担当区分：最終著者   掲載種別：研究論文（学術雑誌）   出版者・発行元：Springer Science and Business Media LLC  

DOI： 10.1007/s40962-024-01298-5

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その他リンク： https://link.springer.com/article/10.1007/s40962-024-01298-5/fulltext.html

記述言語：英語   掲載種別：研究論文（学術雑誌）   出版者・発行元：Nano Letters  

Time-resolved or time-correlation measurements using cathodoluminescence (CL) reveal the electronic and optical properties of semiconductors, such as their carrier lifetimes, at the nanoscale. However, halide perovskites, which are promising optoelectronic materials, exhibit significantly different decay dynamics in their CL and photoluminescence (PL). We conducted time-correlation CL measurements of CsPbBr3 using Hanbury Brown-Twiss interferometry and compared them with time-resolved PL. The measured CL decay time was on the order of subnanoseconds and was faster than PL decay at an excited carrier density of 2.1 × 1018 cm-3. Our experiment and analytical model revealed the CL dynamics induced by individual electron incidences, which are characterized by highly localized carrier generation followed by a rapid decrease in carrier density due to diffusion. This carrier diffusion can play a dominant role in the CL decay time for undoped semiconductors, in general, when the diffusion dynamics are faster than the carrier recombination.

DOI： 10.1021/acs.nanolett.4c00483

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PubMed

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記述言語：日本語   出版者・発行元：公益社団法人 日本金属学会  

<p>The microstructural change and fracture by repeated gas nitriding and gas nitrocarburizing of SUS304 jig were investigated in this study. It was found that an oxide layer which was formed owing to high-temperature oxidation of the microstructure near the surface, was easily detached from the surface layer. Also, many micro voids in the oxide layer were observed. Beneath the oxide layer, a compound layer containing mainly nitrides was identified. A carbon diffusion region was observed in the matrix adjacent to the interface between the compound layer and the matrix. It was considered that the fine voids and uneven surfaces induced under loading stress during both treatments were the crack initiation points, which coalesced for the development of cracking. The fractured surface exhibits a sequence of brittle and ductile fracture patterns as the microstructure changes from the surface to the interior.</p>

DOI： 10.2320/jinstmet.j2023020

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記述言語：日本語   出版者・発行元：公益社団法人 日本金属学会  

The microstructural change and fracture by repeated gas nitriding and gas nitrocarburizing of SUS304 jig were investigated in this study. It was found that an oxide layer which was formed owing to high-temperature oxidation of the microstructure near the surface, was easily detached from the surface layer. Also, many micro voids in the oxide layer were observed. Beneath the oxide layer, a compound layer containing mainly nitrides was identified. A carbon diffusion region was observed in the matrix adjacent to the interface between the compound layer and the matrix. It was considered that the fine voids and uneven surfaces induced under loading stress during both treatments were the crack initiation points, which coalesced for the development of cracking. The fractured surface exhibits a sequence of brittle and ductile fracture patterns as the microstructure changes from the surface to the interior.

DOI： 10.2320/jinstmet.j2023020

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記述言語：その他   掲載種別：研究論文（学術雑誌）  

In this study, Y2Cu2O5 (YCO225) powders were prepared using a citric acid complex method, and the thermally decomposed products were characterized by powder X-ray diffraction, scanning electron microscopy (SEM), and UV–vis spectroscopy measurements. A single phase of YCO225 was obtained after calcination at 750 °C in air. The temperature is approximately 350 °C lower than the temperature at which a single phase of YCO225 appears by the solid-state reaction. From SEM observations, inter-particle sintering of YCO225 progressed and the particle size increases parabolically as the heating temperature increased. In the UV–vis measurement, YCO225 showed a charge-transfer type absorption from O2– to Cu2+ ions in the wavelength region shorter than 500 nm. In addition, absorption due to d-d transitions of Cu2+ ions appeared around 600, 710, and 860 nm, which were attributed to 2B1g→2A1g, 2B1g→2Eg, and 2B1g→2B2g, respectively. Furthermore, the greenness (-a* value) of YCO225 fired at 950 °C was found to be 27.9, which was greater than the greenness of commercial chrome green (Cr2O3, -a* = 15.0).

DOI： 10.1016/j.matlet.2023.135451

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記述言語：日本語   出版者・発行元：公益社団法人 日本工学教育協会  

DOI： 10.20549/jseeja.2024.0_368

CiNii Research

DOI： 10.2320/jinstmet.J2023020

Web of Science

掲載種別：研究論文（学術雑誌）  

The microstructural change and fracture by repeated gas nitriding and gas nitrocarburizing of SUS304 jig were investigated in this study. It was found that an oxide layer which was formed owing to high-temperature oxidation of the microstructure near the surface, was easily detached from the surface layer. Also, many micro voids in the oxide layer were observed. Beneath the oxide layer, a compound layer containing mainly nitrides was identified. A carbon diffusion region was observed in the matrix adjacent to the interface between the compound layer and the matrix. It was considered that the fine voids and uneven surfaces induced under loading stress during both treatments were the crack initiation points, which coalesced for the development of cracking. The fractured surface exhibits a sequence of brittle and ductile fracture patterns as the microstructure changes from the surface to the interior.

