Kyushu University Academic Staff Educational and Research Activities Database
Search by Keyword How ro search
Keyword
Search Criteria
 
Detailed Search

List of Presentations
Takayuki Watanabe Last modified date：2024.04.08

Professor / Product System Engineering / Department of Chemical Engineering / Faculty of Engineering


Presentations
1. Koichiro Fujii, Hirokazu Akamatsu, Manabu Tanaka, Takayuki Watanabe, Hydrogen Production by Hydrocarbon Pyrolysis by Long DC Arc, Proceedings of 25th International Symposium on Plasma Chemistry, 2023.05, [URL].
2. Soon-Ho Kim, Manabu Tanaka, Takayuki Watanabe, Decomposition of Pharmaceutical and Personal Care Products by Water Plasma with Mist Generation, Proceedings of 25th International Symposium on Plasma Chemistry, 2023.05, [URL].
3. Qiran Sun, Manabu Tanaka, Takayuki Watanabe, Decomposition Mechanism of Insoluble Organics by DC Water Plasma at Atmospheric Pressure, Proceedings of 25th International Symposium on Plasma Chemistry, 2023.05, [URL].
4. Duan Chengyuan, Manabu Tanaka, Takayuki Watanabe, Decomposition Mechanism of Sulfur- and Nitrogen-Containing Liquid Waste in DC Water Plasma, Proceedings of 25th International Symposium on Plasma Chemistry, 2023.05, [URL].
5. Motoki Hirose, Kohei Yamashita, Manabu Tanaka, Takayuki Watanabe, Nanoparticle Formation Mechanism of Li-Ni-Ti Composite Oxide by Induction Thermal Plasmas, Proceedings of 25th International Symposium on Plasma Chemistry, 2023.05, [URL].
6. Aori Ichini, Aika Tamae, Manabu Tanaka, Takayuki Watanabe, Takafumi Okuma, Hisao Nagai, Taiki Maruyama, Density Measurement of Lithium Vapor in Multiphase AC Arc for Nanoparticle Production of Li-Mn Composite Oxide, Proceedings of 25th International Symposium on Plasma Chemistry, 2023.05, [URL].
7. Manabu Tanaka, Aika Tamae, Aori Ichini, Takayuki Watanabe, Takafumi Okuma, Hisao Nagai, Taiki Maruyama, Nanoparticle Formation Mechanism of Li-Mn Composite Oxides by Mutiphase AC Arc, Proceedings of 25th International Symposium on Plasma Chemistry, 2023.05, [URL].
8. Kaiwen Zhang, Kohei Yamashita, Manabu Tanaka, Takayuki Watanabe, Formation Mechanism of Metal-Doped ZrN by Induction Thermal Plasma, Proceedings of 25th International Symposium on Plasma Chemistry, 2023.05, [URL].
9. Yirong Wang, Kohei Yamashita, Kaiwen Zhang, Manabu Tanaka, Takayuki Watanabe, Nanoparticle Synthesis of Ternary Titanium Niobium Nitrides by Induction Thermal Plasmas, Proceedings of 25th International Symposium on Plasma Chemistry, 2023.05, [URL].
10. Haruna Nogami, Kohei Yamashita, Yuki Takemoto, Manabu Tanaka, Takayuki Watanabe, Correlation between Thermodynamic Stability and Formation of Transition Metal Nitride Nanoparticles by Nitrogen DC Arc, Proceedings of 25th International Symposium on Plasma Chemistry, 2023.05, [URL].
11. Han Chen, Kohei Yamashita, Kaiwen Zhang, Manabu Tanaka, Takayuki Watanabe, Nanoparticle Synthesis of Transition Metal Oxynitride by Induction Thermal Plasma, Proceedings of 25th International Symposium on Plasma Chemistry, 2023.05, [URL].
12. Ryo Takenaka, Yuta Sogo, Manabu Tanaka, Takayuki Watanabe, Masaya Shigeta, Tsuguo Matsuura, Characteristics of Planar Thermal Plasma Jet by Diode-Rectified AC Arc, Proceedings of 25th International Symposium on Plasma Chemistry, Proceedings of 25th International Symposium on Plasma Chemistry, 2023.05, [URL].
13. Yuta Sogo, Ryo Takenaka, Manabu Tanaka, Takayuki Watanabe, Masaya Shigeta, Tsuguo Matsuura　, Fluctuation Analysis of Diode-Rectified AC Arc by High-Speed Visualization, Proceedings of 25th International Symposium on Plasma Chemistry, 2023.05, [URL].
14. Ritsu Sogo, Aori Ichini, Manabu Tanaka, Takayuki Watanabe, Takafumi Okuma, Hisao Nagai, Taiki Maruyama, High-Speed Two-Directional Analysis of Temperature Characteristics in Multiphase AC Arc, Proceedings of 25th International Symposium on Plasma Chemistry, 2023.05, [URL].
15. Yosuke, Kishimoto, Makoto Sugimoto, Masaya Shigeta, Manabu Tanaka, Takayuki Watanabe, Time-Dependent Numerical Simulation of Heat and Mass Transports in Water Plasma Jet with Air Entrainment, Proceedings of 25th International Symposium on Plasma Chemistry, 2023.05, [URL].
16. Yuki Takemoto, Manabu Tanaka, Takayuki Watanabe, Effect of Doped Oxides on Cathode Erosion in Nitrogen Free Burning Arc, Proceedings of 25th International Symposium on Plasma Chemistry, 2023.05, [URL].
17. Manabu Tanaka, ＃Kohei Yamashita, Takayuki Watanabe, Plasma Synthesis of Binary Metal Nanoparticles, PPPL Discovery Plasama Science (DPS) Semianr Series, 2023.03.
18. Manabu Tanaka, Ryo Takenaka, Takafumi Okuma, Takayuki Watanabe, Development of Thermal Plasma Sourves with Diode-Rectification and Their Applications to Nanomaterial Fabrication, 24th Symposium on Application of Plasma Processes, 2023.02, [URL].
19. Takayuki Watanabe, Soon-Ho Kim, Manabu Tanaka, Myeong-Hoon Lee, Characterization and Diagnostics of DC Water Thermal Plasmas for Environmental Application, 2022 International Industry-University-Research-Application Cooperation Conference, 2022.12, [URL], 大気圧下で安定した水プラズマを発生させる革新的なミスト発生型水プラズマトーチを開発した。水プラズマは代替グリーン技術として様々な廃棄物処理で注目されている。これは、アーク放電によりH,O,OHなどの活性種が大量に発生し、かつ高温であるためである。したがって、水プラズマは化学反応を促進し、副生成物の生成を抑制し、さらにH2やCOなどの合成ガスを大量に生成することができる。.
20. Kaiwen Zhang, Manabu Tanaka, Takayuki Watanabe, Nanoparticle Synthesis of Heteroatoms-Doped ZrN by Induction Thermal Plasma, 2022 International Industry-University-Research-Application Cooperation Conference, 2022.12, [URL].
21. Manabu Tanaka, Kohei Yamashita, Takayuki Watamane, Formation Mechanism of Binary Alloy Nanoparticles by Induction Thermal Plasma, 23rd Workshop on Fine Particle Plasmas, 2022.12.
22. Kaiwen Zhang, Manabu Tanaka, Takayuki Watanabe, Nanoparticle Synthesis of Heteroatoms-Doped ZrN by Induction Thermal Plasma, 32nd Materials Reserch Society of Japan, 2022.12, [URL].
23. Yirong Wang, Kaiwen Zhang, Kohei Yamashita, Manabu Tanaka, Takayuki Watanabe, Synthesis of Ternary Ti1-xNbxN Nanoparticles by Induction Thermal Plasma, 32nd Materials Reserch Society of Japan, 2022.12, [URL].
24. Manabu Tanaka, Ryo Takenaka, Yuta Sogo, Aika Tamae, Takafumi Okuma, Takayuki Watanabe, Tsugio Matsuura, Juan-Pablo Trelles, Masaya Shigeta, Innovative Thermal Plasma Generation with Diode-Rectified AC Arc System and Its Applications, 5th Asia-Pacific Conference on Plasma Physics, 2022.10.
