐貴, @大上悟, @中野博昭, @小林繁夫

    資源・素材学会九州支部  2018.6 

     More details

    Event date: 2018.6

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:九州大学伊都キャンパス   Country:Japan  

    電気Znめっきは,安価で,犠牲防食により耐食性に優れるため鋼板製品全般にて広く活用されている。通常電気Znめっき鋼板は化成処理を施し,未塗装で用いられることが多い。化成処理後の外観は電析Znの表面形状に左右されるため,その結晶形態を制御することが重要である。電気Znめっきは電気化学プロセスで成膜するため, 電解条件(浴組成, 電流密度等)を変化させることで電析物を容易に制御できる。これは溶融Znめっきと大きく異なる点であり, 特に純Zn電気めっきの場合は電解条件により結晶形態, 配向性が変化し, それに応じて外観, 加工性, 化成処理性が大きく変化する。
    電析Znの結晶形態に及ぼす電解条件,電解液への有機系添加剤の影響に関してはこれまでに多数の研究が行われている。しかし,電析Znの結晶形態に及ぼす鋼板の表面性状の影響については,報告 が少なく不明な点が多い。そこで,本研究では表面性状の異なる種々の実用鋼板上にZnを電析させ,電析Znの析出挙動,結晶配向性に及ぼす鋼板の表面性状の影響を調査した。

  • 低熱膨張型電析 FeーNi インバー合金の形成に及ぼす電解条件の影響

    #福田圭祐,@大上悟,@中野博昭,@柏裕樹,@小林繁夫

    表面技術協会  2018.3 

     More details

    Event date: 2018.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:芝浦工業大学   Country:Japan  

  • 銅電解の不動態化に及ぼすアノード組成の影響およびスライムの観察

    #渡 健太,@大上 悟,@中野博昭,@大原秀樹,@竹田賢二,@浅野 聡

    西日本腐蝕防蝕研究会  2017.12 

     More details

    Event date: 2017.12

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:九州工業大学付属図書館   Country:Japan  

  • 電析銅の表面性状に及ぼす添加剤の相乗効果

    #鈴木敦博,@大上 悟,@中野博昭,@小林繁夫

    西日本腐蝕防蝕研究会  2017.12 

     More details

    Event date: 2017.12

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:九州工業大学付属図書館   Country:Japan  

  • 硫酸塩浴からの亜鉛—ポリエチレンイミンの複合電析挙動とその微細構造

    渕 浩輔, 大上 悟, 中野 博昭, 菊池義治, 赤松慎也

    表面技術協会  2017.9 

     More details

    Event date: 2017.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:金沢工業大学   Country:Japan  

    複合電析は,素材に耐摩耗性,潤滑性,耐食性などの機能を付与することができる。複合電析では,通常,分散材として微粒子を電解液中に懸濁させ,電析の際にその微粒子を皮膜中に取り込む。微粒子は,電解液中で凝集し易いため,電析膜に微細な状態では共析し難く,電解液中で凝集した微粒子が沈降するため製造プロセス上の問題点も多い。そこで本研究では,分散材として,カチオン性の高い水溶性のポリエチレンイミン(以下PEI)を用いて,非懸濁溶液からのZn-PEI複合電析の検討を行った。Zn電析の部分分極曲線,電流効率,電析物の微細構造,耐食性に及ぼすPEI添加の影響について調査した。

  • 低熱膨張型Fe-Niインバー合金の電析挙動

    福田圭祐, 大上 悟, 中野 博昭

    日本金属学会九州支部 日本鉄鋼協会九州支部 軽金属学会九州支部 平成29年度 合同学術講演大会  2017.6 

     More details

    Event date: 2017.6

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:熊本大学黒髪南キャンパス   Country:Japan  

  • 亜鉛-ポリエチレンイミンの複合電析挙動とその結晶組織

    淵浩輔, 大上 悟, 中野 博昭

    日本金属学会九州支部 日本鉄鋼協会九州支部 軽金属学会九州支部 平成29年度 合同学術講演大会  2017.6 

     More details

    Event date: 2017.6

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:熊本大学黒髪南キャンパス   Country:Japan  

  • 低熱膨張型 Fe̶Ni インバー合金の組成に及ぼす電解条件の影響

    福田圭祐, 大上 悟, 中野 博昭, 小林繁夫

    資源・素材学会九州支部  2017.6 

     More details

    Event date: 2017.6

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:熊本大学工学部2号館   Country:Japan  

  • 硫酸浴からのインバー型Fe-Ni 合金電析に関する研究

    長野暢明, 柏裕樹, 小林繁夫, 大上 悟, 中野 博昭

    資源・素材学会九州支部  2017.6 

     More details

    Event date: 2017.6

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:熊本大学工学部2号館   Country:Japan  

  • 亜鉛̶ポリエチレンイミンの複合電析挙動とその微細構造

    渕浩輔, 大上 悟, 中野 博昭, 小林繁夫

    資源・素材学会九州支部  2017.6 

     More details

    Event date: 2017.6

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:熊本大学工学部2号館   Country:Japan  

  • 低品位銅を陽極に用いた銅電解精製における不動態化に及ぼす浴中不純物イオンの影響

    森康平, 大上 悟, 中野 博昭

    資源・素材学会  2017.3 

     More details

    Event date: 2017.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:千葉工業大学津田沼キャンパス   Country:Japan  

    純度78.7%の粗銅をアノードに用いて,浴温60 ℃,無撹拌にてアノード電流密度200 A/m2でCuの電解精製を行い,陽極の不動態化に及ぼす浴中不純物イオンの影響を調査した。また,回転ディスク電極法により,各種不純物存在下における浴中でのCu2+の拡散係数を測定した。不純物イオンとして,Ni2+, As5+, Bi3+が存在すると不動態化が促進されることが分かった。電解後の陽極上のスライム断面をEPMAにて解析したところ,As5+添加浴では,Sb, As, Oの重なり,Bi3+添加浴では,Bi, As, OまたはBi, S, Oの重なりが見られ,それぞれ,SbAsO4, BiAsO4, Bi2(SO4)3の形成が予想された。スライム中に形成されたSbAsO4, BiAsO4, Bi2(SO4)3が,Cu2+イオンの拡散を阻害し,不動態化を促進すると考えられる。一方,Ni2+添加浴では,浴の粘度が上昇し,浴中でのCu2+の拡散係数が低下することが分かった。また,Ni2+が共存するとCuSO4の溶解度が減少した。Ni2+イオンは,スライムの性状に影響を及ぼすこと無く,不動態化を促進した。

  • 電析銅の表面粗度と均一電着性に及ぼす添加剤の相乗効果

    鈴木淳博, 大上 悟, 中野 博昭, 小林繁夫

    資源・素材学会  2016.9 

     More details

    Event date: 2016.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:岩手大学   Country:Japan  

    電析Cuの表面粗度,均一電着性に及ぼすゼラチン,チオ尿素,塩化物イオン添加剤の相乗作用については不明な 点が多い。そこで本研究では,添加剤の濃度を種々変化させて電析Cuの表面粗度,均一電着性に及ぼす添加剤の 相乗効果について調査した。カソードの表面粗度は,添加剤の単独, 複数添加にかかわらずチオ尿素の添加量を増 やすと低下し, 塩化物イオンの添加量を減らすと低下した。ゼラチンは,その濃度を標準条件よりも高くすると粗 度が低下した。標準条件で3種類の添加剤を添加した場合は相乗効果により粗度は低下した。塩化物イオンとゼラ チンが共存すると均一電着性は大きく改善された。また, 3種類の添加剤を添加した場合, チオ尿素の増加は均一電 着性を悪化させるのに対して,ゼラチンの増加は均一電着性を向上させた。標準条件に対して塩化物イオンの濃 度を下げ, かつゼラチンの濃度を上げることでカソードの表面粗度および均一電着性はさらに良くなると考えられ る。

  • 銅電解精製におけるアノード不動態化の抑制

    大原秀樹, 竹田賢二, 浅野聡, 渡健太, 久保文吾, 大上 悟, 中野 博昭, 金子祐輔

    資源・素材学会  2016.9 

     More details

    Event date: 2016.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:岩手大学   Country:Japan  

  • 塩化物浴からのZn-Ni複合電析膜の干渉による色彩の発現

    峯海渡, 大上 悟, 中野 博昭, 小林繁夫

    表面技術協会  2016.9 

     More details

    Event date: 2016.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:東北大学   Country:Japan  

  • Voids Nucleation Behavior of Single Crystal Iron in Tensile Deformation

    C. Kiattisaksri, 竹田祐二, 大上 悟, 荒牧 正俊, 田中 將己, 古君 修

    日本金属学会九州支部・日本鉄鋼協会九州支部・軽金属学会九州支部  2016.6 

     More details

    Event date: 2016.6

    Language:English   Presentation type:Oral presentation (general)  

    Venue:九州大学筑紫キャンパス   Country:Japan  

  • 塩化物浴からのZn-Ni複合電析による色彩の発現

    峯 海渡, 大上 悟, 中野博昭

    日本金属学会九州支部・日本鉄鋼協会九州支部・軽金属学会九州支部  2016.6 

     More details

    Event date: 2016.6

    Language:Japanese  

    Venue:九州大学筑紫キャンパス   Country:Japan  

  • 電解精製浴からの電析銅の表面粗度と 均一電着性に及ぼす添加剤の相乗効果

    鈴木敦博, 大上 悟, 中野博昭

    日本金属学会九州支部・日本鉄鋼協会九州支部・軽金属学会九州支部  2016.6 

     More details

    Event date: 2016.6

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:九州大学筑紫キャンパス   Country:Japan  

  • 低品位銅を陽極に用いた銅電解精製における不動態化に及ぼす塩化物イオンの影響

    山川裕太, 大上 悟, 中野 博昭

    資源・素材学会  2016.3 

     More details

    Event date: 2016.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:東京大学本郷キャンパス   Country:Japan  

    純度78.7%の粗銅をアノードに用いて,浴温60 °C,無撹拌にてアノード電流密度200 A/m2でCuの電解精製を行 い,陽極の不動態化に及ぼす塩化物イオンの影響を調査した。Cl-濃度が0~40 mg/Lの範囲では,約17時間で不 動態化が生じており,Cl-濃度の影響が見られないのに対して,Cl-濃度が100 mg/L以上になると不動態化までの 時間は短くなっており,不動態化に対するCl-イオンの悪影響が認められた。Cl-濃度を400mg/Lと高くすると電解 後のアノード表面に繊維状の組織が見られた。こ

  • 分散粒子を含まない溶液からのZn-Zr酸化物複合電析とその構造

    原洋輔, 大上 悟, 中野 博昭, 小林繁夫

    表面技術協会  2016.3 

     More details

    Event date: 2016.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:早稲田大学西早稲田キャンパス   Country:Japan  

  • 低品位銅をアノードに用いた銅電解精製におけるアノードスライムの構造解析

    山川裕太, 徳重晃大, 大上 悟, 中野 博昭

    資源・素材学会  2015.9 

     More details

    Event date: 2015.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:愛媛大学   Country:Japan  