DOI： 10.2320/jinstmet.J2023020

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出版者・発行元：Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals  

The microstructural change and fracture by repeated gas nitriding and gas nitrocarburizing of SUS304 jig were investigated in this study. It was found that an oxide layer which was formed owing to high-temperature oxidation of the microstructure near the surface, was easily detached from the surface layer. Also, many micro voids in the oxide layer were observed. Beneath the oxide layer, a compound layer containing mainly nitrides was identified. A carbon diffusion region was observed in the matrix adjacent to the interface between the compound layer and the matrix. It was considered that the fine voids and uneven surfaces induced under loading stress during both treatments were the crack initiation points, which coalesced for the development of cracking. The fractured surface exhibits a sequence of brittle and ductile fracture patterns as the microstructure changes from the surface to the interior.

DOI： 10.2320/jinstmet.J2023020

Scopus

記述言語：日本語   出版者・発行元：公益社団法人 日本鋳造工学会  

DOI： 10.11279/jfeskouen.183_96

CiNii Research

記述言語：日本語   出版者・発行元：公益社団法人 日本鋳造工学会  

DOI： 10.11279/jfeskouen.184_17

CiNii Research

記述言語：日本語   掲載種別：研究論文（学術雑誌）   出版者・発行元：公益社団法人 日本金属学会  

The relationship between pouring temperature and carburized microstructure of 1％Nb–added SCH13A heat–resistant cast steel manufactured by the self–hardening mold casting process at pouring temperatures of 1753 K, 1823 K and 1883 K was investigated. The creep properties of these materials subjected to repeated carburizing and quenching treatment were also examined. As a result, with increasing pouring temperature, the carburized depth decreases and the carbon concentration distribution in the carburized layer increases. A relative comparison of the creep properties revealed that the volume of primary carbides and the number of voids and micro–cracks in carbides generated due to repeated vacuum carburizing quenching treatment affected the creep rupture time. Creep rupture time of the carburized specimens was shorter than that of the as–cast specimens. Additionally, pouring at 1823 K exhibits the longest rupture time among the samples poured at three different temperatures.

DOI： 10.2320/jinstmet.j2023011

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記述言語：英語   掲載種別：研究論文（学術雑誌）   出版者・発行元：Wiley  

Supercritical <scp>CO₂</scp>‐assisted formation of metal–organic framework‐loaded porous polystyrene membranes for dye removal
Abstract

Metal–organic frameworks (MOFs) are efficient adsorbents for the removal of hazardous materials. An MOF based on 1,3,5‐benzenetricarboxylic acid (BTC), Cu₃(BTC)₂, is prepared via phase separation using supercritical CO₂ (scCO₂) as a nonsolvent for the polymer solution. The prepared MOF is then loaded onto microporous polystyrene membranes. To evaluate the performance of Cu₃(BTC)₂‐loaded microporous polystyrene membranes for pollutant removal from water, they are tested for the separation of methylene blue (MB) dye from an aqueous solution. Prior to the preparation of the Cu₃(BTC)₂‐loaded microporous polystyrene membranes, Cu₃(BTC)₂ is activated with scCO₂. After the activation with scCO₂, the internal surface area of Cu₃(BTC)₂ and its MB adsorption increase. A toluene solution of polystyrene containing Cu₃(BTC)₂ particles is prepared, and scCO₂ is introduced to induce the phase separation of the polymer solution. A Cu₃(BTC)₂‐loaded microporous polystyrene membrane is obtained without the collapse of the structure after the release of the CO₂ pressure. MB can be readily and rapidly removed from aqueous solutions using Cu₃(BTC)₂‐loaded microporous polystyrene membranes. The removal efficiencies for aqueous MB solution were high, and removal efficiencies reached 92.8&#37;.