25. Yuki Takamoto, Manabu Tanaka, Takayuki Watanabe, Arc Temperature Measurement with High-Speed Camera Based on Continuum and Line Emissions in Argon-Nitrogen Fee-Burning Arc, Proceedings of 75th Annual Gaseous Electronics Conference and 11th International Conference on Reactive Plasmas, 2022.10, [URL].
26. Manabu Tanaka, Junjie Chang, Yuki Takamoto, Takayuki Watanabe, Tsuigo Matsuura, Tsuguo Ueda, Hideki Tozaki, Juan0Pablo Trelles, Masaya Shigeta, Arc Temperature Fluctuation near Electrode of Diode-Rectified Multiphase AC Arc, Proceedings of 75th Annual Gaseous Electronics Conference and 11th International Conference on Reactive Plasmas, 2022.10, [URL].
27. Takayuki Watanabe, Manabu Tanaka, Innovative Thermal Plasma Generation for Nanomaterials Synthesis, Recent Developments and Evolving Trends in Plasma Science and Technology & Pre-Conference Workshop on Modelling and Simulation of Industrial Plasmas, 2022.09.
28. Chengyuan Duan, Manabu Tanaka, Takayuki Watanabe, Treatment of Sulfur-Containing Wastewater using DC Water Plasma, 22nd International Vacuum Congress, 2022.09, [URL].
29. Takayuki Watanabe, ＃Soon-Ho Kim, Chengyuan Duan, Manabu Tanaka, Myeong-Hoon Lee, Characterization and Diagnostics of DC Water Thermal Plasmas for Innovative Processing, 15th Asia Pacific Physics Conference, 2022.08, 大気圧下で安定した水プラズマを発生させる革新的なミスト発生型水プラズマトーチを開発した。水プラズマは代替グリーン技術として様々な廃棄物処理で注目されている。これは、アーク放電によりH,O,OHなどの活性種が大量に発生し、かつ高温であるためである。したがって、水プラズマは化学反応を促進し、副生成物の生成を抑制し、さらにH2やCOなどの合成ガスを大量に生成することができる。.
30. Takayuki Watanabe, Thermal Plasma Characterization and Diagnostics for Innovative Material Processing, The 1st International Fusion Plasma Conference, 2022.08, 熱プラズマは、有害物質の分解、廃棄物からの有用物質の回収、高品質・高性能ナノ粒子の合成など、多くの革新的な産業応用への活用が期待されている。反応速度を向上させる高いエンタルピー、高い化学反応性、要求される化学反応に応じた酸化・還元雰囲気など、熱プラズマの利点は革新的な処理に有益である。
熱プラズマの特性に関する実験とモデリングは産業応用に捧げられてきた。しかし、熱プラズマの特性は、これらの努力にもかかわらず、まだ解明されていない。革新的な材料プロセスのための熱プラズマ処理における物理・化学現象について講演した。.
31. Eri Kumai, Manabu Tanaka, Takayuki Watanabe,Takeshi Hoshino, Satoshi Hosoda, Hiroshi Kanamori, Yuji Fujita, Large Scale Hysrogen Reduction System for Oxygen-Deficient Tungsten Oxide for Lithium-Ion Battery, The 5th International Union of Materials Research Societies International Conference of Young Researchers on Advanced Materials, 2022.08, [URL].
32. Eri Kumai, Manabu Tanaka, Takayuki Watanabe,Takeshi Hoshino, Satoshi Hosoda, Hiroshi Kanamori, Yuji Fujita, Large Scale Synthesis of Oxygen-Deficient Niobium Oxide by Continuous Hydrogen Reduction, The 5th International Union of Materials Research Societies International Conference of Young Researchers on Advanced Materials, 2022.08, [URL].
33. Hirokazu Akamatsu, Koichiro Fujii, Manabu Tanaka, Takayuki Watanabe, Synthesis of Nanocarbon Materialas by Ling DC Arc, The 5th International Union of Materials Research Societies International Conference of Young Researchers on Advanced Materials, 2022.08, [URL].
34. Byeong-il Min, Yiran Wang, Xiaoyu Zhang, Manabu Tanaka, Takayuki Watanabe, Synthesis of Double-Perovskite Li3La3W2O12 Nanoparticles by Induction Thermal Plasma for All Solid-State Batteries, The 5th International Union of Materials Research Societies International Conference of Young Researchers on Advanced Materials, 2022.08, [URL].
35. Kaiwen Zhang, Yuta Tanoue, Manabu Tanaka, Takayuki Watanabe, Nanoparticle Synthesis of Tantalum Oxynatiride by Induction Thermal Plasma, The 5th International Union of Materials Research Societies International Conference of Young Researchers on Advanced Materials, 2022.08, [URL].
36. Takayuki Watanabe，　Manabu Tanaka, Characterization and Diagnostics of Multiphase AC Arc for Innovative Material Processing, 2022 MRS Spring Meeting, 2022.05, 多相交流アークは、プラズマ体積が大きく、ガス速度が小さいなど、材料加工に有利であることから、最も魅力的な熱プラズマの一つである。また、他の熱プラズマと比較して、エネルギー効率が高く、低コストであるという利点もある。そのため、多相交流アークは、ガラス溶融技術やナノ材料製造プロセスなど、革新的な材料加工に応用されている。アークの安定性、アーク放電の時間的・空間的特性、電極現象は、最も理解すべき重要な現象である。多相交流アークの特性を解明することは、産業応用に役立つと思われる。多相交流アークにおける電極現象の高速可視化に基づき、電極の物理を解明した。.
37. Manabu Tanaka, Takafumi Okuma, Takayuki Watanabe, Tsugio Matsuura, Juan-Pablo Trelles, Masaya Shigeta, Thermal Plasma Generation by Diode-Rectification for rapid Surface Treatment, 2022 MRS Spring Meeting, 2022.05.
38. Manabu Tanaka Takayuki Watanabe, Generation and Applications of Innovative Thermal Plasmas, Fusion Seminar of Metallurgical and Energy Engineering, 2022.04.
39. Manabu Tanaka, Takafumi Okuma, Takayuki Watanabe, Tsugio Matsuura, Juan-Pablo Trelles, Masaya Shigeta, Development of Diode-Rectified AC Arc System for High-Throuput Process, 14th International Symposium on Advanced Plasma Science and Its Applications for Nitrides and Nanomaterials, 2022.03.
40. Manabu Tanaka, Takafumi Okuma, Takayuki Watanabe, Tsugio Matsuura, Planar Thermal Plasma Jet for Silicon Surface Treatment, Materials Research Meeting 2021, 2021.12.
41. Yiran Wang, Xiaoyu Zhang, Byeong-il Min, Manabu Tanaka, Takayuki Watanabe, Formation Mechanism of Amorphous Li4GeO4 Nanoparticles by Induction Thermal Plasma, Materials Research Meeting 2021, 2021.12.
42. Eri Kumai, Manabu Tanaka, Takayuki Watanabe, Takeshi Hoshino, Satoshi Hosoda, Hiroshi Kanamori, Yuji Fujita, Oxygen Deficiency Control of Metal Oxides by Continuous Hydrogen Reduction, Materials Research Meeting 2021, 2021.12.
43. Yuki Takamoto, Manabu Tanaka, Takayuki Watanabe, Arc Temperature Measurement Method with High-Speed Camera Considering Line and Continuum Emissions in Ar-N2 DC Arc, The 12th Asia-Pacific International Symposium in the Basics and Applications of Plasma Technology, 2021.12.
44. Manabu Tanaka, Yuta Kugimiya, Takuya Suenaga, Takayuki Watanabe, Electrode Phenomena in Multiphase AC Arc under Nitrogen Atmosphere, The 12th Asia-Pacific International Symposium in the Basics and Applications of Plasma Technology, 2021.12.