  • Synergistic Effect of Gelatin and Sb on Deposition Behavior and Texture of Zn in Electrowinning International conference

    Hiroaki NAKANO, Hiromitsu Yamashita, Nobuyoshi Sogabe, Satoshi Oue, Hisaaki FUKUSHIMA

    Pb-Zn 2015  2015.6 

     More details

    Event date: 2015.6

    Language:English   Presentation type:Oral presentation (general)  

    Venue:Dusseldolf   Country:Germany  

    The partial polarization curves for Zn deposition and the morphology, crystal texture, and crystal orientation of the deposited Zn were investigated to elucidate the synergistic effect of gelatin and antimony on the deposition behavior from electrowinning solutions and on the crystal texture of the deposited Zn. Gelatin suppressed both Zn deposition and hydrogen evolution, whereas antimony promoted both. The current efficiency was a maximum in the solution containing both 10 μg/L of antimony and 1 mg/L of gelatin. Although the current efficiency for Zn deposition significantly decreased at low current densities below 200 A/m2 in the solution containing 50 μg/L of antimony, the addition of gelatin significantly reduced the degree of decrease in the current efficiency owing to the presence of antimony. In the solution containing 50 μg/L of antimony, numerous large holes resulting from the foam mark of hydrogen evolution were observed in the deposited Zn; however, the gelatin decreased the size and number of holes. The crystallite size of deposited Zn reduced with increasing concentration of antimony regardless of the presence of gelatin. The surface of the Zn deposited from solutions containing both gelatin and antimony became a smooth layering of small platelet crystals. In solutions containing both gelatin and antimony, 1 mg/L of gelatin formed a fi- brous type of crystals with a preferred orientation of <11 20> and a nonoriented dispersed type of fine crystals, whereas 10 mg/L of gelatin formed a nonoriented dispersed type of significantly fine crystals from the base of Zn deposition to the top. The crystal textures of Zn deposited from solu- tions containing both gelatin and antimony were obviously different from those deposited from so- lutions containing only gelatin or antimony, which demonstrates the synergistic effect of gelatin and antimony on the crystal texture of Zn.

  • 非懸濁溶液からの Zn-ZrO2 複合電析挙動

    原 洋輔, 大上 悟, 中野 博昭, 小林繁夫

    資源・素材学会九州支部講演会  2015.6 

     More details

    Event date: 2015.6

    Language:Japanese  

    Venue:九州大学伊都キャンパス   Country:Japan  

  • 低品位銅をアノードに用いた電解精製における不動態化に及ぼすCl-の影響

    山川裕太, 大上 悟, 中野 博昭

    資源・素材学会九州支部講演会  2015.6 

     More details

    Event date: 2015.6

    Language:Japanese  

    Venue:九州大学伊都キャンパス   Country:Japan  

  • 陰極界面のpH上昇を利用したZn-ZrO2複合電析挙動

    原 洋輔, 大上 悟, 中野 博昭, 小林繁夫

    日本金属学会・日本鉄鋼協会九州支部合同学術講演会  2015.6 

     More details

    Event date: 2015.6

    Language:Japanese  

    Country:Japan  

  • 電解採取浴からの亜鉛電析挙動と結晶組織に及ぼすアンチモン,塩化物イオンの影響

    中野 博昭, 大上 悟

    資源・素材学会  2015.3 

     More details

    Event date: 2015.3

    Language:Japanese  

    Venue:千葉工業大学   Country:Japan  

    Effect of antimony and chloride ions and on the deposition behavior and crystal texture of zinc from electrowinning solution

  • 分散粒子を含まない溶液からのZn-ZrO2複合電析

    原 洋輔, 大上 悟, 中野 博昭, 小林繁夫

    表面技術協会  2015.3 

     More details

    Event date: 2015.3

    Language:Japanese  

    Venue:関東学院大学工学部   Country:Japan  

  • 分散粒子を含まない溶液からのZn-ZrO2複合電析

    原 洋輔, 大上 悟, 中野 博昭, 小林繁夫

    表面技術協会  2015.3 

     More details

    Event date: 2015.3

    Language:Japanese  

    Venue:関東学院大学工学部   Country:Japan  

  • 分散粒子を含まない溶液からのZn-ZrO2複合電析

    原 洋輔, 大上 悟, 中野 博昭, 小林繁夫

    表面技術協会  2015.3 

     More details

    Event date: 2015.3

    Language:Japanese  

    Venue:関東学院大学工学部   Country:Japan  

  • 不純物としてFeを含むAl合金の耐孔食挙動に及ぼす巨大ひずみ加工HPT処理の影響

    山田遥平, 大上 悟, 中野 博昭, 小林繁夫

    西日本腐蝕防蝕研究会/表面技術協会九州支部/腐食防食学会九州支部  2014.12 

     More details

    Event date: 2014.12

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:九州工業大学附属図書館AVホール   Country:Japan  

  • Zn電析の電流効率と表面形態に及ぼす不純物Cl- の影響

    中村紘樹, 大上 悟, 中野 博昭, 小林繁夫

    西日本腐蝕防蝕研究会/表面技術協会九州支部/腐食防食学会九州支部  2014.12 

     More details

    Event date: 2014.12

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:九州工業大学附属図書館AVホール   Country:Japan  

  • 塩化物系電解採取浴からの電析Niの明度, 結晶形態に及ぼす電解因子の影響

    佐藤佑樹, 高橋 崚, 大上 悟, 中野 博昭

    西日本腐蝕防蝕研究会/表面技術協会九州支部/腐食防食学会九州支部  2014.12 

     More details

    Event date: 2014.12

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:九州工業大学附属図書館AVホール   Country:Japan  

  • Zn電解採取の電流効率と カソード表面性状に及ぼす不純物Cl-の影響

    中村紘樹, 大上 悟, 中野 博昭, 福島 久哲, 小林繁夫, 曽我部信義

    資源・素材学会  2014.9 

     More details

    Event date: 2014.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:熊本大学   Country:Japan  

  • 塩化物浴からの電析Niの明度,表面形態に及ぼす電解因子の影響

    佐藤祐樹, 高橋崚, 大上 悟, 中野 博昭

    日本金属学会、日本鉄鋼協会、軽金属学会九州支部合同講演会  2014.6 

     More details

    Event date: 2014.6

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:九州大学伊都キャンパス   Country:Japan  

  • 塩化物系電解採取浴からの電析Niの3D-SEMによる切断面解析

    高橋崚, 佐藤祐樹, 大上 悟, 中野 博昭

    日本金属学会、日本鉄鋼協会、軽金属学会九州支部合同講演会  2014.6 

     More details

    Event date: 2014.6

    Language:Japanese  

    Venue:九州大学伊都キャンパス   Country:Japan  

  • 塩化物系電解採取浴からの電析Niの表面性状に及ぼす電解条件の影響

    高橋崚, 佐藤祐樹, 大上 悟, 中野 博昭

    資源・素材学会  2014.5 

     More details

    Event date: 2014.5

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:九州大学伊都キャンパス   Country:Japan  

  • Zn電解の電流効率と表面性状に及ぼす不純物Cl-の影響

    中村紘樹, 大上 悟, 中野 博昭, 小林繁夫, 曽我部信義

    資源・素材学会  2014.5 

     More details

    Event date: 2014.5

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:九州大学伊都キャンパス   Country:Japan  

  • 塩化物電解採取浴からの電析Niの色調, 結晶構造に及ぼす電解因子の影響

    佐藤祐樹, 高橋 崚, 大上 悟, 中野 博昭

    資源・素材学会  2014.3 

     More details

    Event date: 2014.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:東京大学生産技術研究所   Country:Japan  

  • マグネシウム化成処理膜のクラックと耐食性の関係とそれを改善する浴添加成分の探索

    古賀弘毅, 中村章紀, 大上 悟, 中野 博昭

    表面技術協会  2014.3 

     More details

    Event date: 2014.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:東京理科大学野田キャンパス   Country:Japan  

  • 電気亜鉛めっき鋼板の外観,結晶形態に及ぼす有機添加剤予備吸着の影響

    大上 悟, 浦高志, 中野 博昭, 小林繁夫

    表面技術協会  2014.3 

     More details

    Event date: 2014.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:東京理科大学野田キャンパス   Country:Japan  

  • 硫酸銅浴からのCu 電析に及ぼす界面活性剤の影響

    成田啓明, 小林繁夫, 大上 悟, 中野 博昭

    表面技術協会  2013.9 

     More details

    Event date: 2013.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:福岡工業大学   Country:Japan  

  • 非懸濁水溶液からの亜鉛-活性金属酸化物の複合電析

    中野 博昭, 大上 悟, 福島 久哲

    表面技術協会  2013.9 

     More details

    Event date: 2013.9

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:福岡工業大学   Country:Japan  

  • EBSDを用いた銅の異常電析メカニズム解明の試み

    佐伯功, 石川翔太, 大上 悟

    表面技術協会  2013.9 

     More details

    Event date: 2013.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:福岡工業大学   Country:Japan  

  • Ni-W 合金電析膜の微細構造と硬度に及ぼす熱処理の影響

    早田慎一朗, 大上 悟, 中野 博昭, 小林繁夫

    表面技術協会  2013.9 

     More details

    Event date: 2013.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:福岡工業大学   Country:Japan  

  • マグネシウム合金へのリン酸系化成処理における皮膜析出挙動

    古賀弘毅, 中野 博昭, 大上 悟, 中村章紀

    表面技術協会  2013.9 

     More details

    Event date: 2013.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:福岡工業大学   Country:Japan  

  • Zn電解の電流効率と表面性状に及ぼすゼラチン, Sbの影響

    山下浩充, 大上 悟, 中野 博昭, 福島 久哲, 小林繁夫, 曽我部信義

    資源素材学会  2013.9 

     More details

    Event date: 2013.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:北海道大学高等教育推進機構   Country:Japan  

  • ジンケート浴からのZn-Ni合金電析に及ぼす添加剤の影響

    成田啓明, 小林繁夫, 大上 悟, 中野 博昭

    資源素材学会  2013.9 

     More details

    Event date: 2013.9

    Language:Japanese  

    Venue:北海道大学高等教育推進機構   Country:Japan  

  • Evaluation of Harmful Effects of Impurities in Zn Electrowinning Solution Using Cyclic Voltammetry International conference

    中野 博昭, 大上 悟, 福島 久哲, 小林繁夫

    European Metallurgical Conference 2013 (EMC2013)  2013.6 

     More details

    Event date: 2013.6

    Language:English   Presentation type:Oral presentation (general)  

    Venue:Weimar   Country:Germany  

    In this study, the harmful effects of impurities in Zn electrowinning solution was evaluated using cyclic voltammetry. The voltammograms obtained from solutions containing Cu, Ni, and Sb as impurities showed a shift in potential for hydrogen evolution to the more noble direction and an increase in critical current density for Zn deposition. When the potential of the working electrode was reverted to the more noble direction after Zn deposition, the deposited Zn was found to dissolve. The potential required for initiating the dissolution of Zn was slightly more noble in solutions containing Cu and Ni than that in impurity-free solutions. In solutions containing Cu and Ni, the further shift in potential to the more noble direction after dissolution of Zn caused an abrupt shift in current density toward the reduction side for hydrogen evolution. This is attributed to the deposition of Cu and Ni with lower hydrogen overpotential on the electrode, which determines if the occurrence of impurity deposition is indicated by the voltammogram. Thus, the harmful effects of impurities on the electrowinning of Zn can be evaluated using cyclic voltammetry.