DOI： 10.1002/app.54347

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記述言語：日本語   掲載種別：研究論文（学術雑誌）   出版者・発行元：Japan Institute of Metals  

Microstructures of SUS304 Stainless Steel after Long-Term Service in Vacuum Carburizing Quenching

DOI： 10.2320/jinstmet.j2022037

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記述言語：日本語   出版者・発行元：公益社団法人 日本鋳造工学会  

DOI： 10.11279/jfeskouen.181_4

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記述言語：英語   掲載種別：研究論文（学術雑誌）   出版者・発行元：Japan Institute of Metals  

DOI： 10.2320/matertrans.f-m2022810

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記述言語：英語   掲載種別：研究論文（学術雑誌）   出版者・発行元：Japan Institute of Metals  

DOI： 10.2320/matertrans.f-m2022803

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記述言語：日本語   掲載種別：研究論文（学術雑誌）  

nfluence of Nb Additionon Microstructure and Creep Property of Heat-Resistant Cast Steel in Vacuum Carburizing and Quenching

DOI： 10.11279/jfes.94.235

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記述言語：英語   掲載種別：研究論文（学術雑誌）   出版者・発行元：IOP Publishing  

Abstract

Effect of radio frequency (RF) power on aluminum nitride (AlN) film crystallinity has been studied under low gas pressure of &#36;geqslant &#36;0.1 Pa and low RF power of &#36;geqslant &#36;3 W with Ar-20&#37;N₂ gas by a proposed balanced magnetron cathode with a high plasma production efficiency. The gas pressure and the RF power dependences of AlN film crystallinity show that the c-axis oriented AlN films can be obtained only at 50 W and 100 W in 0.1 Pa. The AlN film crystallinity was not promoted in the low RF power range of <50 W. An Ar-rich sputtering condition at 0.1 Pa induced the Al–Al bonds in the deposited films in a high RF power range of &#36;geqslant &#36;15 W. The control of the total flux balance between Al and nitrogen atoms at the substrate surface is important to design the optimum sputtering condition at 0.1 Pa.

DOI： 10.35848/1347-4065/ac4f96

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その他リンク： https://iopscience.iop.org/article/10.35848/1347-4065/ac4f96/pdf

記述言語：日本語   掲載種別：研究論文（学術雑誌）  

influence of Nb and V Addition on Abrasive and Impact Wear Properties of 16&#37;Cr-3&#37;Mo White Cast Iron

記述言語：日本語   掲載種別：研究論文（学術雑誌）  

Role of Matrix Structure on Impact-wear Resistance of As-quenched 27&#37;Cr Cast Iron

記述言語：日本語   掲載種別：研究論文（学術雑誌）  

Nb添加耐熱鋳鋼のミクロ組織および高温機械的特性特性に及ぼす鋳込み温度の影響

記述言語：日本語   掲載種別：研究論文（学術雑誌）  

27&#37;Cr鋳鉄の耐衝撃摩耗に及ぼす焼入れ温度の影響

記述言語：英語   掲載種別：研究論文（学術雑誌）  

Influence of nitrogen gas flow ratio on gallium nitride film growth using high-density convergent plasma sputtering device at room temperature

DOI： 10.1116/6.0000677

記述言語：英語   掲載種別：研究論文（学術雑誌）  

DOI： 10.2320/matertrans.f-m2020852

記述言語：英語   掲載種別：研究論文（学術雑誌）  

Here, we demonstrate the impact of tungsten precursor concentration on anisotropic crystal growth of hydrothermal tungsten oxide (WO3) nanowires. When varying the tungsten precursor concentration, we found two different critical concentrations for crystal growth on the (001) top plane and (100) sidewall plane of WO3 nanowires. A (001) plane-selective crystal growth is achieved by precisely controlling the tungsten precursor concentration in between these critical concentrations, while a crystal growth on the (100) plane tends to simultaneously occur above such a concentration range. Furthermore, the crystal growth rate on the (001) plane tends to be suppressed when the number density of nanowires increases due to competitive material supply between nanowires. The observed concentration dependence on nanowire growth can be interpreted in terms of a competition between the nucleation in solution and the crystal growth on the nanowire surface. The suggested mechanism offers a rational way to precisely control the nanowire structure and the number yield of nanowires. Using a single nanowire device composed of a structurally controlled WO3 nanowire, we demonstrate highly sensitive electrical molecular sensing of nonanal at 27 ppb.

DOI： 10.1021/acsanm.0c02194

記述言語：英語   掲載種別：研究論文（学術雑誌）  

DOI： 10.2320/matertrans.mt-m2020121

記述言語：日本語   掲載種別：研究論文（学術雑誌）  

耐熱鋳鋼のミクロ組織と高温特性に及ぼす鋳込み温度の影響

記述言語：英語   掲載種別：研究論文（学術雑誌）  

DOI： 10.1016/j.supflu.2020.104818

記述言語：英語   掲載種別：研究論文（学術雑誌）  

Low-temperature aluminum nitride (AlN) depositions were studied under low gas pressure conditions of 0.1Pa. In order to operate under 0.1Pa sputter-conditions, the magnetic mirror-type magnetron cathode (M3C) has been developed in the authors' studies. The plasma light-emission distributions generated by the M3C were observed at an input RF power of 5-100W and an Ar gas pressure of 0.1-0.65Pa. The M3C can operate effectively with both low gas pressure of 0.1Pa (Ar) and low RF power of 5W. The AlN films were deposited using a bare silicon substrate without external substrate heating. Thec-axis oriented AlN film was obtained at 0.1Pa (pure nitrogen), 100W, and a target-to-substrate distance of 70mm.