45. Takayuki Watanabe, Innovative Thermal Plasma Processing for Nanomaterials Synthesi, 2021 Maritime Silk Road International Conference on the Cooperation and Integration of Industry, Education, Research and Application in Metallurgy and Energy, 2021.11.
46. Eri Kumai, Manabu Tanaka, Takayuki Watanabe, Takeshi Hoshino, Satoshi Hosoda, Hiroshi Kanamori, Yuji Fujita, A Continuous Hydrogen Reduction System for Producing Functional Material Powders, 8th Asian Particle Technology Symposium, 2021.10.
47. Manabu Tanaka, Takafumi Okuma, Takayuki Watanabe, Tsugio Matsuura, Juan-Pablo Trelles, Masaya Shigeta, Fluctuation Phenomena in Planar Thermal Plasma Jet by Diode-Rectified AC Arc Discharge, The 74th Annual Gaseous Electronics Conference, 2021.10.
48. Chang Junjie, Yuki Takemoto, Takuya Suenaga, Aika Tamae, Manabu Tanaka, Takayuki Watanabe, Tsugio Matsuura, Tsuguo Ueda, Hideki Touzaki, Juan-Pablo Trelles, Masaya Shigeta, High-Speed Visualization of Temerature Fluctuation of Dode-Rectified Multiphase AC Arc near the Electrodes, The 74th Annual Gaseous Electronics Conference, 2021.10.
49. Chengyuan Duan, Manabu Tanaka, Takayuki Watanabe, Decomposition of N, N-dimethylformamide by DC Water Thermal Plasma at Atmospheric Pressure, 2nd Asian Conference on Thermal Sciences, 2021.10.
50. Masayuki Maekawa, Shen Zhengtong, Manabu Tanaka, Takayuki Watanabe, Design of Nitrogen Arc for Industrial Production of Nano-Powders, 5th Asia-Pacific Conference on Plasma Physics, 2021.09.
51. Takayuki Watanabe, Soon-Ho Kim, Chengyuan Duan, Hiiro Murakami, Manabu Tanaka, Myeong-Hoon Lee, Decomposition of Organic Waste by DC Water Thermal Plasmas, 5th Asia-Pacific Conference on Plasma Physics, 2021.09, 大気圧下で安定した水プラズマを発生させるために、ミスト発生機能付きの革新的な水プラズマトーチを開発した。水プラズマは、グリーンテクノロジーとして様々な廃棄物処理に注目されている。これは、アーク放電によりH、O、OHなどの活性種が大量に発生し、かつ高温になるためである。そのため、水プラズマは化学反応を促進し、副生成物の生成を抑制し、さらにH2やCOなどの合成ガスを大量に発生させることができる。本研究では、N,N-ジエチル-m-トルアミドの処理を行った。また、非生分解性の含窒素有機化合物のモデルとして、N,N-ジメチルホルムアミドを対象廃棄物として、これらの分解特性を比較した。.
52. Kazuki Matsui, Manabu Tanaka, Takayuki Watanabe, Decomposition Mechanism of CF4 by Long DC Arc Plasma, 5th Asia-Pacific Conference on Plasma Physics, 2021.09.
53. Manabu Tanaka, Takuya Suenaga, Aika Tamae, Takafumi Okuma, Takayuki Watanabe, Tsugio Matsuura, Juan-Pablo Trelles, Masaya Shigeta, Planar Thermal Plasma Jet in Dode-Rectified AC Arc System under Atmospheric Pressure, 5th Asia-Pacific Conference on Plasma Physics, 2021.09.
54. Eri Kumai, Manabu Tanaka, Takayuki Watanabe, Takeshi Hoshino, Satoshi Hosoda, Hiroshi Kanamori, A Continuous Hydrogen Reduction Process for ISRU on The Moon, The 11th Joint Planetary and Terrestrial Mining Sciences Symposium and Space Resources Roundtable, 2021.06.
55. Takayuki Watanabe, Hiroki Munekata, Hiiro Murakami, Manabu Tanaka, Analysis of discharge characteristics of water thermal plasma with mist generation by high-speed camera, 47th IEEE International conference on Plasma Sciences, 2020.12, [URL], Analysis of discharge characteristics of water thermal plasma with mist generation by high-speed camera.
56. Manabu Tanaka, Yuta Kugimiya, Takayuki Watanabe, Tsugio Matsuura, Planer Thermal Plasma Jet in Diode-Rectified AC Arc System under Atmospheric Pressure, 47th IEEE International Conference on Plasma Sciences, 2020.12.
57. Manabu Tanaka, Hiroki Maruyama, Yuta Kugimiya, Takuya Suenaga, Takayuki Watanabe, Tsuguo Ueda, Hideki Tousaki, Fluctuation Phenomena in Multiphase AC Arc under Nitrogen Atmosphere, 47th IEEE International Conference on Plasma Sciences, 2020.12, [URL].
58. Yiran Wang, Xiaoyu Zhang, Byeong-il Min, Manabu Tanaka, Takayuki Watanabe, Synthesis of Amorphous Oxide Electrolyte Nanoparticles for All-Solid State Battery by Induction Thermal Plasma, 47th IEEE International Conference on Plasma Sciences, 2020.12, [URL].
59. Byeong-il Min, Yiran Wang, Xiaoyu Zhang, Manabu Tanaka, Takayuki Watanabe, Synthesis of 3-Lithium Garnet Solid Electrolyte for All Solid Lithium Ion Battery by Induction Thermal Plasma, 47th IEEE International Conference on Plasma Sciences, 2020.12, [URL].
60. Takafumi Okuma, Hiroki Maruyama, Tomoyuki Imatsuji, Taro Hashizume, Hisao Nagai, Takeshi Koiwasaki, Manabu Tanaka, Takayuki Watanabe, Chaacterization of Muliphase AC Arc by High-Speed Visualizaion, 4th Asia Pacific Conference on Plasma Physics, 2020.10, [URL].
61. Takayuki Watanabe, Manabu Tanaka, Hiiro Murakami, Soon-Ho Kim, Myeong-Hoon Lee, Water Thermal Plasma Characteristics with Mist Generation for Waste Treatment, 4th Asia Pacific Conference on Plasma Physics, 2020.10, [URL], 基調講演：An innovative water plasma torch with mist generation was developed for stable water plasma under atmospheric pressure. The purpose of this study is to investigate the arc fluctuation phenomena in the water plasma torch with mist generation. High-speed camera observation synchronized with arc voltage measurement was performed to understand the arc fluctuation. Results revealed that the arc fluctuation in the developed torch can be classified as perfect restrike mode. Effect of arc current on the discharge characteristics was examined. Another work aims to treat bisphenol A (BPA) by the water plasma reactor, and the experiment results showed that the decomposition rate of BPA could be over 99.2% at 9.5 A and the monocyclic aromatics were suggested as main by-product. Moreover, the operation condition has been proved with effect for the decomposition rate of BPA and by-product generation..
62. Hydrogen reduction of lunar soil simulants by a fixed bed reactor has drawbacks of a decrease in the reaction rate due to temperature distribution and uneven filling of the sample. One of the processes to solve these problems is the fluidized bed. Hydrogen reduction experiments have been conducted on lunar soil simulants of 100 g by a fluidized bed reactor. Although the fluidized bed gives uniform temperature distribution and high efficiency in the reaction, gravity and the powder characteristics have a significant effect on the fluidization. In addition, continuous operation is difficult for the fluidized bed reaction system.
In this study, a continuous reactor has been built for hydrogen reduction of lunar soil simulants. The continuous screw reactor can handle a wide variety of samples for continuous operation. The reaction efficiency is high due to the large contact area of the sample as it passes through the reactor while rotating.
The developed system will be used for hydrogen reduction of metal oxides with the aim of industrial application. Production of oxygen-deficient metal oxides are expected to be used as highly functional materials in various fields., [URL].