  • 誘導型Ni-W合金電析膜の微細構造と硬度に及ぼす熱処理の影響

    早田慎一朗, 大上 悟, 中野 博昭, 小林繁夫

    2013.6 

     More details

    Event date: 2013.6

    Language:Japanese  

    Venue:熊本県 パレア   Country:Japan  

  • 不純物としてFeを含むAl合金の耐孔食性に及ぼす巨大ひずみ加工による結晶粒微細化の影響

    山田遥平, 大上 悟, 中野 博昭, 堀田 善治, 小林繁夫

    日本金属学会 日本鉄鋼協会 軽金属学会 九州支部  2013.6 

     More details

    Event date: 2013.6

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:熊本県 パレア   Country:Japan  

  • 亜鉛-鉄族金属系電気めっきによる色彩の発現

    片岡翔太, 大上悟, 中野博昭, 小林繁夫

    西日本腐蝕防蝕研究会  2012.12 

     More details

    Event date: 2012.12

    Presentation type:Oral presentation (general)  

    Venue:九州工業大学附属図書館AVホール   Country:Japan  

  • Al 合金の耐孔食性に及ぼす巨大ひずみ加工 HPT 処理の影響

    大上 悟,中野博昭,福島久哲 ,堀田善治,小林繁夫

    表面技術協会  2012.9 

     More details

    Event date: 2012.9

    Presentation type:Oral presentation (general)  

    Venue:北海道 室蘭工業大学   Country:Japan  

  • 電析銅の外観および結晶組織に及ぼす添加剤の相乗効果

    大上 悟, 中野博昭, 福島久哲,小林繁夫

    資源・素材学会  2012.9 

     More details

    Event date: 2012.9

    Presentation type:Oral presentation (general)  

    Venue:秋田大学   Country:Japan  

  • アルカリジンケート浴からの Zn-Ni 合金電析挙動と皮膜構造

    荒川真吾,大上 悟,中野博昭,福島久哲,小林繁夫

    資源素材学会九州支部春季例会  2012.5 

     More details

    Event date: 2012.5

    Presentation type:Oral presentation (general)  

    Venue:九州大学伊都キャンパス   Country:Japan  

  • Zn電解の電流効率と表面性状に及ぼすゼラチン, Sbの影響

    山下浩充,大上 悟,中野博昭,小林繁夫, 曽我部信義, 仁科一彦

    資源素材学会九州支部春季例会  2012.5 

     More details

    Event date: 2012.5

    Presentation type:Oral presentation (general)  

    Venue:九州大学伊都キャンパス   Country:Japan  

  • アルカリジンケート浴からの Zn-Ni 合金電析挙動

    荒川真吾,大上 悟,中野博昭,福島久哲,小林繁夫

    2012.3 

     More details

    Event date: 2012.3

    Presentation type:Oral presentation (general)  

    Venue:東京都市大学世田谷キャンパス   Country:Japan  

  • Examination of ductile fracture mechanism for 0.2%C steels by void observation International conference

    Yoshiyuki Kawaguchi, Naoya Yamada, Masatoshi Aramaki, Satoshi Oue, Masaki Tanaka and Osamu Furukimi

    IFHTSE 19th Congress 2011 (International Federation for Heat Treatment and Surface Engineering)  2011.10 

     More details

    Event date: 2011.10

    Presentation type:Oral presentation (general)  

    Venue:The Grand Central Hotel, Glasgow   Country:United Kingdom  

  • 電析銅の表面形態および結晶組織に及ぼす添加剤の相乗効果

    大上 悟,中野博昭,福島久哲,小林繁夫,富岡賢一

    資源・素材学会  2011.9 

     More details

    Event date: 2011.9

    Presentation type:Oral presentation (general)  

    Venue:大阪府立大学   Country:Japan  

  • 環境調和型ジンケート浴からのZn-Ni 合金電析挙動

    荒川真吾,大上悟,中野博昭小林繁夫

    資源・素材学会  2011.9 

     More details

    Event date: 2011.9

    Venue:大阪府立大学   Country:Japan  

  • Zn-Ni 系電気めっきによる色彩の発現

    片岡翔太,大上悟,中野博昭,小林繁夫

    表面技術協会  2011.9 

     More details

    Event date: 2011.9

    Presentation type:Oral presentation (general)  

    Venue:名古屋大学   Country:Japan  

  • Effect of PEG on Dissolution of Zn Deposited from Impurity-Containing Solutions International conference

    Prof. Dr. Eng. Hiroaki Nakano, Satoshi Oue Prof. Emeritus Dr. Eng. Hisaaki Fukushima, Ass. Prof. Dr. Eng. Shigeo Kobayashi

    Emc(European Metallurgical Conference) 2011  2011.6 

     More details

    Event date: 2011.6

    Presentation type:Oral presentation (general)  

    Venue:Dusseldorf, Germany   Country:Japan  

  • 亜鉛の電解挙動と表面性状に及ぼすα-ニトロソ-β-ナフトール添加の影響

    岩上礼幸, 大上悟, 中野博昭, 福島久哲, 小林繁夫

    日本鉄鋼協会  2011.6 

     More details

    Event date: 2011.6

    Venue:九州大学 筑紫地区 総合研究棟C-Cube   Country:Japan  

  • 尿素系溶融浴におけるCo-La複合電析挙動とその皮膜構造

    荒川真吾, 大上悟, 中野博昭, 小林繁夫

    日本鉄鋼協会  2011.6 

     More details

    Event date: 2011.6

    Venue:九州大学 筑紫地区 総合研究棟C-Cube   Country:Japan  

  • 鉄鋼材料の引張過程におけるボイド生成・進展の角度選択型反射電子顕微鏡観察

    大上 悟 , 川口 慶之 , 山田 直矢 , 荒牧 正俊, 古君 修

    日本顕微鏡学会  2011.5 

     More details

    Event date: 2011.5

    Venue:福岡国際会議場   Country:Japan  

  • 電析物の微細構造

    大上 悟

    HVEM研究会  2011.4 

     More details

    Event date: 2011.4

    Presentation type:Oral presentation (general)  

    Venue:九州異大学伊都キャンパス 工学研究院附属 循環型社会システム工学研究センター (CE40) 多目的セミナー室   Country:Japan  

  • Ni 電鋳膜の組織と硬度に及ぼす有機系添加剤の影響

    大上 悟, 辻 英昭, 中野博昭, 福島久哲, 小林繁夫

    資源・素材学会  2011.3 

     More details

    Event date: 2011.3 - 2011.4

    Presentation type:Oral presentation (general)  

    Venue:東京大学本郷キャンパス   Country:Japan  

  • 陽極酸化Alの正弦波電位掃引法によるNi電解着色後の微細構造観察

    中西広海, 大上 悟, 中野博昭, 福島久哲, 小林繁夫

    表面技術協会  2011.3 

     More details

    Event date: 2011.3

    Presentation type:Oral presentation (general)  

    Venue:関東学院大学金沢八景キャンパス   Country:Japan  

  • 電析銅の表面形態および結晶組織に及ぼす添加剤の相乗効果

    大上悟 中野博昭 福島久哲 小林繁夫 富岡賢一

    資源・素材学会春季講演大会,2011年3月  2011.3 

     More details

    Event date: 2011.3

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • 尿素系溶融体を用いたCo-Laの複合電析

    荒川真吾 大上悟 中野博昭

    材料プロセス談話会,九州支部,2011年3月  2011.3 

     More details

    Event date: 2011.3

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • Zn-Ni系合金電析による色彩の発現

    片岡翔太 大上悟 中野博昭

    材料プロセス談話会,九州支部,2011年3月  2011.3 

     More details

    Event date: 2011.3

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • 電気亜鉛めっき鋼板の外観,結晶形態に及ぼすポリエチレングリコール予備吸着の影響

    中野博昭 大上 悟 福島久哲

    鉄鋼協会第161回春季講演大会,2011年3月  2011.3 

     More details

    Event date: 2011.3

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • SEMを用いた電解析出物の断面観察

    大上悟, 西野友朗, 西畑義則, 中野博昭

    日本顕微鏡学会九州支部学術講演会  2010.12 

     More details

    Event date: 2010.12

    Presentation type:Oral presentation (general)  

    Venue:九州大学馬出キャンパスコラボステーション2F   Country:Japan  

  • 硫酸浴からのCu電析に及ぼす界面活性剤の影響

    有吉勇貴 小林繁夫 大上 悟 中野博昭 田代康典

    西日本腐食防食研究会・表面技術協会九州支部・腐食防食協会九州支部第167回例会,2010年12月  2010.12 

     More details

    Event date: 2010.12

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • 陽極酸化Alの正弦波電位掃引法によるNi電解着色後の組織観察

    中西広海 大上悟, 中野博昭, 福島久哲 小林繁夫

    西日本腐食防食研究会・表面技術協会九州支部・腐食防食協会九州支部第167回例会,2010年12月  2010.12 

     More details

    Event date: 2010.12

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • 高分解能SEMを用いた電析物の微細構造観察

    大上悟

    HVEM研究会  2010.11 

     More details

    Event date: 2010.11

    Presentation type:Oral presentation (general)  

    Venue:九州大学伊都キャンパス稲森記念館C会議室   Country:Japan  

  • 亜鉛電解採取における αニトロソ・β ナフトールの影響

    岩上礼幸, 大上 悟, 中野博昭, 福島久哲, 小林繁夫, 仁科一彦, 曽我部信義

    資源素材学会  2010.9 

     More details

    Event date: 2010.9

    Presentation type:Oral presentation (general)  

    Venue:福岡市西区元岡744 九州大学伊都キャンパス   Country:Japan  

  • ジンケート浴からのZn-Ni合金の電析挙動

    山口和也 小林繁夫 中野博昭 大上 悟 碇 陽介

    資源・素材学会秋季大会,ポスター発表,2010年9月  2010.9 

     More details

    Event date: 2010.9

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • 銅電解精製におけるチオ尿素,ニカワ,塩化物イオンの相乗効果

    西野友朗 大上 悟 中野博昭 福島久哲 小林繁夫

    資源・素材学会秋季大会,ポスター発表,2010年9月  2010.9 

     More details

    Event date: 2010.9

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • 環境調和型Zn-活性金属酸化物の複合電析

    有吉裕貴,大上 悟,中野博昭,福島久哲,小林繁夫

    資源・素材学会秋季大会,ポスター発表,2010年9月  2010.9 

     More details

    Event date: 2010.9

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • Synergistic Effects of Thiourea, Polymer Additives and Chloride Ions on Copper Electrorefining International conference

    Hiroaki Nakano, Satoshi Oue, Hisaaki Fukushima

    Copper 2010  2010.6 

     More details

    Event date: 2010.6

    Presentation type:Oral presentation (general)  