DOI： 10.1116/1.5129720

記述言語：日本語   掲載種別：研究論文（学術雑誌）  

27&#37;Cr鋳鉄の耐衝撃摩耗性に及ぼす鋳放し状態のミクロ組織の影響

記述言語：日本語   掲載種別：研究論文（学術雑誌）  

Effect of W addtion on Microstructure and High Temperature Properties of Austenitic Heat Resistant Cast Steel

記述言語：英語   掲載種別：研究論文（学術雑誌）  

DOI： 10.1016/j.matlet.2019.127124

記述言語：日本語   掲載種別：研究論文（学術雑誌）  

Effect of Nb on Thermal-Shock Resistance of Austenitic Heat Resistant Cast Steel

DOI： 10.2320/jinstmet.J2019029

記述言語：英語   掲載種別：研究論文（学術雑誌）  

記述言語：英語  

ZnO nanoparticles with fluorescent properties suitable for modification on protein surfaces

DOI： 10.1093/jmicro/dfz096

記述言語：英語  

Effect of microstructure on creep property of W-added heat resistant cast steel

DOI： 10.1093/jmicro/dfz094

記述言語：英語   掲載種別：研究論文（学術雑誌）  

Evaluation of crystal structure and surface-to-molecule interaction in hydrothermally grown titanium oxide nanowires

DOI： 10.1093/jmicro/dfz107

記述言語：英語  

Influence of as-cast microstructure on the impact wear resistance of 27 mass&#37;Cr cast Iron

DOI： 10.2320/matertrans.F-M2019844

記述言語：英語   掲載種別：研究論文（学術雑誌）  

Influence of As-Cast Microstructure on Impact Wear Resistance of 27mass&#37;Cr Cast Iron

DOI： 10.2320/matertrans.F-M2019844

記述言語：英語   掲載種別：研究論文（学術雑誌）  

Antibacterial and antifungal properties of Ag nanoparticle-loaded cellulose nanofiber aerogels prepared by supercritical CO2 drying

DOI： 10.1016/j.supflu.2018.08.008

記述言語：英語  

Study on ZrO2 nanoparticles having fluorescence property synthesized by complexing agent

DOI： 10.1093/jmicro/dfy120

記述言語：英語   掲載種別：研究論文（学術雑誌）  

Pd nanoparticles were successfully immobilized in the mesopores of hierarchical porous SiO2 and TiO2 using supercritical carbon dioxide (scCO(2))-acetone solution. The hierarchical porous SiO2 with macropores and mesopores demonstrated remarkable properties as a support for noble metal nanoparticle catalysts. The nano particle precursor, palladium(II) acetate (Pd(OAc)(2)), was impregnated into the mesopores of hierarchical porous SiO2 and TiO2 microparticles using scCO(2). These samples were subsequently reduced by treatment in a stream of H-2 at 473 K. During reduction, the formed Pd nanoparticles were dispersed within the hierarchical porous SiO2, with a uniform three-dimensional distribution of nanoparticles in the mesopores revealed by TEM images. The resulting Pd@hierarchical porous SiO2 exhibited high activity for the heterogeneous catalytic hydrogenation reaction of styrene in methanol solution. The catalytic activity of the Pd@hierarchical porous SiO2 was higher than that of Pd@conventional porous SiO2 without hierarchical porosity or the Pd@hierarchical porous TiO2.

DOI： 10.1016/j.supflu.2017.07.032

記述言語：その他  

Synthesis of C12A7 powder by using complex homogeneous precipitation method

記述言語：その他  

Effect of ε-FeSi phase content on thermoelectric properties of β-FeSi2 compound

記述言語：その他  

Structural Analysis of NbTi/SUS304 for filter-type semi-rigid cryogenic cable

記述言語：その他  

Development of semi-rigid superconducting coaxial cables with normal-conductor-clad center conductor

記述言語：その他  

Study on single-phase fabrication in ε-FeSi and crystal structure analysis

記述言語：英語   掲載種別：研究論文（学術雑誌）  

Pt nanoparticles were successfully immobilized inside the pores of a metal organic framework (MOF) like MIL-101(Cr) using supercritical carbon dioxide (scCO(2)), without Pt nanoparticles aggregating on the external surfaces of framework. After its preparation in a particular solvent, the internal surface area of MIL-101(Cr) increased slightly due to the scCO(2) drying method. The precursor H2PtCl6 could also be impregnated into the MOF pores using a scCO(2)-ethanol solution. These synthesized samples were reduced by treating in a stream of H-2 at 473 K. During the reduction, the formed Pt nanoparticles get dispersed within the MIL-101(Cr). TEM images clearly demonstrate the uniform three-dimensional distribution of Pt nanoparticles in the interior cavities of MIL-101(Cr). The resulting Pt@MIL-101(Cr) composites represent the highly active MOF-immobilized metal nanocrystals for catalytic ammonia borane hydrolysis. (C) 2015 Elsevier Inc. All rights reserved.