63. Takayuki Watanabe, Hiroki Munekata, Hiiro Murakami, Manabu Tanaka, Thermal Plasma Generation of Water Vapor with Mist as Plasma Supporting Gas, 12th International Symposium on Advanced Plasma Science and Its Applications for Nitrides and Nanomaterials, 2020.03, [URL].
64. Tadashi Nonaka, Tanaka Manabu, Takayuki Watanabe, Nanoparticle Synthesis of Cubic Rock-Salt Lithium Oxide with Refractory Metal for Lithium-Ion Battery Electrodes, Abstracts of 7th Korea-Japan Joint Symposium on Advanced Solar Cells, 2020.01, [URL].
65. Manabu Tanaka, Yuki Saito, Takayuki Watanabe, High-Speed Visualization of Metal-Oxide Precursor in Thermal Plasma during Nanoparticle Synthesis Process, Material Research Meeting 2019, 2019.12, [URL].
66. Libei Liu, Yuuta Tanoue, Manabu Tanaka, Takayuki Watanabe, Formation Mechanism of Tungsten Boride Nanoparticles by Induction Thermal Plasma, Material Research Meeting 2019, 2019.12, [URL].
67. Yuta Taoue, Libei Liu, Manabu Tanaka, Takayuki Watanabe, Synthesis of Heavy Metal Borides Nanoparticles by Argon-Nitrogen Induction Plasma under Atmospheric Pressure, The 11th Asia-Pacific International Symposium in the Basics and Applications of Plasma Technology, 2019.12, [URL].
68. Takayuki Watanabe, Thermal Plasma Characterization and Process Control Diagnostics for Innovative Material Processing, The 11th Asia-Pacific International Symposium in the Basics and Applications of Plasma Technology, 2019.12, [URL], 基調講演：Thermal plasmas are expected to be utilized for a number of innovative industrial applications such as decomposition of harmful materials, recovery of useful materials from wastes, and synthesis of high-quality and high-performance nanoparticles. The advantages of thermal plasmas including high enthalpy to enhance reaction kinetics, high chemical reactivity, and oxidation or reduction atmospheres in accordance with required chemical reactions are beneficial for innovative processing.
The experimental and modeling efforts on thermal plasma characteristics has been devoted to industrial application. However, thermal plasma characteristics remain to be explored in spite of these efforts. The electrode phenomena are one of the most considerable issues, because it determines the processing performance in thermal plasmas. The objective of the study is to investigate the physical and chemical phenomena in thermal plasma processing for innovative material processing..
69. Hiroki Maruyama, Yuta Kugimiya, Manabu Tanaka, Takayuki Watanabe, Tsuguo Ueda, Hideki Tozaki, Investigation of Temperature Fluctuation Characteristics of Multiphase AC Arc under Nitrogen Atmosphere, Joint Symposium of Kyushu-Univ.-Shanghai Univ.-Yeungnam Univ, 2019.11.
70. Xiaoyu Zhang, Ririko Hayashida, Manabu Tanaka, Takayuki Watanabe, Effect of Carbon Sources on the Formation Mechanism of Carbon-Coated Silicon Nanoparticles by Induction Thermal Plasma, 3rd Asia-Pacific Conference on Plasma Physics, 2019.11, [URL].
71. Takayuki Watanabe, Manabu Tanaka, Visualization and Diagnostics in Thermal Plasma Processing, The 28th International Toki Conference on Plasma and Fusion Research, 2019.11, [URL].
72. Manabu Tanaka, Tsugio Matsuura, Yuta Kugimiya, Hiroki Maruyama, and Takayuki Watanabe, Generation of Innovative Thermal Plasma with Diode-Rectification Technique, 3rd Asia-Pacific Conference on Plasma Physics, 2019.11, [URL].
73. Takayuki Watanabe, Hiroki Munekata, Hiroki Maruyama, Manabu Tanaka, Hirofumi Yaguchi, Temperature Fluctuation of Water Plasma Installed on Vehicle System, 12th Asia-European International Conference on Plasma Surface Engineering, 2019.09, [URL].
74. Wenjing Chen, Hiroki Munekata, Manabu Tanaka, Takayuki Watanabe, Decomposition Mechanism of Bisphenol A by Water Thermal Plasma, 12th Asia-European International Conference on Plasma Surface Engineering, 2019.09, [URL].
75. Akio Hashizawa, Manabu Tanaka, Takayuki Watanabe, Tomohiro Koga, Effect of External Magnetic Field on Long DC Arc Characteristics with Ring-Shaped Anode, 18th Asian Pacific Confederation of Chemical Engineering Congress, 2019.09, [URL].
76. Manabu Tanaka, Hiroki Maruyama, Taro Hashizume, Tsugio Matsuura, Takayuki Watanabe, Investigation of Temperature Fluctuation of Diode-Rectified Multiphase AC Arc by High-Speed Visualization, 18th Asian Pacific Confederation of Chemical Engineering Congress, 2019.09, [URL].
77. Xiaoyu Zhang, Kentaro Yamano, Ririko Hayashida, Hirotaka Sone, Manabu Tanaka, Takayuki Watanabe, Formation Mechanism of amorphous Silicon Nanoparticles Synthesized by Induction Thermal Plasma, 18th Asian Pacific Confederation of Chemical Engineering Congress, 2019.09, [URL].
78. Yuta Kugimiya, Hiroki Maruyama, Manabu Tanaka, Tsugio Matsuura, Takayuki Watanabe, High-Speed Visualization of Electrode Evaporation in Multiphase AC Arc, 12th Asia-European International Conference on Plasma Surface Engineering, 2019.09, [URL].
79. Aki Takigawa, TaeHee Km, Yohei Igami, Tatsuki Umemoto, Akira Tsuchiyama, Chiyoe Koike, Junya Matsuno, Takayuki Watanabe, Formation of Metastable Alumina dust around AGB Stars: Condensation Experiments using Induction thermal Plasma Systems, 82nd Annual Meeting of the Meteoritical Society, 2019.07, [URL].
80. Manabu Tanaka, Yuki Saito, Hiroki Maruyama, Takayuki Watanabe, High-Speed Visualization of Metal Oxide Precursor in Multiphase AC Arc during Nanoparticle Formation, Proceedings of 10th International Conference on Reactive Plasmas, 2019.07, [URL].
81. Wenjin Chen, Hiroki Munekata, Manabu Tanaka, Takayuki Watanabe, Decomposition of Bisphenol A by Water Thermal Plasma, Proceedings of 10th International Conference on Reactive Plasmas, Proceedings of 10th International Conference on Reactive Plasmas, 2019.07, [URL].
82. Hiroki Munekata, Manabu Tanaka, Takayuki Watanabe, Discharge Characteristics of Water Plasma with Mist Generation, 24th International Symposium on Plasma Chemistry, 2019.06, [URL], 本研究では水プラズマを用いて，従来のプロセスでは処理できない難分解物質を処理する方法を開発している。水プラズマ中には電子のみならずイオンや原子などの重い粒子も高温度であり，かつ各種のラジカルを豊富に有しており，処理対象物質を短時間で高温にすることができる。プラズマ中のラジカルによる新規の廃棄物処理として，ゴミから水素を製造するプロセス開発を行っている。.
83. Takayuki Watanabe, Masaki Yoshida, Naoki Sakura, Manabu Tanaka, Visualization of Electrode Phenomena in Nitrogen DC Arc, 24th International Symposium on Plasma Chemistry, 2019.06, [URL].
84. Manabu Tanaka, Hiroki Maruyama, Taro Hashizume, Tsugio Matsuura, Takayuki Watanabe, Fluctuation Phenomena in Diode-Rectified Multiphase AC Arc for Impalement of Electrode Erosion, 24th International Symposium on Plasma Chemistry, 2019.06, [URL].
85. Hiroki Maruyama, Manabu Tanaka, Takayuki Watanabe, Hisao Nagai, Takeshi Koiwasaki, Takafumi Okuma, High-Speed Visualization of Temperature Fluctuation in Multiphase AC Arc, 24th International Symposium on Plasma Chemistry, 2019.06, [URL].