    Venue:Hamburg   Country:Germany  

  • Synergistic Effects of Thiourea, Polymer Additives and Chloride Ions on Copper Electrorefining International conference

    Hiroaki Nakano, Satoshi Oue, Hisaaki Fukushima

    Copper 2010  2010.6 

     More details

    Event date: 2010.6

    Presentation type:Oral presentation (general)  

    Venue:Hamburg   Country:Germany  

  • 高速攪拌下におけるZn-活性金属酸化物の複合電析

    有吉裕貴,大上 悟,中野博昭,福島久哲,小林繁夫

    資源・素材学会九州支部春季例会,2010年6月  2010.6 

     More details

    Event date: 2010.6

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • Ni電鋳膜の組織と硬度に及ぼす有機系添加剤の影響

    大上 悟, 辻 英昭, 中野博昭, 福島久哲, 小林繁夫

    資源・素材学会  2010.3 

     More details

    Event date: 2010.3 - 2010.4

    Presentation type:Oral presentation (general)  

    Venue:東京大学生産技術研究所   Country:Japan  

  • 高速撹拌下におけるZn-活性金属酸化物の複合電析

    有吉裕貴,大上 悟,中野博昭,福島久哲,小林繁夫

    表面技術協会  2010.3 

     More details

    Event date: 2010.3

    Presentation type:Oral presentation (general)  

    Venue:成蹊大学 (東京都武蔵野市吉祥寺北町3-3-1)   Country:Japan  

  • 硫酸塩水溶液からのZn-活性金属(V, Mg, Al)酸化物の複合電析 Invited

    中野博昭 大上悟 福島久哲

    西日本腐食防食研究会・表面技術協会九州支部・腐食防食協会九州支部第165回例会,2010年3月  2010.3 

     More details

    Event date: 2010.3

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • Al合金の耐孔食性に及ぼす強歪み加工ECAP処理の影響

    中野博昭 大上悟 福島久哲

    軽金属学会九州支部講演会,2010年2月  2010.2 

     More details

    Event date: 2010.2

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • Pitting Corrosion Resistance of Aluminum Alloys Processed by Equal-Channel Angular Pressing International conference

    H. NAKANO, I.J. SON, S. OUE, S. KOBAYASHI, H. FUKUSHIMA and Z. HORITA

    Proc. of The 11th International Symposium on Materials Science and Engineering between Chonbuk National University and Kyushu University, pp.19-24, Korea , 2009年11月  2009.11 

     More details

    Event date: 2009.11 - 2009.4

    Presentation type:Oral presentation (general)  

    Country:Korea, Republic of  

  • 陽極酸化Al-Mg合金の電解着色後の色調に及ぼす強ねじり加工の影響

    倉井大輔,大上 悟,中野博昭,福島久哲,小林繁夫

    表面技術協会  2009.9 

     More details

    Event date: 2009.9

    Presentation type:Oral presentation (general)  

    Venue:幕張メッセ 国際会議場   Country:Japan  

  • ボルタンメトリーによる亜鉛電解採取液の不純物の悪影響評価

    梁井広太郎・福島久哲・中野博昭・大上 悟・西畑義則, 九州産業大 小林繁夫,彦島製錬 仁科一彦

    資源・素材学会  2009.9 

     More details

    Event date: 2009.9

    Presentation type:Oral presentation (invited, special)  

    Venue:北海道大学   Country:Japan  

  • 硫酸塩水溶液からのZn-活性金属酸化物の複合電析

    中野博昭 大上 悟 福島久哲

    鉄鋼協会第158回秋季講演大会,2009年9月  2009.9 

     More details

    Event date: 2009.9

    Country:Japan  

  • SYNERGISTIC EFFECT OF POLYMER ADDITIVES AND CHLORIDE IONS AND THEIR DEGRADATION IN COPPER ELECTROREFINNING International conference

    Hiroaki NAKANO, Satoshi OUE, Hiroshi KUBOYAMA, Hisaaki FUKUSHIMA and Yutaka HAYASHIBE

    2009.9 

     More details

    Event date: 2009.9

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • Effect of Equal Channel Angular Pressing on the Pitting Corrosion Resistance of Aluminum Alloys with/without Anodization International conference

    H.Nakano, I. J. Son, S. Oue, S. Kobayashi, H. Fukushima, Z. Horita

    6th International Conference on Processing & Manufacturing of Advanced Materials(Thermec 2009)  2010.5 

     More details

    Event date: 2009.8 - 2010.8

    Presentation type:Oral presentation (general)  

    Venue:Maritim Hotel Berlin   Country:Germany  

    Effect of Equal Channel Angular Pressing on the Pitting Corrosion Resistance of Aluminum Alloys with/without Anodization

  • Effect of Equal Channel Angular Pressing on the Pitting Corrosion Resistance on the Aluminum Alloys with/without Anodization International conference

    Hiroaki Nakano, In-Joon Son, Satoshi Oue, Shigeo Kobayash, Hisaaki Fukushima and Zenji Horita

    Thermec 2009, Berlin, 2009  2009.8 

     More details

    Event date: 2009.8

    Presentation type:Oral presentation (general)  

    Country:Germany  

  • Degradation of Polymer Additives during Long-Term Zn Electrowinning International conference

    H.Nakano, S.Oue, H.Fukushima, S.Kobayashi, K.Nishina

    EMC 2009 European Metallurgical Conference 2009  2009.7 

     More details

    Event date: 2009.7

    Venue:Innsbruck, Austria   Country:Japan  

  • 銅電解精製におけるチオ尿素添加の影響

    久保山宏, 大上 悟, 中野博昭, 福島久哲, 小林繁夫

    資源・素材学会  2009.3 

     More details

    Event date: 2009.3

    Presentation type:Oral presentation (general)  

    Venue:千葉工業大学   Country:Japan  

  • 強ひずみ加工ECAPを施したAl-Cu合金の耐孔食性

    孫 仁俊,大上 悟,中野博昭,福島久哲,小林繁夫

    表面技術協会  2009.3 

     More details

    Event date: 2009.3

    Presentation type:Oral presentation (general)  

    Venue:山梨大学   Country:Japan  

  • 強ひずみ加工ECAPを施したAl-Cu合金の耐孔食性

    孫 仁俊 大上 悟 中野博昭 福島久哲 小林繁夫

    表面技術協会第119回講演大会,2009年3月  2009.3 

     More details

    Event date: 2009.3

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • 自動車接点材料用のCu-Sn合金電析及びその特性

    吉原大介 大上悟 中野博昭 福島久哲 小林繁夫

    材料プロセス談話会,九州支部,2009年3月  2009.3 

     More details

    Event date: 2009.3

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • 連続強ねじり加工を行ったAl-Mg合金の耐孔食性

    大原秀樹 孫仁俊 大上悟 中野博昭 福島久哲 小林繁夫

    西日本腐食防食研究会・表面技術協会九州支部・腐食防食協会九州支部第161回例会,2008年12月  2008.12 

     More details

    Event date: 2008.12

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • 電析Znの結晶形態に及ぼすポリエチレングリコール予備吸着の影響

    濱口裕介 大上悟 中野博昭 福島久哲 小林繁夫

    表面技術協会第118回講演大会,2008年9月  2008.9 

     More details

    Event date: 2008.9

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • Pitting Corrosion Resistance of Anodized Aluminum-Copper and Aluminum-Magnesium Alloys Processed by Equal-Channel Angular Pressing International conference

    In-Joon Son, Hiroaki Nakano, Satoshi Oue, Shigeo Kobayashi, Hisaaki Fukushima and Zenji Horita

    11th International Conference on Aluminum Alloys (ICAA 11), Aachen, pp2066-2072, 2008年9月  2008.3 

     More details

    Event date: 2008.3

    Presentation type:Oral presentation (general)  

    Country:Germany  

  • Al-Cu合金の陽極酸化後の耐孔食性に及ぼす強ひずみ加工の影響

    孫 仁俊 大上 悟 中野博昭 福島久哲 小林繁夫

    2008.3 

     More details

    Event date: 2008.3

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • EFFECTS OF SMALL AMOUNTS OF VARIOUS INORGANIC ADDITIVES ON THE MORPHOLOGY AND APPEARANCE OF ZINC ELECTRODEPOSITED ON STEEL SHEETS International conference

    Hiroaki Nakano, Satoshi Oue, Hisaaki Fukushima Shigeo Kobayashi

    7th Int. Cof. on Zinc and Zinc Alloy Coated Steel Sheet, ISIJ, Osaka, Japan, November, 2007  2007.11 

     More details

    Event date: 2007.11

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • CODEPOSITION BEHAVIOR OF IMPURITIES IN COPPER ELECTROWINNING FROM CUPROUS CHLORIDE SOLUTION International conference

    H. Nakano, S. Oue and H. Fukushima, S. Kobayashi and Y. Abe

    Copper 2007 conference, Toronto, August, (2007), pp507-518  2007.8 

     More details

    Event date: 2007.8 - 2008.8

    Presentation type:Oral presentation (general)  

    Venue:Canada   Country:Canada  

  • SYNERGISTIC EFFECT OF POLYMER ADDITIVES AND CHLORIDE IONS ON COPPER ELECTROREFINING International conference

    H. Kuboyama, H. Nakano, S. Oue and H. Fukushima and S. Kobayashi

    Copper 2007 conference, Toronto, August, (2007)  2007.8 

     More details

    Event date: 2007.8

    Presentation type:Oral presentation (general)  

    Country:Canada  

  • 電析銅の表面形態および結晶組織に及ぼす高分子添加剤の影響

    津山裕史 大上悟・中野博昭・福島久哲 小林繁夫

    資源・素材学会九州支部春季例会,2007年5月  2007.5 

     More details

    Event date: 2007.5

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • 電析銅の表面形態および結晶組織に及ぼす高分子添加剤の影響

    津山裕史 大上悟・中野博昭・福島久哲 小林繁夫

    資源・素材学会九州支部春季例会,2007年5月  2007.5 

     More details

    Event date: 2007.5

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • 溶融塩浴からのAl電析におけるZnおよび Mnの共析挙動

    山口浩史,大上悟,秋山徹也,福島久哲

    日本金属学会・日本鉄鋼協会九州支部共催第90回合同学術講演会(平8,6)  1996.6 

     More details

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • 非晶質Al-Mn合金の電解析出

    大上悟,秋山徹也,福島久哲

    日本金属学会第IV総合分科,九州支部共催研究グループ集会(平8,7)  1996.7 

     More details

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • 塩化物浴からのSn-Ni合金電析挙動

    黒沢恵,大上悟,秋山徹也,福島久哲

    資源・素材学会九州支部春季例会(平8,6)  1996.6 

     More details

    Presentation type:Oral presentation (general)  