DOI： 10.1016/j.micromeso.2015.12.005

記述言語：英語   掲載種別：研究論文（その他学術会議資料等）  

Effect of Nb and W addition on heat-resistance of austenitic cast steel

記述言語：日本語   掲載種別：研究論文（学術雑誌）  

記述言語：英語   掲載種別：研究論文（学術雑誌）  

Poly(methyl methacrylate) (PMMA)-ZnO nanoparticle quantum dot (QD) composites were synthesized by dispersion polymerization in supercritical CO2 using poly(dimethylsiloxane)-g-pyrrolidonecarboxylic acid as a stabilizer. The ZnO nanoparticle QDs were first coated with silica to improve the stability of the ZnO nanoparticles in the methyl methacrylate (MMA) monomer and supercritical CO2. Vinyl groups were then introduced onto the surface of the silica-coated ZnO nanoparticle QDs by the addition of 3-(trimethoxysilyl)propylmethacrylate (TPM). These groups helped to minimize the QD loss during the formation of the PMMA and ZnO nanoparticle QD composite. The PMMA-ZnO QD composites were dissolved into tetrahydrofuran and transparent polymeric hybrid films of ZnO nanoparticle QDs and PMMA were obtained after evaporation of the THF from the solution. The unmodified ZnO nanoparticle QDs, which were agglomerated in the PMMA matrix, and the well-dispersed silica-coated ZnO nanoparticle QDs coupled with TPM exhibited weak and high emissions, respectively under UV irradiation. The silica layer and TPM stabilized the ZnO nanoparticle QDs. TPM promotes compatibility between the QDs and the PMMA matrix. (C) 2015 Elsevier B.V. All rights reserved.

DOI： 10.1016/j.supflu.2015.04.025

記述言語：その他  

© The Royal Society of Chemistry 2014.Herein we describe the supercritical carbon dioxide (scCO2)-assisted drug loading and release from nontoxic and biocompatible porous iron(III) polycarboxylate metal-organic frameworks (MOFs), which exhibited very high cargo loadings and gradual release. MIL-53(Fe) and MIL-100(Fe) were investigated as potential carriers for drug molecules, using ibuprofen as a model drug candidate. The loading and release behaviour of ibuprofen were monitored by thermogravimetric analyses (TGA) and high performance liquid chromatography (HPLC) measurements to quantitatively determine the ibuprofen uptake, and have been performed for the first time using scCO2-based technology. After the preparation of the MOFs within a particular solvent, the internal surface area of MIL-53(Fe) and MIL-100(Fe) increased as a result of the scCO2 drying method. Furthermore, ibuprofen could be impregnated into the pores of the MOFs by utilizing a scCO2-hexane solution. ScCO2-assisted impregnation could also be used to deliver ibuprofen to the pores of the MOFs. As a result, a large amount of ibuprofen was able to be loaded into MIL-53(Fe) and MIL-100(Fe).

DOI： 10.1039/C4TB00725E

記述言語：英語   掲載種別：研究論文（学術雑誌）  

Hydrophobic modification of fibers by pressure-induced phase-separation coupled with ultrasonic irradiation in high-pressure liquid carbon dioxide
This paper described the hydrophobic behavior produced by creating a rough surface on cellulose and polyester fibers using TiO2 nanoparticles and coating them with poly(heptadecafluorodecyl acrylate) [poly(HDFDA)]. To achieve the high hydrophobicity and water-contact angle caused by rough surfaces on fibers, pressure-induced phase-separation (PIPS) coupled with ultrasonic irradiation in high-pressure liquid CO2 was used. Rough structures were formed on the fibers coated with TiO2 because the shock waves generated by collapsing cavitation bubbles induced by ultrasonic irradiation accelerated the deagglomeration and dispersion of TiO2 nanoparticles and achieved dry-particle coating of the fiber surface in high-pressure CO2. The rough surface formed by the TiO2 nanoparticles was coated with poly(HDFDA) by using PIPS. The effect of surface roughness on the fiber hydrophobicity was investigated. (C) 2014 Elsevier B.V. All rights reserved.