86. Libei Liu, Yuta Tanoue, Tadashi Nonaka, Tanaka Manabu, Takayuki Watanabe, Synthesis of Transition Metal Boride Nanoparticles by Induction Thermal Plasma, 24th International Symposium on Plasma Chemistry, 2019.06, [URL].
87. Tadashi Nonaka, Shuhei Yoshida, Kentaro Yamano, Ririko Hayashida, Manabu Tanaka, Takayuki Watanabe, Synthesis of Lithium Oxide Composite with Refractory Metal by Induction Thermal Plasmas, 24th International Symposium on Plasma Chemistry, 2019.06, [URL].
88. Ririko Hayashida, Kentaro Yamano, Hirotaka Sone, Manabu Tanaka, Takayuki Watanabe, Formation Mechanism of Carbon-Coated Amorphous Si Nanoparticles Synthesized by Induction Thermal Plasmas, 24th International Symposium on Plasma Chemistry, 2019.06, [URL].
89. Takayuki Watanabe, Thermal Plasma Characteristics for Material Processing, 11th International Symposium on Advanced Plasma Science and Its Applications for Nitrides and Nanomaterials, 2019.03, [URL].
90. Development of novel thermal plasma systems is introduced in this paper. Fundamental researches such as electrode phenomena and arc fluctuation are essential for revealing thermal plasma characteristics. These efforts lead to innovative industrial applications of material processing and waste treatment using thermal plasmas..
91. Manabu Tanaka, Yuta Kugimiya, Tsugio Matsuura, and Takayuki Watanabe, High-Speed Measurement for Electrode Temperature of Diode-Rectified Multiphase AC Arc, 2nd Asia-Pacific Conference on Plasma Physics, 2018.11.
92. Tadashi Nonaka, Shuhei Yoshida, Hirotaka Sone, Manabu Tanaka, and Takayuki Watanabe, Nanoparticle Synthesis of Lithium Oxide Composite with Refractory Metal for Lithium-Ion Battery Electrodes, 2nd Asia-Pacific Conference on Plasma Physics, 2018.11.
93. Naoki Sakura, Masaki Yoshida, Manabu Tanaka, and Takayuki Watanabe, Visualization of Metal Evaporation from Tungsten-based Cathode in Ar-N2 DC Arc, 15th International Conference on Fluid Dynamics, 2018.11.
94. Manabu Tanaka, Yuki Saito, Yushi Nawata, and Takayuki Watanabe, High-Speed Visualization of Metal Oxide Precursor in Thermal Plasma Flow during Nanoparticle Formation, 15th International Conference on Fluid Dynamics, 2018.11.
95. Takayuki Watanabe and Manabu Tanaka, Multiphase AC Arc for Innovative Plasma Processing, Asia-Pacific Conference on Plasma and Terahertz Science, 2018.08, 多相交流アークは、12本からなる電極間に交流電圧を順次組み合わせを変えながら印加してアーク放電を生じさせ、電極の間にある空間に熱プラズマを形成する新しいプラズマ形成法である。電力から熱プラズマへのエネルギー変換効率が高く、プラズマ流速が遅いことから粒子の飛翔過程での加熱効率が高いこと、最大出力の大きいものが実現可能であること、大容積のプラズマの形成が可能であることなどの利点を有しており、新規のプラズマプロセス開発として期待されている。.
96. Manabu Tanaka, Hirohiko Soeda, Takayuki Watanabe, Koji Otsuki, Fluctuation Phenomena of Plasma jet in long DC arc System with Ring-Shaped Anode, The 7th International Conference on Microelectronics and Plasma Technology, 2018.07.
97. Hiroki Munekata, Manabu Tanaka, and Takayuki Watanabe, Discharge Characteristics of Water Thermal Plasmas, The 7th International Conference on Microelectronics and Plasma Technology, 2018.07.
98. Masaki Yoshida, Naoki Sakura, Manabu Tanaka, Takayuki Watanabe, Seiichiro Shimizu, and Koji Fujii, High-Speed Visualization of Electrode Phenomena in Nitrogen DC Arc, The 7th International Conference on Microelectronics and Plasma Technology, 2018.07.
99. Manabu Tanaka, Tsugio Matsuura, and Takayuki Watanabe, High-Speed Visualization of Temperature Field in Diode-Rectified Multiphase AC Arc with Bipolar Electrodes, 15th High-Tech Plasma Processes, 2018.07.
100. Takafumi Okuma, Hisao Nagai, Takeshi Koiwasaki, Manabu Tanaka, and Takayuki Watanabe, Investigation of Characteristics of Multiphase AC Arc by High-Speed Visualization, The 7th International Conference on Microelectronics and Plasma Technology, 2018.07.
101. Takayuki Watanabe, Shuhei Yoshida, Tadashi Nonaka, Ririko Hayashida, Takahiro Sone, and Manabu Tanaka, Nanoparticle Synthesis by Thermal Plasmas for Lithium Ion Battery Application, International Conference on Processing & Manufacturing of Advanced Material, 2018.07.
102. Tadashi Nonaka, Shuhei Yoshida, Hirotaka Sone, Manabu Tanaka, and Takayuki Watanabe, Control of Crystal structure of Li-Me-Fe Oxide Nanoparticles for Lithium-Ion Battery Electrodes, 5th Japan-Korea Join Symposium on Advanced Solar Cells, 2018.02.
103. Manabu Tanaka, Shuhei Yoshida, Tadashi Nonaka, Takahiro Sone, and Takayuki Watanabe, Thermal Plasma Synthesis of Spinel Li-Mn-Fe Oxide Nanoparticles for Advanced Li-Ion Battery, Joint Workshop between SKKU and Kyushu University, 2018.01.
104. Thermal plasmas have attracted extensive attention due to their unique advantages, and it is expected to be utilized for a number of industrial applications. The advantages of thermal plasmas including high enthalpy to enhance reaction kinetics, high chemical reactivity, and oxidation or reduction atmospheres in accordance with required chemical reactions are beneficial for innovative processing. Water plasma waste treatment is one of green technology for the utilization of organic wastes. Since a large amount of H, O, and OH radicals are generated in the water plasma, decomposition and syngas production are accelerated in the treatment of water-soluble organic compounds..
105. Manabu Tanaka, Hirohiko Soeda, Takayuki Watanabe, and Koji Ohtsuki, Plasma Jet Characteristics in Long DC Arc with Ring-Shaped Anode, 14th International Conference on Fluid Dynamics, 2017.11.
106. Takafumi Ohkuma, Tomoyuki Imatsuji, Taro Hashizume, Manabu Tanaka, Takayuki Watanabe, Hisao Nagai, and Takeshi Koiwasaki, Effects of Working Pressure on Temperature Prifiles in Multi-Phase Ac Arc, 14th International Conference on Fluid Dynamics, 2017.11.
107. Tatsuya Mouri, Kouji Fujii, Tadao Uetsuki, and Takayuki Watanabe, Development of Tungsten Containing Neodymium Oxide, An Alternative Material for ThO2-W Used for Plasma Cathodes, JSPM International Conference on Powder and Powder Metallurgy, 2017.11.
108. Akira Mishima, Kouji Fujii, Tatsuya Mouri, Seiichiro Shimizu, Yasuki Miyazaki, and Takayuki Watanabe, Electrode Performance of “Neodymium Oxide-Containing Tungsten” in Argon Atmosphere, JSPM International Conference on Powder and Powder Metallurgy, 2017.11.