    Venue:九州大学   Country:Japan  

  • 電析Ni-Mo,Al-Mn合金の微細構造の観察

    大上 悟,秋山徹也,福島久哲

    日本金属学会第・総合分科,九州支部,東海支部共催宿題テーマ研究会1997年5月  1997.5 

     More details

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • 塩化物溶融塩浴からのAl合金の電析挙動

    大上 悟,秋山徹也,福島久哲

    資源・素材学会素材部門委員会第10回素材開発研究交流会1997年8月  1997.8 

     More details

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • スルファミン酸浴からのNi電析

    土田明憲,内木場健児,小林繁夫,秋山徹也,津留壽昭,大上 悟,福島久哲,久保田昭

    西日本腐食防食研究会表面技術協会九州支部腐食防食協会九州支部第128回例会1997年12月  1997.12 

     More details

    Presentation type:Oral presentation (general)  

    Venue:九州工業大学   Country:Japan  

  • 低温型NaCl-KCl-AlCl3系溶融塩浴の電導度とAl合金の電析挙動

    吉川慎一,山口浩史,大上 悟,福島久哲,秋山徹也

    資源・素材学会九州支部春季例会,1998年5月  1998.5 

     More details

    Presentation type:Oral presentation (general)  

    Venue:九州大学   Country:Japan  

  • Ni-Sn合金電析

    大上 悟,福島久哲,秋山徹也

    資源・素材学会素材部門委員会第11回素材開発研究交流会,1998年8月  1998.8 

     More details

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • スルファミン酸浴からのNi電析

    土田明憲,小林繁夫,津留壽昭,秋山徹也,福島久哲,大上 悟,久保田昭

    資源・素材関係学協会合同秋季大会,1998年11月  1998.11 

     More details

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • スルファミン酸浴からのCo-Ni合金の電析挙動とその特性

    中野博昭,久保田昭,福島久哲,大上悟,秋山徹也,小林繁夫

    資源・素材学会春季講演大会,1999年3月  1999.12 

     More details

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • スルファミン酸浴からのNi電気めっき皮膜の低サイクル疲労特性に及ぼすS共析の影響

    久保田昭,中尾友則,高田正文,中野博昭,大上悟,福島久哲,秋山徹也

    西日本腐食防食研究会・表面技術協会九州支部・腐食防食協会九州支部第134回例会,1999年12月  1999.12 

     More details

    Presentation type:Oral presentation (general)  

    Venue:九州工業大学   Country:Japan  

  • スルファミン酸浴からのCo-Ni合金の電析挙動と諸特性

    久保田昭,坪田康彦,中野博昭,大上悟,福島久哲,小林繁夫,秋山徹也

    西日本腐食防食研究会・表面技術協会九州支部・腐食防食協会九州支部第135回例会,2000年3月  2000.3 

     More details

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • Zn板上へのビニル系電解還元重合膜の膜形成に及ぼす電解条件の影響

    李相弼,大上悟,中野博昭,秋山徹也,福島久哲

    表面技術協会第102回講演大会,2000年9月  2000.9 

     More details

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • スルファミン酸浴からのNi電析膜の特性に及ぼす陽極生成物の影響

    洗川智洋,大上悟,中野博昭,福島久哲,秋山徹也,久保田昭,田代康典

    西日本腐食防食研究会・表面技術協会九州支部・腐食防食協会九州支部第137回例会,2000年12月  2000.12 

     More details

    Presentation type:Oral presentation (general)  

    Venue:九州工業大学   Country:Japan  

  • 鋼板へのMg含有電気Znめっきに及ぼす有機添加剤の影響

    奥村和生,茂博雄,福島久哲,中野博昭,大上悟,秋山徹也

    鉄鋼協会第141回春季講演大会,2001年3月  2001.3 

     More details

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • 連鋳用銅モールド上に電析させたNi膜の硬度に及ぼす共析Sの影響

    大上悟,中野博昭,福島久哲,秋山徹也,田代康典,久保田昭

    鉄鋼協会第141回春季講演大会,2001年3月  2001.3 

     More details

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • 硫酸塩浴および塩化物浴からの電析Coの結晶配向性と表面性状

    河野俊輔,大上悟,中原賢治,中野博昭,秋山徹也,福島久哲

    資源・素材学会九州支部春季例会,2001年6月  2001.6 

     More details

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • 非懸濁溶液からのZn-Al系分散皮膜の電析

    庄野孝一,小林繁夫,津留壽昭,秋山徹也,大上悟,中野博昭,福島久哲,奥村和生,茂博雄

    鉄鋼協会第142回秋季講演大会,2001年9月  2001.9 

     More details

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • 水溶液からの電析Co膜の結晶配向性と表面性状

    河野俊輔,大上悟,中原賢治,中野博昭,秋山徹也,福島久哲

    表面技術協会第104回講演大会,2001年9月  2001.9 

     More details

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • 銅電解精製における高分子添加剤の吸着能および経時劣化の評価

    尾崎祐介,大貝猛,大上悟,中野博昭,福島久哲,秋山徹也,

    資源・素材学会春季大会,2002年3月  2002.3 

     More details

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • ゼラチン添加浴からのZn-Cr合金の電析

    吉永文隆,大貝猛,大上悟,中野博昭,福島久哲,秋山徹也

    西日本腐食防食研究会・表面技術協会九州支部・腐食防食協会九州支部第140回例会,2001年12月  2001.12 

     More details

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • 水溶液からのZn-Mg合金電析の可能性

    芦塚康佑,大上悟,中野博昭,福島久哲,秋山徹也

    資源・素材学会九州支部春季例会,2002年6月  2002.6 

     More details

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • 電析Co-P磁性合金薄膜の構造と磁気特性に与えるパルス電解の影響

    山口陽介,大上悟,中野博昭,福島久哲,秋山徹也

    日本金属学会・日本鉄鋼協会九州支部合同学術講演会,2002年6月  2002.6 

     More details

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • 金属間接合を利用した電析膜の密着性評価方法の検討

    見汐大樹,大上悟,中野博昭,福島久哲,秋山徹也,津留豊

    表面技術協会第106回講演大会,2002年9月  2002.9 

     More details

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • 亜鉛電析の臨界電流密度に及ぼす不純物の相乗効果

    野口智子,大上悟,中野博昭,福島久哲,秋山徹也

    資源・素材学会秋季大会,2002年9月  2002.9 

     More details

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • 第4級アンモニウム塩を含む非懸濁溶液からのZn-Al2O3分散めっき膜の微細構造

    黒田亮,大上悟,中野博昭,福島久哲,秋山徹也,奥村和生

    鉄鋼協会第144回秋季講演大会,ポスターセッション,2002年11月  2002.11 

     More details

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • 電析Ni-Sn合金めっき皮膜の微細構造

    大上悟,中野博昭,福島久哲,金子賢治,友清芳二,小林繁夫,秋山徹也

    第44回日本(電子)顕微鏡学会九州支部総会・学術講演会,講演,2002年11月30日  2002.11 

     More details

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • 定電流電解法によるZn上への2-ビニルピリジン重合膜の形成

    桑原裕樹,大上悟,中野博昭,福島久哲,秋山徹也

    西日本腐食防食研究会・表面技術協会九州支部・腐食防食協会九州支部第143回例会,2002年12月  2002.12 

     More details

    Presentation type:Oral presentation (general)  

    Venue:九州工業大学   Country:Japan  

  • 電析Ni-Sn合金の微細構造に及ぼす電解条件の影響

    黒田亮,大上悟,中野博昭,福島久哲,秋山徹也

    材料プロセス談話会,九州支部,2003年1月  2003.1 

     More details

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • Ni-Sn合金の電析挙動と微細構造

    黒田亮,大上悟,中野博昭,福島久哲,金子賢治,秋山徹也

    資源・素材学会春季大会,2003年3月  2003.3 

     More details

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • Zn上への2-ビニルピリジン電解重合膜の形成に及ぼす通電方法の影響

    林啓一,大上悟,中野博昭,福島久哲,秋山徹也

    資源・素材学会春季大会,2003年3月  2003.3 

     More details

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • 銅電解精製における高分子添加剤の効果

    大上悟,中野博昭,秋山徹也,福島久哲

    資源・素材学会九州支部春季例会,2003年5月  2003.5 

     More details

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • 水溶液からの亜鉛ーアルミナ複合物の電析

    大上悟,中野博昭,秋山徹也,福島久哲

    資源・素材学会秋季大会,2003年9月  2003.9 

     More details

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • 銅電解精製における塩化物イオンと高分子添加剤の相乗効果

    青屋健吾,大上悟,中野博昭,秋山徹也,福島久哲

    資源・素材学会秋季大会,2003年9月  2003.9 

     More details

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • Effects of polymer additives on copper electrorefining International conference

    H. Nakano, S. Oue, H. Fukushima, T. Ohgai and T. Akiyama

     Copper 2003-Cobre 2003 conference, Chile, December, 2003  2003.12 

     More details

    Presentation type:Oral presentation (general)  

    Country:Chile  

  • 塩化物系一価銅浴からの銅電析におけるAgの共析挙動

    山口陽介,大上悟,中野博昭,福島久哲,秋山徹也

    西日本腐食防食研究会・表面技術協会九州支部・腐食防食協会九州支部第146回例会,2003年12月  2003.12 

     More details

    Presentation type:Oral presentation (general)  

    Venue:九州工業大学   Country:Japan  

  • Zn電析の再溶解挙動に及ぼす不純物の相乗作用

    野口智子,大上悟,中野博昭,福島久哲,秋山徹也

    西日本腐食防食研究会・表面技術協会九州支部・腐食防食協会九州支部第146回例会,2003年12月  2003.12 

     More details

    Presentation type:Oral presentation (general)  

    Venue:九州工業大学   Country:Japan  

  • 電解重合膜の形成に及ぼす電解条件の影響

    林啓一,大上悟,中野博昭,福島久哲,小林繁夫

    材料プロセス談話会,九州支部,2004年1月  2004.1 

     More details

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • Ni-Sn電析物の微細構造TEM観察

    黒岩良之,大上悟,中野博昭,福島久哲,小林繁夫

    表面技術協会第109回講演大会,2004年3月  2004.3 

     More details

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • AFMによる亜鉛電析過程の観察

    久野彰士,大上悟,中野博昭,福島久哲,小林繁夫

    表面技術協会第109回講演大会,2004年3月  2004.3 

     More details

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • 塩化物系一価銅浴からの銅電析における不純物の共析挙動

    前田かおり,大上悟,中野博昭,福島久哲,小林繁夫

    資源・素材学会春季大会,2004年3月  2004.3 

     More details

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • 電析Znの再溶解挙動に及ぼす不純物および有機添加剤の影響

    萩本雅久,大上悟,中野博昭,福島久哲,小林繁夫

    資源・素材学会春季大会,2004年3月  2004.3 

     More details

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • スパッタリング法によるZn-Nb被覆鋼板の作製

    久保山宏,大上悟,中野博昭,福島久哲,小林繁夫

    資源・素材学会九州支部春季例会,2004年5月  2004.5 

     More details

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • スパッタリング法による鋼板へのZn-Nb成膜

    久保山宏,大上悟,中野博昭,小林繁夫,福島久哲,橋本俊一

    表面技術協会第110回講演大会,2004年9月  2004.9 

     More details

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • 銅電解におけるハロゲン化物イオンと高分子添加剤の相乗効果