DOI： 10.1016/j.cej.2014.02.055

記述言語：英語   掲載種別：研究論文（学術雑誌）  

We synthesized ZnO-nanoparticle quantum dots (QDs) as a fluorescent probe for biological applications. Highly luminescent silica-coated ZnO-nanoparticle QDs dispersed in an aqueous medium were synthesized using the sol-gel process. The ZnO-nanoparticle QDs were coated with silica to improve the water stability of the ZnO nanoparticles. NH2 groups were introduced on the surface of the silica-coated ZnO-nanoparticle QDs first by the addition of 3-aminopropyltrimethoxysilane and then by biotinylation with sulfosuccinimidyl-6-(biotin-amido) hexanoate (sulfo-NHS-LC-bioton). We demonstrated that avidin-immobilized agarose beads were tagged by the silica-coated ZnO-nanoparticle QDs with biotin by the selective avidin-biotin interaction, furnishing a fluorescent image upon excitation with UV light. Furthermore, use of the silica-coated ZnO-nanoparticle QDs with biotin in cell-labeling applications was attempted, and attachment of the silica-coated ZnO-nanoparticle QDs with biotin to nerve cells and actin filaments was achieved. © 2013 Elsevier Inc.

DOI： 10.1016/j.jcis.2013.02.047

記述言語：日本語   掲載種別：研究論文（学術雑誌）  

Analysis of Local Stress Distribution in Si Wafer by Combination Technique of CBED and FEM

DOI： 10.2320/materia.45.882

記述言語：日本語   掲載種別：研究論文（学術雑誌）  

Ti-1mass&#37;Sc mixed powder was milled up to 240h in argon gas atmosphere in a stainless pot with stainless steel balls. Pure Ti powder and Ti-20mass&#37;Sc mixed powder were used as comparing materials. Mean particle sizes of MA powders increased with increasing MA time up to 72h and decreased with increasing MA time in the time more than 72h. The mean particle size of pure Ti powder milled for 240h was approximately 30μm to 30μm before milling. On the other hand that of Ti-1mass&#37;Sc powder was approximately 10μm to 20μm before milling. In both pure Ti and Ti-1mass&#37;Sc powder, the particles were hardened gradually with increasing MA time. The hardness of particles of pure Ti and Ti-1mass&#37;Sc powders was approximately HV500 at the time of 240h to HV150 before milling. It was clarified that Sc was distributed uniformly in the particles after milled at 120h in Ti-20mass&#37;Sc mixed powder. The particles of powders milled were maintained very high hardness even after heated for 1h at 1273K. The hardness of sintered body was very high and approximately HV500.

DOI： 10.2497/jjspm.53.51

記述言語：日本語  

Preparation of Alloy Wires for Amorphous Coatings by Wire Explosion Thermal Spraying Process and Formation of Coatings

記述言語：日本語  

Characterization of Wire Explosion Thermal Sprayed Ni-P/SUS304 Composite Coatings

記述言語：日本語  

Measurements of local lattice strains by convergent-beam electron diffraction

DOI： 10.11410/kenbikyo2004.39.42

記述言語：英語   掲載種別：研究論文（学術雑誌）  

Lattice strains around a platelet oxygen precipitate in Si wafer is studied by energy filtering convergent-beam electron diffraction (CBED) and calculations based on the finite element method (FEM). Local lattice strains are measured from CBED patterns obtained with a probe size less than 2 nm in a specimen thicker than 450 nm. Strains measured are compressive along a direction normal to a plate of the precipitate and tensile along a direction parallel to the plate. Two-dimensional stress fields near the precipitate are obtained with FEM computer analyses by fitting the measured strains. It appears that shear stresses are concentrated at the end of the precipitate edge and the maximum shear stress at an interface between the precipitate and the Si-matrix is 1.9 GPa. It is demonstrated that a combination of the energy filtering CBED and FEM is very useful for the study of local strains near interfaces in semiconductor devices, in particular for the study of stress fields that are too steep for application of the conventional CBED technique.

DOI： 10.1017/S1431927601010030

記述言語：日本語  

Wire Explosion Thermal Sprayed Coatings of Ni-P Alloy-Plated SUS304 Wires

記述言語：英語  

Cu doped SiO_2 films have been prepared on quartz sub strates by an RF magnetron sputtering method. An as sputtered film showed no renection peaks in the X-ray diffraction pattern. Results of TEM observations of the as sputtered film indicated that Cu particles have a mean size of ca. 8.0 nm, and that they were dispersed homogeneously in Si0_2・ Some reflection peaks ap peared in X-ray diffraction pattern of a Cu doped SiO_2 film heated at 600℃. Heating at 600℃ increased the mean size of Cu particles slightly.