109. Takayuki Watanabe, Shuhei Yoshida, Tadashi Nonaka, Takahiro Sone, and Manabu Tanaka, Oxide Nanoparticle Synthesis by Thermal Plasmas for Lithium Ion Battery Electrode, The 4th Annual Symposium of Nonferrous Metallurgy of China, 2017.11, 招待講演：リチウムイオン電池の負極材料としては，グラファイトの10倍以上の理論容量を有していることからシリコンが期待されているが，シリコンの使用に関連する課題として充放電時の体積変化の問題がある。この課題を解決するアプローチとして，熱プラズマによるアモルファスシリコンやカーボン被覆シリコンナノ粒子の合成が期待されている。一方，正極材料は高エネルギー密度，良好なサイクル特性，安全性，低コストなどが要求課題となっており，正極材料をナノ粒子化することで比表面積が増大することから反応速度の向上が見込まれ，この分野でも熱プラズマによる正極材料ナノ粒子の合成が期待されている。本論文ではではリチウムイオン電池の現状と将来展望をはじめとし，熱プラズマによるナノ粒子合成の特徴を議論し，今後のリチウムイオン電池の材料開発における熱プラズマの役割を議論した。.
110. Takayuki Watanabe, Thermal Plasma Processing for Lithium Ion Battery Application, The 4th International Symposium on Hybrid Materials and Processing, 2017.11, リチウムイオン電池には，高容量化と高出力化による航続距離と充電速度に対する高性能化が求められており，負極材料としては，グラファイトの10倍以上の理論容量を有していることからシリコンが期待されているが，シリコンの使用に関連する課題として充放電時の体積変化の問題がある。この課題を解決するアプローチとして，熱プラズマによるアモルファスシリコンやカーボン被覆シリコンナノ粒子の合成が期待されている。一方，正極材料は高エネルギー密度，良好なサイクル特性，安全性，低コストなどが要求課題となっており，正極材料をナノ粒子化することで比表面積が増大することから反応速度の向上が見込まれ，この分野でも熱プラズマによる正極材料ナノ粒子の合成が期待されている。本論文ではではリチウムイオン電池の現状と将来展望をはじめとし，熱プラズマによるナノ粒子合成の特徴を議論し，今後のリチウムイオン電池の材料開発における熱プラズマの役割を議論した。.
111. Shuhei Yoshida, Takuya Kageyama, Hirotaka Sone, Manabu Tanaka, Takayuki Watanabe, Synthesis of Spinel Type Li-Mn-Fe Oxide Nanoparticles by Induction Thermal Plasmas, The 9th JSME-KSME Thermal and Fluids Engineering Conference, 2017.10.
112. Manabu Tanaka, Tomoyuki Imatsuji, Taro Hashizume, Takayuki Watanabe, Hisao Nagai, Takeshi Koiwasaki, and Takafumi Okuma, High-Speed Visualization of Temperature Fluctuation Phenomena in Multiphase AC Arc for Nanoparticles Fabrication, The 9th JSME-KSME Thermal and Fluids Engineering Conference, 2017.10.
113. Takayuki Watanabe, Yutaro Ozeki, and Manabu Tanaka, Thermal Plasma Characterizations for Environmental Application, The 11th Asian-European International Conference on Plasma Surface Engineering, 2017.09, 招待講演：水プラズマは水を原料としてプラズマを発生させる手法である．豊富なH，O，OHラジカルによる高活性およびプラズマの持つ高エンタルピーという特長から，物質の大量処理を見込んだ廃棄物処理技術への応用が検討されている．.
114. Manabu Tanaka, Kohki Saga, Taro Hashizume, Tsugio Matsuura, and Takayuki Watanabe, Improvement of Electrode Erosion Characteristics in Diode-Rectified Multiphase AC Arc, 23rd International Symposium on Plasma Chemistry, 2017.08.
115. Taro Hashizume, Manabu Tanaka, Tomoyuki Imatsuji, Yuji Nawata, and Takayuki Watanabe, High-Speed Visualization of Erosion Phenomena of Tungsten-Based Electrode in Multiphase AC Arc, 23rd International Symposium on Plasma Chemistry, 2017.08.
116. Hirotaka Sone, Shuhei Yoshida, Takuya Kageyama, Manabu Tanaka, and Takayuki Watanab, Li-Mn-Metal Oxide Nanoparticles Synthesized by Induction Thermal Plasmas for Li-Ion Batteries, 23rd International Symposium on Plasma Chemistry, 2017.08.
117. Naoki Sakura, Taiki Kondo, Masaki Yoshida, Manabu Tanaka, and Takayuki Watanabe, Investigation of Erosion Mechanism of Tungsten-Based Cathode in Ar-N2 DC Arc, The 15th International Conference on Advanced Materials, 2017.08.
118. Takayuki Watanabe, Yutaro Ozeki, Tshuyoshi Matsuo, and Manabu Tanaka, Characteristics of Water Thermal Plasmas as Radical Source, The 15th International Conference on Advanced Materials, 2017.08.
119. Manabu Tanaka, Koki Saga, Taro Hashizume, and Takayuki Watanabe, Diode-Rectified Multiphase AC Arc with Bipolar Electrodes for Industrial Applications, The 4th Joint Symposium of Kyushu-Univ.-Shanghai Univ.-Yeungnam Univ. on Chemical Engineering, 2017.06.
120. T. Watanabe, T. Hashizume, T. Imatsuji, M. Tanaka, High-speed visualization of thermal plasma characteristics, 31st International Congress on High-Speed Imaging and Photonics, 2017.01, Thermal plasmas are expected to be utilized for a number of industrial applications, such as nanomaterial synthesis and waste treatment. The thermal plasma generation and its characteristics remain to be explored for more attractive processing. In particular, the electrode dynamics are one of the most considerable issues for the practical use of industrial applications, because it determines the electrode lifetime and the performance of materials in thermal plasmas. High-speed imaging provides a powerful tool to reveal the plasma dynamics. High-speed video camera with bandpass filter system was used to measure the electrode temperature as well as the arc fluctuation. Electrode temperature was evaluated from the radiation intensities at 785 nm and 880 nm from the electrode thermal emission. This system can be also applied to observe the dynamic behavior of vapor generation from the electrode on the millisecond time scale. Emissions from tungsten vapor were observed at the wavelength of 393 nm. The tungsten electrode started to evaporate just after the peak top of the arc current in the anodic period. The tungsten vapor became the main species in the anodic arc when the electrode started to evaporate. In contrast, a small amount of tungsten evaporation was observed during the cathodic period. These experimental studies enable us to understand the electrode erosion mechanism of the multiphase AC arc. Fundamental researches for electrode phenomena determining thermal plasma characteristics lead to the development of innovative industrial applications of material processing and waste treatment..
121. Tanaka Manabu, Yuji Nawata, Tomoyuki Imatsuji, Takayuki Watanabe, Dynamic Behavior of Metal Oxide Vapors in Multiphase AC Arc during Oxide Nanoparticle Fabrication Process, 26th Symposium of The Materials Research Society of Japan, 2016.12.
122. Takayuki Watanabe, Taro Hasgizume, Tomoyuki Imatsuji, Tanaka Manabu, High-Speed Visualization of Thermal Plasma Characteristics, 31st International Congress on High-Speed Imaging and Photonic, 2016.11, プラズマ流はその複雑な現象に由来する計測の難しさがあり，可視化には限界があった。最近は高速度カメラとバンドパスフィルターを組み合わせることによって，高輝度のアーク中の移動現象を非接触で定量的な計測が可能なシステムが開発されており，様々な分野で有力な研究・開発手段として活用されるようになっている。この新領域研究会においては，反応性熱流体であるプラズマ流の移動現象やプラズマプロセッシングの反応過程を解明することを目的とした。.
123. Tanaka Manabu, Tomoyuki Imatsuji, Yuji Nawata, Taro Hasgizume, Takayuki Watanabe, Hisao Nagai, Tsuyoshi Koiwasaki, Takafumi Okuma, Investigation of Temperature Fluctuation in Multiphase AC Arc by High-Speed Camera with Bandpass Filter Optics, 31st International Congress on High-Speed Imaging and Photonic, 2016.11.
124. Tanaka Manabu, Taiki Kondo, Naoki Sakura, Takayuki Watanabe, Visualization of Metal Vaporization from Tungsten-Based Cathode in Ar-N2 DC Arc, 10th International Conference on Trends in Welding Research, 2016.10.