    青屋健吾,大上悟,中野博昭,小林繁夫,福島久哲

    資源・素材学会秋季大会,2004年9月  2004.9 

     More details

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • 塩化物浴からの電析Ni-S金属間化合物の微細構造

    黒岩良之,大上悟,中野博昭,福島久哲,小林繁夫

    鉄鋼協会第148回秋季講演大会,ポスターセッション,2004年9月  2004.9 

     More details

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • 有機添加剤を含む浴からの電析Zn成長過程のAFM観察

    久野彰士,大上悟,中野博昭,福島久哲,小林繁夫

    鉄鋼協会第148回秋季講演大会,ポスターセッション,2004年9月  2004.9 

     More details

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • Fe不純物を含有した浴からのZn電析における微量無機不純物の共析挙動

    久野彰士,大上 悟,中野博昭,福島久哲,小林繁夫

    西日本腐食防食研究会・表面技術協会九州支部・腐食防食協会九州支部第149回例会,2004年12月  2004.12 

     More details

    Presentation type:Oral presentation (general)  

    Venue:九州工業大学   Country:Japan  

  • アルミニウムの陽極酸化皮膜生成に関する基礎的研究

    福本高宏,小林繁夫,津留寿昭,大上 悟,福島久哲,岡崎正男,神田勝美

    西日本腐食防食研究会・表面技術協会九州支部・腐食防食協会九州支部第149回例会,2004年12月  2004.12 

     More details

    Presentation type:Oral presentation (general)  

    Venue:九州工業大学   Country:Japan  

  • Zn電析におけるFeとその他の不純物の共析挙動

    久野彰士,大上 悟,中野博昭,福島久哲,小林繁夫

    材料プロセス談話会,九州支部,2005年1月  2005.1 

     More details

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • Al合金の耐孔食性に及ぼす強加工による結晶粒微細化の影響

    孫仁俊,大上悟,中野博昭,小林繁夫,堀田善治,福島久哲

    表面技術協会第111回講演大会,2005年3月  2005.3 

     More details

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • 塩化物系一価銅浴からの銅電析における不純物の共析挙動

    木村申平,大上悟,中野博昭,福島久哲,小林繁夫,安部吉史

    資源・素材学会春季大会,2005年3月  2005.3 

     More details

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • ECAP処理したAl合金の耐孔食性

    孫仁俊,大上悟,中野博昭,福島久哲,小林繁夫

    資源・素材学会九州支部春季例会,2005年5月  2005.5 

     More details

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • 亜鉛電解採取における直鎖状高分子添加剤の経時劣化

    清水誠一郎,大上悟,中野博昭,福島久哲,小林繁夫

    資源・素材学会九州支部春季例会,2005年5月  2005.6 

     More details

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • Alの耐食性に及ぼす強加工の影響

    孫仁俊,大上悟,中野博昭,福島久哲,小林繁夫

    日本金属学会・日本鉄鋼協会九州支部合同学術講演会,2005年6月  2005.6 

     More details

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • スパッタリング法によるZn-Nb膜の構造と耐食性

    久保山宏,大上悟,中野博昭,福島久哲

    日本金属学会・日本鉄鋼協会九州支部合同学術講演会,2005年6月  2005.6 

     More details

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • Effect of Equal-Channel Angular Pressing on the Pitting Corrosion Resistance of Al Alloy International conference

    In-Joon Son, Hiroaki Nakano, Satoshi Oue, Shigeo Kobayashi, Hisaaki Fukushima and Zenji Horita

    Proceedings of NanoSPD 3, Fukuoka, pp.-, September, 2005  2005.9 

     More details

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • 亜鉛電解採取における高分子添加剤の経時劣化

    清水誠一郎,大上悟,中野博昭,福島久哲,小林繁夫

    資源・素材学会秋季大会,2005年9月  2005.9 

     More details

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • Fe不純物を含有した浴からのZn電析における微量無機不純物の共析挙動

    谷口祥一,大上 悟,中野博昭,福島久哲,小林繁夫,久野彰士

    鉄鋼協会第150回秋季講演大会,ポスターセッション,2005年  2005.10 

     More details

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • 強ひずみ加工処理したAlの耐孔食性

    孫仁俊,大上悟,中野博昭,福島久哲,堀田善治,小林繁夫

    表面技術協会第112回講演大会,2005年10月  2005.10 

     More details

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • IMPURITY EFFECT IN ZINC ELECTROLYSIS: CLASSIFICATION OF IMPURITIES AND THEIR SYNERGISTIC EFFECT International conference

    H. Nakano, S. Oue and H. Fukushima and T. Ohgai

    Proceedings of Lead & Zinc 2005 International Symposium, Kyoto, pp.1061-1075, October, 2005  2005.10 

     More details

    Presentation type:Oral presentation (general)  

    Venue:京都   Country:Japan  

  • CLASSIFICATION OF IMPURITIES IN ZINC ELECTROLYSIS:

    H. Nakano, S. Oue and H. Fukushima and T. Ohgai

    The 7th International Symposium on Materials Science and Engineering between Chonbuk National University and Kyushu University, Chonju, Korea, November, (2005)  2005.11 

     More details

    Presentation type:Oral presentation (general)  

    Venue:全北大学   Country:Korea, Republic of  

  • 電析Znの結晶形態に及ぼす無機不純物の影響

    谷口祥一,大上悟,中野博昭,福島久哲,小林繁夫

    西日本腐食防食研究会・表面技術協会九州支部・腐食防食協会九州支部第152回例会,2005年12月  2005.12 

     More details

    Presentation type:Oral presentation (general)  

    Venue:九州工業大学   Country:Japan  

  • 強ひずみ加工による超微細粒Alおよび陽極酸化Alの耐食性

    孫 仁俊 大上 悟 中野博昭 福島久哲

    材料プロセス談話会,九州支部,2006年3月  2006.3 

     More details

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • 電析Znの結晶形態に及ぼす無機不純物の影響

    谷口祥一 大上悟 中野博昭 福島久哲 小林繁夫

    表面技術協会第113回講演大会,2006年3月  2006.3 

     More details

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • 塩化物系一価銅浴からの銅電析における不純物の共析挙動

    鶴将嘉 大上悟 中野博昭 福島久哲 小林繁夫 日鉱金属 安部吉史

    資源・素材学会春季大会,2006年3月  2006.3 

     More details

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • EFFECT OF EQUEL-CHANNEL ANGULAR PRESSING ON THE PITTING CORROSION RISISTANCE OF ANODIZED ALUMINUM ALLOYS International conference

    In-Joon Son, Hiroaki Nakano, Satoshi Oue, Shigeo Kobayashi, Hisaaki Fukushima, Zenji Horita

    8th International Conference on Advanced Surface Engineering, Tokyo, 2006年5月  2006.5 

     More details

    Presentation type:Oral presentation (general)  

    Venue:東京   Country:Japan  

  • ECAP処理したAl-Mg合金の陽極酸化後の耐孔食性

    孫仁俊,大上悟,中野博昭,福島久哲,小林繁夫

    資源・素材学会九州支部春季例会,2006年6月  2006.6 

     More details

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • 銅電解精製における高分子添加剤の経時劣化挙動

    藤本敦,大上悟,中野博昭,福島久哲,小林繁夫

    資源・素材学会九州支部春季例会,2006年6月  2006.6 

     More details

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • Al-Mg合金の耐孔食性に及ぼすECAP処理の影響

    孫仁俊,大上悟,中野博昭,福島久哲,堀田善治

    日本金属学会・日本鉄鋼協会九州支部合同学術講演会,2006年6月  2006.6 

     More details

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • 銅電解精製における高分子添加剤と塩化物イオンの相乗効果の解析

    花田直哉,大上悟,中野博昭,福島久哲,小林繁夫

    資源・素材学会秋季大会,2006年9月  2006.9 

     More details

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • 強ひずみ加工Al合金の陽極酸化後の耐食性に及ぼす熱処理の影響

    孫仁俊 大上悟 中野博昭 福島久哲 堀田善治 小林繁夫

    表面技術協会第114回講演大会,2006年10月  2006.10 

     More details

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • 塩化物浴からの鉄族系合金の磁気特性とその電析挙動

    松野昌幸 小林繁夫,津留 大上悟,中野博昭,福島久哲

    表面技術協会第114回講演大会,2006年10月  2006.10 

     More details

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • 水溶液からのZn−V複合電析とその耐食性

    神崎大輔 大上悟 中野博昭 福島久哲 小林繁夫

    西日本腐食防食研究会・表面技術協会九州支部・腐食防食協会九州支部第156回例会,2006年12月  2006.12 

     More details

    Presentation type:Oral presentation (general)  

    Venue:九州工業大学   Country:Japan  

  • 電析膜の密着性の定量的評価方法の検討—スルファミン酸浴からのNi電析膜の密着性—

    中野博昭 大上 悟 見汐大樹 西畑義則 福島久哲 津留 豊

    表面技術協会第115回講演大会,論文賞受賞講演,2007年3月  2007.3 

     More details

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • 硫酸塩水溶液からのZn−V複合電析

    大上悟 神崎大輔 中野博昭 福島久哲 小林繁夫

    表面技術協会第115回講演大会,2007年3月  2007.3 

     More details

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • 銅電解精製における高分子添加剤の経時劣化挙動の解析

    藤本敦,大上悟,中野博昭,福島久哲,小林繁夫

    資源・素材学会春季大会,2007年3月  2007.3 

     More details

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • Effect of Annealing on the Pitting Corrosion Resistance of Anodized Aluminum-Magnesium Alloy Processed by Equal Channel Angular Pressing International conference

    In-Joon Son, Hiroaki Nakano, Satoshi Oue, Shigeo Kobayashi, Hisaaki Fukushima and Zenji Horita

    International Corrosion Engineering Conference, Seoul, Korea, 2007  2007.5 

     More details

    Presentation type:Oral presentation (general)  

    Country:Korea, Republic of  

  • Effect of polymer additives on zinc electrowinning International conference

    Hiroaki Nakano, Satoshi Oue, Hisaaki Fukushima and Shigeo Kobayashi

    European metallurgical Conference 2007, Dusseldolf, 2007, pp1535-1547  2007.6 

     More details

    Presentation type:Oral presentation (general)  

    Country:Germany  

  • 強ねじり加工STSP処理を行ったAl合金の耐孔食性

    大原秀樹 孫仁俊 大上悟 中野博昭 福島久哲 小林繁夫

    表面技術協会第116回講演大会,2007年9月  2007.9 

     More details

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • 電析銅の表面形態および結晶組織に及ぼす高分子添加剤の影響

    津山裕史 大上悟・中野博昭・福島久哲 小林繁夫

    資源・素材学会秋季大会,2007年9月  2007.9 

     More details

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • EFFECTS OF SMALL AMOUNTS OF VARIOUS INORGANIC ADDITIVES ON THE MORPHOLOGY AND APPEARANCE OF ZINC ELECTRODEPOSITED ON STEEL SHEETS International conference