DOI： 10.2109/jcersj.102.299

開催年月日： 2024年3月

記述言語：日本語   会議種別：口頭発表（一般）  

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Synthesis and characterization of Y2Cu2O5 doped with another elements

開催年月日： 2023年9月

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Carrier diffusion effect in temporal decay of cathodoluminescence: toward nanoscale characterization of carrier dynamics

開催年月日： 2023年9月

記述言語：英語   会議種別：口頭発表（一般）  

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開催年月日： 2023年9月

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Dependence of Pulse Length of Plasma Discharge on Crystallinity of GaN Film by High-density Convergent Plasma Sputtering Device

開催年月日： 2023年9月

記述言語：英語   会議種別：ポスター発表  

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Effect of molecular additives on nanosheet morphology of ZnO nanoparticles

開催年月日： 2023年6月

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Effect of discharge pulse length on GaN film crystallization by high-density convergent plasma sputtering device

開催年月日： 2023年3月

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光触媒活性を高めるZnOナノ粒子の形態制御に関する研究

開催年月日： 2023年1月

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Si複合化によるβ-FeSi2の熱電特性改善と接合界面解析

開催年月日： 2023年1月

記述言語：日本語   会議種別：口頭発表（一般）  

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開催年月日： 2022年12月

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磁性元素をドープしたレピドクロサイト型層状チタン酸とこれを剥離させて得られるナノシートの分析の検討

開催年月日： 2022年12月

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水熱合成酸化亜鉛ナノ粒子の形態変化に及ぼす官能基の影響

開催年月日： 2022年12月

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熱電変換材料β-FeSi2/Si間の結晶構造解析と界面結合状態評価

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Gallium Nitride Film Deposition by High-density Convergent Plasma Sputtering Device with Liquid Metal Target

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Face-Selective Crystal Growth of Hydrothermal Tungsten Oxide Nanowires for Sensing Volatile Molecules

開催年月日： 2022年10月

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Estimation of optimal conditions for semiconductor nanowires by MBE growth using machine learning

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XRD and XPS studies for gallium nitride films by high-density convergent plasma sputtering device

開催年月日： 2022年10月

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Synthesis of ZnO microrod by Hydrothermal synthesis method

開催年月日： 2022年10月

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熱電変換材料β-FeSi2の熱電発電特性向上のための結晶方位解析

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Synthesis and characterization of Y2Cu2O5 doped with another elements

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Impact of Functional Group of Molecular Active on Morphology of Chemically Synthesized ZnO Nanostructures

開催年月日： 2022年8月

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Data-driven approach to predict growth conditions of compound semiconductor nanowires for optical devices by molecular beam epitaxy

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プラズマスパッタリング装置を用いて作製したGaN薄膜の結晶構造及び化学結合状態評価

開催年月日： 2022年6月

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開催年月日： 2022年6月

記述言語：日本語   会議種別：口頭発表（一般）  

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WドープZnOナノ構造体の形態と光触媒特性

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作物成長活性化へ向けたZnOナノ粒子の活用に関する研究

開催年月日： 2022年1月

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CdドープZnOの光触媒特性に関する基礎研究

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開催年月日： 2021年12月

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XRD Study for gallium nitride films prepared by high-density convergent plasma sputtering device

開催年月日： 2021年12月

記述言語：日本語  

国名：その他  

W doped ZnO nanostructure morphology and photocatalytic properties

開催年月日： 2021年12月

記述言語：日本語  

国名：その他  

Structural design of hydrothermal ZnO nanowires synthesized using nanoparticles

開催年月日： 2021年12月

記述言語：日本語  

国名：その他  

Descriptor Design for Prediction of Molecular Adsorption Tendency on GaN Crystal Surface by Machine Learning

開催年月日： 2021年9月

記述言語：日本語  

国名：その他  

Structural design of hydrothermal ZnO nanowires synthesized using nanoparticles as seeds

開催年月日： 2021年3月

記述言語：日本語  

国名：その他  

Influence of gas pressure for oriented AlN film growth by magnetic mirror-type magnetron cathode

開催年月日： 2021年3月

記述言語：日本語  

国名：その他  

W doped ZnO nanosturucture morphology and photocatalytic properties

開催年月日： 2021年3月

記述言語：日本語  

国名：その他  

Face-Selective Crystal Growth of Hydrothermal WO3 Nanowires & Molecular Sensing

開催年月日： 2020年11月

記述言語：日本語  

国名：その他  

高密度収束プラズマスパッタリング装置を用いた室温窒化ガリウム成膜の窒素ガス流量比依存性

開催年月日： 2020年3月

記述言語：日本語  

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水熱合成WO3ナノワイヤの構造設計および分子認識センサ応用

開催年月日： 2020年3月

記述言語：日本語  

国名：その他  

低ガス圧力環境下で非加熱スパッタ成膜した窒化アルミニウム薄膜の化学結合状態評価

開催年月日： 2020年1月

記述言語：英語  

国名：その他  

Study on Er-doped ZnO nanoparticles for near-infrared optical fibres

開催年月日： 2020年1月

記述言語：英語  

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Chemical bonding states of aluminum nitride thin films deposited at low gas pressure conditions

開催年月日： 2020年1月

記述言語：英語  

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Discharge characteristics of Magnetic Mirror type Magnetron Cathode