125. Taro Hashizume, Seiya Nagao, Tanaka Manabu, Takayuki Watanabe, Influence of Doped-Metal Oxide on Tungsten-Based Electrode Evaporation in Multiphase AC Arc, 10th International Conference on Trends in Welding Research, 2016.10.
126. Tanaka Manabu, Tomoyuki Imatsuji, Taro Hasgizume, Takayuki Watanabe, Hisao Nagai, Tsuyoshi Koiwasaki, Takafumi Okuma, Investigation of Temperature Charactersitcs in Multi-Phase AC Arc by High-Speed Visualization, 13th International Conference on Fluid Dynamics, 2016.10.
127. Yutaro Ozeki, Tsuyoshi Matsuo, Tanaka Manabu, Takayuki Watanabe, Charactersitcs of Water Thermal Plasma for Biomass Decomposition System, 13th International Conference on Fluid Dynamics, 2016.10.
128. Takayuki Watanabe, Taiki Kondo, Naoki Sakura, Tanaka Manabu, High-Speed Visualization of Metal Vapor Evaporated from Tungsten-Based Cathode in DC Arc, Gordon Research Conference , 2016.07.
129. Taro Hashizume, Tanaka Manabu, Seiya Nagao, Takayuki Watanabe, Influence of Doped Oxide on Tungsten-Based Electrode Evaporation in Multiphase AC Arc, 14th High-Tech Plasma Processes, 2016.07.
130. Tanaka Manabu, Tsugio Matsuura, Taro Hashizume, Takayuki Watanabe, Diode-Rectified Multiphase AC Arc with Bipolar Electrodes for Degradation of Electrode Erosion, 14th High-Tech Plasma Processes, 2016.07.
131. Hirotaka Sone, Takuya Kageyama, Tanaka Manabu, Shuhei Yoshida, Daisuke Okamoto, Takayuki Watanabe, Control of Crystal Structure of Lithium Metal Oxide Nanoparticles by Induction Thermal Plasmas, 13th Asia-Pacific Conference on Plasma Science and Technology, 2016.05.
132. Feng Liang, Tanaka Manabu, Sooseok Choi, Takayuki Watanabe, Comparison of Different Arc-Anode Attachment Modes for Nickel Nanoparticles Production by DC Arc Discharge, 13th Asia-Pacific Conference on Plasma Science and Technology, 2016.05.
133. Yaochun Yao, Takayuki Watanabe, Effect of Feed on In-Flight Melting Behavior of Granulated Soda-Lime Glass Raw Materials, 13th Asia-Pacific Conference on Plasma Science and Technology, 2016.05.
134. Taiki Kondo, Naoki Sakura, Tanaka Manabu, Takayuki Watanabe, Visualization of Metal Vapor Evaporated from Tungsten-Based Cathode in DC Arc by High-Speed Camera System, The 3rd Joint Symposium of Kyushu-Univ.-Shanghai Univ.-Yeungnam Univ. on Chemical Engineering, 2016.01.
135. Tomoyuki Imatsuji, Tanaka Manabu, Yushi Nawata, Taro Hashizume, Takayuki Watanabe, High-Speed Visualization of Temperature Fluctuation of Multi-Phase AC Arc, The 3rd Joint Symposium of Kyushu-Univ.-Shanghai Univ.-Yeungnam Univ. on Chemical Engineering, 2016.01.
136. Takayuki Watanabe, Thermal Plasmas for Industrial Applications, The 3rd Joint Symposium of Kyushu-Univ.-Shanghai Univ.-Yeungnam Univ. on Chemical Engineering, 2016.01.
137. Masaya Shigeta, Takayuki Watanabe, Computational Study in Collective Growth of Silicide Nanoparticles under a Thermal Plasma Conditions, 2nd International Symposium on Nanoparticles/Nanomaterials and Applications, 2016.01.
138. Takayuki Watanabe, Multi-Phase AC Arc for Industrial Application, 9th Asia-Pacific International Symposium in the Basics and Applications of Plasma Technology, 2015.12, プラズマプロセッシングの開発には電極におけるアークの物理現象，新規のプラズマ発生方法，プラズマの流体解析等の基礎研究が必須である。これらの基礎研究に基づく新しいプラズマプロセッシングの開発に関する基調講演を行った。新規のガラス溶融技術として注目されているインフライト溶融技術は，造粒したガラス原料を熱プラズマ中で瞬時に溶解する方法である。このインフライト溶融は，シーメンス炉の複雑な原料溶解過程を一本の熱プラズマで置き換えてしまう方式であり，この技術が成功すれば大半のガラス製造プロセスに適用することが可能となり，溶融炉の大幅な小型化と消費エネルギーの大幅な削減ができる。.
139. Tanaka Manabu, Taro Hashizume, Tomoyuki Imatsuji, Yushi Nawata, Takayuki Watanabe, High-Speed Visualization of Electrode Evaporation Phenomena in Multi-Phase AC Arc, 9th International Conference on Reactive Plasmas, 2015.10.
140. Daisuke Okamoto, Takuya Kageyama, Tanaka Manabu, Hirotaka Sone, Takayuki Watanabe, Synthesis of Core-Shell Structured Amorphous Si Nanoparticles by Induction Thermal Plasmas, 9th International Conference on Reactive Plasmas, 2015.10.
141. Takuya Kageyama, Hirotaka Sone, Tanaka Manabu, Daisuke Okamoto, Takayuki Watanabe, Synthesis of Lithium Oxide Composite Nanoparticles by Induction Thermal Plasmas, 9th International Conference on Reactive Plasmas, 2015.10.
142. Takayuki Watanabe, Water Thermal Plasmas for Environmental Application, The 10th Asian-European International Conference on Plasma Surface Engineering, 2015.09, 招待講演：水プラズマは水を原料としてプラズマを発生させる手法である．豊富なH，O，OHラジカルによる高活性およびプラズマの持つ高エンタルピーという特長から，物質の大量処理を見込んだ廃棄物処理技術への応用が検討されている．.
143. Tanaka Manabu, Tomoyuki Imatsuji, Yushi Nawata, Taro Hashizume, Takayuki Watanabe, Fluctuation Phenomena in Multi-Phase AC Arc for Nanoparticles Fabrication, 22nd International Symposium on Plasma Chemistry, 2015.07.
144. Taro Hashizume, Tanaka Manabu, Takayuki Watanabe, Droplet Ejection Mechanism from Tungsten Electrode in Multi-Phase AC Arc by High-Speed Visualization, 22nd International Symposium on Plasma Chemistry, 2015.07.
145. Takayuki Watanabe, Joji Kohara, Tsuyoshi Matsuo, Tanaka Manabu, Discharge Characteristics of Water Thermal Plasma for D-glucose Decomposition, 22nd International Symposium on Plasma Chemistry, 2015.07.
146. Daisuke Okamoto, Takuya Kageyama, Tanaka Manabu, Takayuki Watanabe, Investigation on Formation Mechanism of Amorphous Silicon Nanoparticles in Induction Thermal Plasmas, 7th International Symposium on Advanced Plasma Science and Its Applications for Nitrides and Nanomaterials, 2015.03.
147. Hirotaka Sone, Daisuke Okamoto, Takuya Kageyama, Tanaka Manabu, Takayuki Watanabe, Investigation on Formation Mechanism of Silicon Composite Nanoparticles in Induction Thermal Plasmas, 7th International Symposium on Advanced Plasma Science and Its Applications for Nitrides and Nanomaterials, 2015.03.
148. Taro Hashizume, Tanaka Manabu, Takayuki Watanabe, Investigation of Droplet Ejection Mechanism from Electrode in Multi-Phase AC Arc, The International Symposium on Visualization on Joining & Welding,, 2014.11.
149. Takayuki Watanabe, Thermal Plasma Generation for Innovative Materials Processing, 18th International Workshop of Advanced Plasma Processing and Diagnostics, 2014.11.