    Hiroaki Nakano, Satoshi Oue, Hisaaki Fukushima Shigeo Kobayashi

    7th Int. Cof. on Zinc and Zinc Alloy Coated Steel Sheet, ISIJ, Osaka, Japan, November, 2007  2007.11 

     More details

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • 強ひずみ加工を施したAl-Cu合金の陽極酸化後の耐孔食性

    孫 仁俊 大上 悟 中野博昭 福島久哲 小林繁夫

    西日本腐食防食研究会・表面技術協会九州支部・腐食防食協会九州支部第158回例会,2007年12月  2007.12 

     More details

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • 硫酸塩水溶液からのZn-V酸化物複合電析

    中野博昭 大上 悟 福島久哲

    鉄鋼協会第155回春季講演大会,2008年3月  2008.3 

     More details

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • 銅電解精製における高分子添加剤の経時劣化挙動

    久保山宏 大上 悟 中野博昭 福島久哲 小林繁夫 林部豊

    資源・素材学会春季大会,2008年3月  2008.3 

     More details

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • 亜鉛電解採取における直鎖状高分子添加剤の経時劣化挙動

    成清久純 大上 悟 中野博昭 福島久哲 小林繁夫 林部豊

    資源・素材学会九州支部春季例会,2008年5月  2008.5 

     More details

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • Effect of Equal-Channel Angular Pressing on the Pitting Corrosion Resistance of Anodized Aluminum-Copper Alloy International conference

    In-Joon Son, Hiroaki Nakano, Satoshi Oue, Shigeo Kobayashi, Hisaaki Fukushima and Zenji Horita

    INTERFINISH 2008  2008.6 

     More details

    Presentation type:Oral presentation (general)  

    Country:Korea, Republic of  

  • 亜鉛電解採取における直鎖状高分子添加剤の経時劣化挙動

    成清久純 大上 悟 中野博昭 福島久哲 小林繁夫 林部豊

    資源・素材学会秋季大会,2008年10月  2008.10 

     More details

    Presentation type:Oral presentation (general)  

    Country:Japan  

▼display all

MISC

  • EBSDによる各種めっき皮膜断面の結晶方位測定について

    大上 悟

    表面技術   2015.12

     More details

    Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (scientific journal)  

Industrial property rights

Patent   Number of applications: 3   Number of registrations: 2
Utility model   Number of applications: 0   Number of registrations: 0
Design   Number of applications: 0   Number of registrations: 0
Trademark   Number of applications: 0   Number of registrations: 0

Professional Memberships

  • 日本鉄鋼協会

  • 表面技術協会

  • 資源素材学会

  • 腐食防食協会

Committee Memberships

  • 表面技術協会秋期講演大会実行委員   実行委員   Domestic

    2013.1 - 2013.9   

  • 西日本腐蝕防蝕研究会   運営委員   Domestic

    2010.4 - 2024.3   

  • 腐食防食協会   九州支部事務局   Domestic

    2010.4 - 2020.3   

  • 表面技術協会   九州支部事務局   Domestic

    2010.4 - 2020.3   

  • 資源・素材学会   広報幹事   Domestic

    2010.4 - 2017.3   

  • 表面技術協会   Councilor   Domestic

    2009.4 - 2024.3   

▼display all

Academic Activities

  • Screening of academic papers

    Role(s): Peer review

    2018

     More details

    Type:Peer review 

    Number of peer-reviewed articles in Japanese journals:1

  • 司会(Moderator)

    資源・素材学会  ( Japan ) 2017.3

     More details

    Type:Competition, symposium, etc. 

  • Screening of academic papers

    Role(s): Peer review

    2017

     More details

    Type:Peer review 

    Number of peer-reviewed articles in Japanese journals:1

  • 座長(Chairmanship)

    表面技術協会  ( Japan ) 2016.9

     More details

    Type:Competition, symposium, etc. 

  • 司会(Moderator)

    資源・素材学会  ( Japan ) 2016.3

     More details

    Type:Competition, symposium, etc. 

  • 司会(Moderator)

    西日本腐蝕防蝕研究会/表面技術協会九州支部/腐食防食学会九州支部  ( Japan ) 2014.12

     More details

    Type:Competition, symposium, etc. 

  • 司会(Moderator)

    西日本腐蝕防蝕研究会/表面技術協会九州支部/腐食防食学会九州支部  ( Japan ) 2014.12

     More details

    Type:Competition, symposium, etc. 

  • 司会(Moderator)

    資源・素材学会  ( Japan ) 2014.9

     More details

    Type:Competition, symposium, etc. 

  • 司会(Moderator)

    資源・素材学会  ( Japan ) 2014.3

     More details

    Type:Competition, symposium, etc. 

  • 座長(Chairmanship)

    西日本腐蝕防蝕研究会  ( Japan ) 2013.12

     More details

    Type:Competition, symposium, etc. 

  • 事務局

    西日本腐食防食研究会・表面技術協会・腐食防食協会九州支部合同講演会  ( Japan ) 2013.12

     More details

    Type:Competition, symposium, etc. 

    Number of participants:30

  • 実行委員

    表面技術協会秋季講演大会  ( Japan ) 2013.9

     More details

    Type:Competition, symposium, etc. 

    Number of participants:480

  • 座長(Chairmanship)

    資源・素材学会  ( Japan ) 2012.9

     More details

    Type:Competition, symposium, etc. 

  • 座長(非鉄金属製錬技術の現状と課題 < 企画発表>)

    資源・素材学会  ( Japan ) 2011.9

     More details

    Type:Competition, symposium, etc. 

  • 座長(湿式素材プロセッシング < 一般発表>)

    資源・素材学会  ( Japan ) 2011.9

     More details

    Type:Competition, symposium, etc. 

  • 司会(Moderator)

    資源素材学会  ( Japan ) 2010.9

     More details

    Type:Competition, symposium, etc. 

  • 司会(Moderator)

    資源・素材学会  ( Japan ) 2010.3 - 2010.4

     More details

    Type:Competition, symposium, etc. 

  • 司会(Moderator)

    資源・素材学会  ( Japan ) 2009.9

     More details

    Type:Competition, symposium, etc. 

  • 座長(Chairmanship)

    資源・素材学会  ( Japan ) 2009.3

     More details

    Type:Competition, symposium, etc. 

  • 座長(Chairmanship)

    表面技術協会  ( Japan ) 2008.9

     More details

    Type:Competition, symposium, etc. 

  • 学会会場の設営

    資源素材学会 資源・素材2006(福岡)  ( Japan ) 2006.9

     More details

    Type:Competition, symposium, etc. 

    Number of participants:300

▼display all

Other

  • 日本金属学会の学会誌Metal Transaction ISIJの表紙に論文中の写真が使用された

    2009.9

  • 日本金属学会の学会誌Metal Transaction ISIJの表紙に論文中の写真が使用された

    2008.8

  • 日本金属学会の学会誌Metal Transaction ISIJの表紙に論文中の写真が使用された

    2006.7

Research Projects

  • 金属の電解析出における水素発生反応を制御した次世代型機能性表面処理膜の開発

    Grant number:24K01217  2024.4 - 2027.3

    Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (B)

    中野 博昭, 谷ノ内 勇樹, 大上 悟

      More details

    Grant type:Scientific research funding

    ①Zn-活性金属水酸化物膜,Ni-Ni(OH)2,Ni-活性金属水酸化物膜において,電解方法,電析条件,添加剤によりH2発生サイトを制御して水酸化物の分布を設計する手法を確立する)。
    ②Zn-活性金属水酸化物の多層膜,均一組成膜を有する鋼板の耐食性を評価し,犠牲防食能と耐久性に及ぼす皮膜構造の影響を明らかにする。更に耐食性,耐摩耗性,加工性,塗装性,外観等の諸特性の観点から,最適な電析膜の構造を明確にする。
    ③Ni-Ni(OH)2, Ni-活性金属水酸化物膜において,アルカリ水電解からのH2発生挙動を解析し,H2発生触媒能と膜構造の関係を明らかにする。

    CiNii Research

  • Creation of composition-modulated Zn-based composite films electrodeposited on steel sheets for next generation high corrosion resistance

    Grant number:21H01672  2021 - 2024

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (B)

    中野 博昭, 大上 悟

      More details

    Authorship:Coinvestigator(s)  Grant type:Scientific research funding

    1) ダブルパルス電解法,電流走査法により,電流密度を制御することにより電析膜の膜厚方向で活性金属酸化物の含有率を周期的に変動させる多層膜および酸化物の含有率を連続的に変化させる傾斜組成膜の作製条件を確立する。
    2) Zn-活性金属酸化物の多層膜および傾斜組成膜を有する複合電析鋼板の耐食性を評価し,犠牲防食能と耐久性に及ぼす皮膜構造の影響を明らかにする。更に耐食性,耐摩耗性,加工性,塗装性,外観等の諸特性の観点から,最適な電析膜の構造を明確にする。
    3) PEGの分子量,活性金属が加水分解するpH,活性金属酸化物のζ電位等の各種因子について,活性金属酸化物の共析挙動に及ぼす影響を明らかにする。

    CiNii Research

  • Challenge to novel copper electrolysis process of super power saving type using resources circulation type recycling materials

    Grant number:21K18829  2021 - 2023

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Challenging Research(Exploratory)

    Nakano Hiroaki

      More details

    Authorship:Coinvestigator(s)  Grant type:Scientific research funding

    The effect of impurities and additives in solution on the passivation of Cu anode with purity of 78.7 mass% was clarified. The passivation was significantly easy to occur with an addition of 0.596 mol・dm-3 of Ni2+ ions, and was easy to occur with the addition of As5+ and Bi3+ ions. With an addition of Ni2+ ions, the viscosity of solution increased and the diffusion coefficient of Cu2+ ions decreased. As5+ and Bi3+ ions formed the compounds of As-Sb-O and As-Bi-O system in the slime, resulting in increase in compactness of slime. The passivation was significantly promoted with an addition of Cl- ions above 1.13 mmol・dm-3. Cl- ions formed the CuCl at the upper area of slime and increased the compactness of slime, resulting in promotion of passivation.