記述言語：日本語  

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C12A7エレクトライド作製のためのPCS処理と還元条件の検討

記述言語：英語  

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Development of thin semi-rigid coaxial cables as low-pass filter using bilayer structure in center conductors

記述言語：日本語  

国名：その他  

磁気ミラー型マグネトロンカソードを用いて低ガス圧力環境下で非加熱成膜した窒化アルミニウム薄膜

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開催地：習志野市   国名：その他  

記述言語：英語  

国名：その他  

Aluminum Nitride Film Deposition in Low Gas Pressure Operation

記述言語：英語  

国名：その他  

Magnetic mirror type magnetron sputtering cathode for low gas pressure and low power density operations

記述言語：日本語  

国名：その他  

Research of the effect of Sb compounds on thermoelectric properties in TiNiSb synthesis

記述言語：日本語  

開催地：熊本市   国名：その他  

記述言語：日本語  

国名：その他  

TiNiSb合金の単相化合成条件の検討と熱電特性への異相の影響

記述言語：日本語  

開催地：福岡市   国名：その他  

記述言語：日本語  

開催地：名古屋市   国名：その他  

記述言語：日本語  

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低ガス圧力での運転を可能にする 磁気ミラー型マグネトロンスパッタリングカソード

記述言語：日本語  

開催地：熊本市   国名：その他  

記述言語：日本語  

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Evaluation of AlN thin film using a magnetic mirror type magnetron cathode for low gas pressure operation

記述言語：日本語  

国名：その他  

Promotion of Anisotropic Crystal Growth of Hydrothermal WO3 Nanowires Based on Nucleation Theory and Construction of Single Nanowire Electronic Device

記述言語：日本語  

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水熱合成酸化タングステンナノワイヤの形態制御

記述言語：日本語  

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記述言語：日本語  

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Ca-Fe系複合酸化物の合成とキャラクタリゼーション

記述言語：英語  

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Catalytic performance of Cu/La-added ZnFe2O4 for CO oxidation

記述言語：日本語  

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Study on fluorescence emission of Eu-doped ZrO 2 nanoparticles

記述言語：英語  

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Formation of cellulose nanofiber aerogel-Ag nanoparticle composites by supercritical CO2 drying

記述言語：英語  

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Formation of highly catalytically active bimetallic nanoparticles using supercritical fluid-assisted immobilization

記述言語：英語  

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Supercritical fluid-assisted formation of Pd-Ru bimetallic nanoparticles

記述言語：日本語  

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有機酸錯体法を用いたC12A7の合成に関する研究

記述言語：日本語  

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錯化剤を用いて合成したZrO2ナノ粒子の蛍光特性に関する研究

記述言語：日本語  

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Fluorescence property of Zr based nanoparticles synthesized by complexing agent method

記述言語：日本語  

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記述言語：日本語  

国名：その他  

記述言語：日本語   会議種別：ポスター発表  

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Characterization and microstructure in Ga-doped ZnO nanoparticles

記述言語：日本語  

記述言語：日本語  

静電吸着複合法によるPEFC用電極触媒Pt‐Fe/CBの最適化調製条件の検討

記述言語：日本語  

TiNi_1-xFe_xSbハーフホイスラー合金の熱電変換特性に関する研究(II)

記述言語：日本語  

TiNi_1-xFe_xSbハーフホイスラー合金の熱電変換特性に関する研究

記述言語：日本語  

Nanostructures and Luminescence Properties of Zr Based Nanoparticles Prepared by Solution Growth Technique

DOI： 10.2320/materia.48.628

記述言語：日本語  

Formation of Amorphous Sprayed Alloy Coatings by Wire Explosion Process

記述言語：日本語  

Characterisics of Wire Explosion Sprayed Ni-P/SUS304 Composite Coatings

記述言語：日本語  

Preparation of Specimens for TEM Observation of Cross-section of Wire Explosion Sprayed Ni-P/SUS304 Composite Coatings and TEM Observation of the Coatings

記述言語：日本語  

Heterogeneous Precipitation of θ'-Al_2Cu and Al_3Sc in an Al-Cu-Sc Alloy

記述言語：日本語  

Characterisics of Ni-P/SUS304 Composite Coatings by Wire Explosion Spraying

記述言語：日本語  

Characterisics of Wire Explosion Sprayed Coatings using Ni-P Alloy Plated SUS304 Wire

記述言語：日本語  

Mechanical Properties of Aged Al-2.5Cu-0.23Sc Alloy

記述言語：日本語  

Assessment Report of Doctoral Theses

DOI： 10.15017/17199

記述言語：日本語  

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対象：社会人・一般,　学術団体,　企業,　市民団体,　行政機関

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対象：幼稚園以下,　小学生,　中学生,　高校生

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