    CiNii Research

  • 使途特定寄附金

    2021

      More details

    Grant type:Donation

  • ポリエチレンイミンと活性金属ナノ微粒子を共析させた高耐食性亜鉛複合電析鋼板の開発

    Grant number:18H01753  2018 - 2020

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (B)

      More details

    Authorship:Coinvestigator(s)  Grant type:Scientific research funding

  • シリアルセクショニング法を用いた電析結晶のEBSD3次元方位測定

    2014 - 2016

    Grants-in-Aid for Scientific Research  Grant-in-Aid for challenging Exploratory Research

      More details

    Authorship:Principal investigator  Grant type:Scientific research funding

  • 分散粒子を含まない溶液から活性金属微粒子を共析させた高耐食性複合電析膜の開発

    Grant number:26289274  2014 - 2016

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (B)

      More details

    Authorship:Coinvestigator(s)  Grant type:Scientific research funding

  • ウルトラミクロトームとEBSDを用いた電析結晶の3次元方位測定

    2013 - 2015

    Grants-in-Aid for Scientific Research  Grant-in-Aid for challenging Exploratory Research

      More details

    Authorship:Principal investigator  Grant type:Scientific research funding

  • 非懸濁水溶液から活性金属酸化物ナノ微粒子が均一分散した次世代塩害高耐食性複合電析

    2012 - 2014

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (B)

      More details

    Authorship:Coinvestigator(s)  Grant type:Scientific research funding

  • ナノインデンターによる破面直下の塑性挙動解析

    2012 - 2014

    Grants-in-Aid for Scientific Research  Grant-in-Aid for challenging Exploratory Research

      More details

    Authorship:Coinvestigator(s)  Grant type:Scientific research funding

  • カチオンをドーピングした高分子アニオン固定ピー型高分子めっきの開発

    2012 - 2013

    Grants-in-Aid for Scientific Research  Grant-in-Aid for challenging Exploratory Research

      More details

    Authorship:Coinvestigator(s)  Grant type:Scientific research funding

  • カチオンをドーピングした高分子アニオン固定ピー型高分子めっきの開発

    2011 - 2013

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (B)

      More details

    Authorship:Coinvestigator(s)  Grant type:Scientific research funding

  • 電気化学を用いた電解製錬

    2011

    新井科学技術振興財団 研究助成金

      More details

    Authorship:Principal investigator  Grant type:Contract research

  • カチオンをドーピングした高分子アニオン固定ピー型高分子めっきの開発

    2010 - 2012

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (B)

      More details

    Authorship:Coinvestigator(s)  Grant type:Scientific research funding

  • 自己修復作用を持つ高耐食性亜鉛-なの微粒子複合電析

    Grant number:22560725  2010 - 2012

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (C)

      More details

    Authorship:Principal investigator  Grant type:Scientific research funding

  • 金属電析のエネルギー効率における直鎖状高分子化合物と無機物の相乗作用機構

    2009 - 2011

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (B)

      More details

    Authorship:Coinvestigator(s)  Grant type:Scientific research funding

  • 金属の表面改質を目的とした電解重合法による自己修復性導電高分子膜の創製

    2008 - 2010

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (B)

      More details

    Authorship:Coinvestigator(s)  Grant type:Scientific research funding

  • 自己修復作用を有した次世代型高耐食性ナノ微粒子複合電析

    Grant number:19760510  2007 - 2009

    Grants-in-Aid for Scientific Research  Grant-in-Aid for Young Scientists (B)

      More details

    Authorship:Principal investigator  Grant type:Scientific research funding

  • 電解法による金属高純度化における直鎖状高分子化合物の作用機構

    Grant number:19360345  2007 - 2009

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (B)

      More details

    Authorship:Coinvestigator(s)  Grant type:Scientific research funding

  • 次世代自動車用耐熱性コネクター材料の表面改質

    2007 - 2009

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (B)

      More details

    Authorship:Coinvestigator(s)  Grant type:Scientific research funding

  • 電気亜鉛めっき鋼板の亜鉛結晶配向性制御技術の確立

    2006 - 2012

      More details

    Authorship:Coinvestigator(s)  Grant type:Contract research

  • 陰極界面での加水分解反応を利用したナノ微粒子複合電析

    2006 - 2008

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (C)

      More details

    Authorship:Coinvestigator(s)  Grant type:Scientific research funding

  • 鋼板の表面処理を目的とした次世代亜鉛-活性金属の複合電析

    2006 - 2007

      More details

    Authorship:Coinvestigator(s)  Grant type:Contract research

  • 自己修復作用を有した次世代防錆用Zn-高原子価金属酸化物の複合電析

    2005 - 2007

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (C)

      More details

    Authorship:Coinvestigator(s)  Grant type:Scientific research funding

  • 銅の工業電解における特異吸着アニオンと界面活性剤の相乗作用

    Grant number:16760585  2004 - 2006

    Grants-in-Aid for Scientific Research  Grant-in-Aid for Young Scientists (B)

      More details

    Authorship:Principal investigator  Grant type:Scientific research funding

  • 鋼板の表面処理を目的とした亜鉛-活性金属酸化物複合膜の電析

    Grant number:16360366  2004 - 2006

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (B)

      More details

    Authorship:Coinvestigator(s)  Grant type:Scientific research funding

▼display all

Class subject

  • 物質化学工学実験第二

    2024.6 - 2024.8   Summer quarter

  • 物質化学工学実験第二

    2023.6 - 2023.8   Summer quarter

  • 物質化学工学実験第二

    2022.4 - 2022.9   First semester

  • 物質化学工学実験第二

    2021.4 - 2021.9   First semester

  • 物質化学工学実験第二

    2020.4 - 2020.9   First semester

  • 物質化学工学実験第二

    2020.4 - 2020.9   First semester

  • 物質化学工学実験第二

    2019.4 - 2019.9   First semester

  • 物質化学工学実験第二

    2019.4 - 2019.9   First semester

  • 物質化学工学実験第二

    2018.4 - 2018.9   First semester

  • 物質化学工学実験第二

    2017.4 - 2017.9   First semester

  • 物質化学工学実験第二

    2016.4 - 2016.9   First semester

  • 物質化学工学実験第二

    2015.4 - 2015.9   First semester

  • 物質化学工学実験第二

    2014.4 - 2014.9   First semester

  • 物質化学工学実験第二

    2013.4 - 2013.9   First semester

  • 物質化学工学実験第二

    2012.4 - 2012.9   First semester

  • 物質化学工学実験第二

    2011.4 - 2011.9   First semester

  • 物質化学工学実験第二

    2010.4 - 2010.9   First semester

  • 物質化学工学実験第二

    2009.4 - 2009.9   First semester

  • 物質化学工学実験第二

    2008.4 - 2008.9   First semester

▼display all

FD Participation

  • 2024.9   Role:Participation   Title:薬物依存対策研修会

    Organizer:University-wide

  • 2024.5   Role:Participation   Title:安全衛生に関するFD

    Organizer:Undergraduate school department

  • 2024.3   Role:Participation   Title:M2Bシステムの使い方

    Organizer:University-wide

  • 2023.6   Role:Participation   Title:ハラスメント防止講習

    Organizer:Undergraduate school department

  • 2022.3   Role:Participation   Title:全学FD)2021年度全学FDメンタルヘルス 講演会

    Organizer:University-wide

  • 2021.4   Role:Participation   Title:部門FD 安全衛生について

    Organizer:Undergraduate school department

  • 2016.5   Role:Participation   Title:部門FD 安全衛生について

    Organizer:Undergraduate school department

  • 2016.1   Role:Participation   Title:平成27年度 第2回 工学部・工学府FD 4学期制 東京工業大学副学長の講演

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2015.3   Role:Participation   Title:学生実験について

    Organizer:Undergraduate school department

  • 2014.5   Role:Participation   Title:安全FD 実験上の安全について

    Organizer:Undergraduate school department

  • 2013.2   Role:Participation   Title:雇用関係に関する説明

    Organizer:Undergraduate school department

  • 2012.10   Role:Participation   Title:平成24年度ハラスメント講習会

    Organizer:University-wide

  • 2012.5   Role:Participation   Title:安全衛生について

    Organizer:Undergraduate school department

  • 2012.3   Role:Participation   Title:1.研究申請書の書き方 2.チーム編成について

    Organizer:Undergraduate school department

  • 2011.10   Role:Participation   Title:職員の立場から実験で気をつけること(毒物・劇物)  材料工学部門の最近の人事ポイントについて

    Organizer:Undergraduate school department

  • 2011.4   Role:Participation   Title:部門FD 助教再任審査に関する説明会

    Organizer:Undergraduate school department

  • 2011.3   Role:Participation   Title:材料工学部門FD

    Organizer:Undergraduate school department

  • 2010.5   Role:Participation   Title:安全衛生FD

    Organizer:Undergraduate school department

  • 2010.5   Role:Participation   Title:平成22年度工学教育シンポジウム 理工系学部における国際戦略

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2010.3   Role:Participation   Title:第2回部門FD

    Organizer:Undergraduate school department

  • 2009.10   Role:Participation   Title:科学研究費申請書を書くにあたって 講師 材料工学部門 堀田教授

    Organizer:Undergraduate school department

  • 2009.3   Role:Participation   Title:九州大学の現状と動向

    Organizer:Undergraduate school department

  • 2008.3   Role:Participation   Title:工学研究院の将来構想策定とその理解共有・実行に向けて

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2007.9   Role:Participation   Title:平成19年度第2回全学FD

    Organizer:University-wide

▼display all

Outline of Social Contribution and International Cooperation activities

  • なし

Social Activities

  • インテリジェント中核人材育成

    飯塚研究開発機構  九州産業大学  2012.12

     More details

    Audience:General, Scientific, Company, Civic organization, Governmental agency

    Type:Seminar, workshop

  • めっき処理技術者人材育成

    飯塚研究開発機構  九州産業大学  2012.9

     More details

    Audience:General, Scientific, Company, Civic organization, Governmental agency

    Type:Seminar, workshop

  • インテリジェントめっき技術中核人材育生事業 実験講師

    経済産業省  九州産業大学  2011.10

     More details

    Audience:General, Scientific, Company, Civic organization, Governmental agency

    Type:Seminar, workshop

  • インテリジェントめっき技術中核人材育生事業 実験講師

    経済産業省  九州産業大学  2010.9

     More details

    Audience:General, Scientific, Company, Civic organization, Governmental agency

    Type:Seminar, workshop

  • インテリジェントめっき技術中核人材育生事業 実験講師

    経済産業省  九州産業大学  2009.9

     More details

    Audience:General, Scientific, Company, Civic organization, Governmental agency

    Type:Seminar, workshop

  • インテリジェントめっき技術中核人材育生事業 実験講師

    経済産業省  九州産業大学  2008.9

     More details

    Audience:General, Scientific, Company, Civic organization, Governmental agency

    Type:Seminar, workshop

  • インテリジェントめっき技術中核人材育生事業 実験講師

    経済産業省  九州大学伊都キャンパス  2007.9

     More details

    Audience:General, Scientific, Company, Civic organization, Governmental agency

    Type:Seminar, workshop

  • めっき技術研修会 実験講師

    表面技術協会九州支部  九州産業大学  2007.8

     More details

    Audience:General, Scientific, Company, Civic organization, Governmental agency

    Type:Seminar, workshop

  • インテリジェントめっき技術中核人材育生事業 実験講師

    経済産業省  九州産業大学  2006.12

     More details

    Audience:General, Scientific, Company, Civic organization, Governmental agency

    Type:Seminar, workshop

  • インテリジェントめっき技術中核人材育生事業 実験講師

    経済産業省  九州産業大学  2006.9

     More details

    Audience:General, Scientific, Company, Civic organization, Governmental agency

    Type:Seminar, workshop

  • めっき技術研修会 実験講師

    表面技術協会九州支部  九州産業大学  2006.8

     More details

    Audience:General, Scientific, Company, Civic organization, Governmental agency

    Type:Seminar, workshop

▼display all

Travel Abroad

  • 2007.5

    Staying countory name 1:Korea, Republic of   Staying institution name 1:ICEC2007