150. M. Rafiqul Alam, Feroza Begum, Quazi Delwar Hossain, M. Mofazzal Hossain, Takayuki Watanabe, Comparative Performance Study of Short and Long Induction Plasma Torches: a Numerical Approach, The 9th International Forum on Strategic Technology 2014, 2014.10.
151. Takayuki Watanabe, Taro Hashizume, Tanaka Manabu, Electrode Erosion Mechanism of Multi-Phase AC Arc, 21st Asia-Pacific Conference on Plasma Science and Technology , 2014.09.
152. Takayuki Watanabe, Innovative Plasma Processing from Fundamental Research of Plasma Generation, The IUMRS International Conference in Asia 2014, 2014.08, 熱プラズマによる材料合成では，準安定相や非平衡組成の材料を合成できるという特長があるので，熱プラズマによって組成が高度に制御されたナノ構造材料の合成が行われている。熱プラズマによるナノ粒子合成は，一つのステップで原料供給からナノ粒子合成までを実現する効率的なナノ粒子量産システムであり，産業的に期待されているプロセッシングである。.
153. Takayuki Watanabe, Taro Hashizume, Tanaka Manabu, Electrode Phenomena of Multi-Phase AC Arc, Gordon Research Conference, 2014.07.
154. Takayuki Watanabe, Multi-Phase AC Arc for Innovative Glass Melting, 13th European Plasma Conference, 2014.06, 基調講演:プラズマプロセッシングの開発には電極におけるアークの物理現象の解明が重要である。新しいプラズマプロセッシングのために開発した新規の多相交流アークに関する講演を行った。このプラズマは直径が100 mm以上のアークを発生することができ，エネルギー効率が高いことが利点である。.
155. Tanaka Manabu, Takayuki Watanabe, High-Speed Visualization of Electrode Phenomena in Thermal Plasma Processing, 5th International Conference on Microelectrinics and Plasma Technology 2014, 2014.07.
156. Takayuki Watanabe, Thermal Plasma Processing for Environmental Application, 5th International Conference on Microelectrinics and Plasma Technology 2014, 2014.07.
157. Junya Matsuno, Akira Tsuchiyama, Jun Noda, Tanaka Manabu, Takayuki Watanabe, Chiyoe Koike, Hiroki Chihara, GEMS-like Grains Produced by Condensation Experiment, The 45th Lunar and Planetary Science Conference, 2014.03.
158. Tetsuji Yano, Takayuki Watanabe, Osamu Sakamoto, Keizo Satoh, Satoru Inoue, In-Flight Vitrification Process of Granular Powders in In-Flight Melting Technology, 10th International Conference on Advanced Fusion and Processing of Glass , 2014.05.
159. Takayuki Watanabe, Innovation through In-flight Glass Melting using Thermal Plasmas, 18th International Workshop of Advanced Plasma Processing and Diagnostics, 2014.02.
160. Tanaka Manabu, Jun Noda, Takayuki Watanabe, Junya Matsuno, Akira Tsuchiyama, Formation Mechanism of Metal Nanoparticles Coated by Amorphous Silicate in Induction Thermal Plasmas, 8th International Conference on Reactive Plasmas, 2014.02.
161. Takayuki Watanabe, Nanoparticle Synthesis and Its Formation Mechanism in Thermal Plasmas, 8th International Conference on Reactive Plasmas, 2014.02, 熱プラズマによる材料合成では，準安定相や非平衡組成の材料を合成できるという特長があるので，熱プラズマによって組成が高度に制御されたナノ構造材料の合成が行われている。熱プラズマによるナノ粒子合成は，一つのステップで原料供給からナノ粒子合成までを実現する効率的なナノ粒子量産システムであり，産業的に期待されているプロセッシングである。.
162. Daichi Iou, Kotaro Sugi, Takayuki Watanabe, Yosuke Matsukuma, Ikuo Taniguchi, Shigenri Fujikawa, Electrochemical Method as a Novel of CO2 Removal System, The 26th International Symposium on Chemical Engineering, 2013.12.
163. Takayuki Watanabe, Tanaka Manabu, Tomoki Ikeba, Yaping Liu, Sooseok Choi, Temperature Measurement during Plasma Processing to Investigate Electrode Phenomena, 12th International Symposium on Fluid Control, Measurement and Visualization, 2013.11.
164. Junya Matsuno, Akira Tsuchiyama, Chiyoe Koike, Hiroki Chihara, Jun Noda, Tanaka Manabu, Takayuki Watanabe, Amorphous Silicate Dust Formed by Condensation Experiments: A Key to GEMS Formation Process, The Life Cycle of Dust in the Universe: Observations, Theory, and Laboratory Experiments , 2013.11.
165. Takayuki Watanabe, Tanaka Manabu, Electrode Phenomena of Multi-Phase AC Arc, International Conference on Surface Engineering, 2013.11, プラズマプロセッシングの開発には電極におけるアークの物理現象の解明が重要である。新しいプラズマプロセッシングのために開発した新規の多相交流アークに関する招待講演を行った。このプラズマは直径が100 mm以上のアークを発生することができ，エネルギー効率が高いことが利点である。.
166. Takayuki Watanabe, Innovative Thermal Plasma Processing from Fundamental Research, 21st International Symposium on Plasma Chemistry, 2013.08, [URL], 基調講演：プラズマプロセッシングの開発には電極におけるアークの物理現象，新規のプラズマ発生方法，プラズマの流体解析等の基礎研究が必須である。これらの基礎研究に基づく新しいプラズマプロセッシングの開発に関する基調講演を行った。新規のガラス溶融技術として注目されているインフライト溶融技術は，造粒したガラス原料を熱プラズマ中で瞬時に溶解する方法である。このインフライト溶融は，シーメンス炉の複雑な原料溶解過程を一本の熱プラズマで置き換えてしまう方式であり，この技術が成功すれば大半のガラス製造プロセスに適用することが可能となり，溶融炉の大幅な小型化と消費エネルギーの大幅な削減ができる。.
167. Feng Liang, Tanaka Manabu, Sooseok Choi, Takayuki Watanabe, Electrode Temperature Measurement for Carbon Nanomaterial Production by Arc Discharge Method, 21st International Symposium on Plasma Chemistry, 2013.08.
168. Tanaka Manabu, Tomoki Ikeba, Yaping Liu, Sooseok Choi, Takayuki Watanabe, Investigation of Electrode Erosion Mechanism of Multi-Phase AC Arc by High-Speed Video Observation, 21st International Symposium on Plasma Chemistry, 2013.08.
169. Sooseok Choi, Seiji Koyama, Takayuki Watanabe, Yaping Liu, Dongwha Park, Preparation of Amorphous Li4SiO4 Nanoparticles from Crystalline Raw Material by RF Thermal Plasma, 21st International Symposium on Plasma Chemistry, 2013.08.
170. Yaping Liu, Tanaka Manabu, Sooseok Choi, Takayuki Watanabe, Investigation of Spatial Characteristics of Multi-Phase AC Arc Combined with In-Situ Particle Measurement, 21st International Symposium on Plasma Chemistry, 2013.08.
171. Sooseok Choi, Jiro Matsuo, Takayuki Watanabe, Synthesis of AlB12 and YB66 nanoparticles by RF thermal plasmas, 11th Asia Pacific Conference on Plasma Science and Technology, APCPST 2012 and 25th Symposium on Plasma Science for Materials, SPSM 2012, 2013.01, Boron-rich compounds of AlB12 and YB66 nanoparticles were synthesized in radio frequency (RF) thermal plasmas. Yttrium tetraboride or aluminium powders with 10 μm in diameter and boron powder with 45 μm in diameter were evaporated in the high temperature region of the thermal plasma, and then metal boride nanoparticles were formed in the tail region of the plasma with rapid quenching. Boron-rich compounds were identified by X-ray diffractometry in the product. Polyhedral shaped nanoparticles about 20 nm in size were measured in Al-B system by transmission electron microscopy, while YB66 particles about 50 nm in size were cubic in morphology. The composition of raw powder and the input power of RF thermal plasma were controlled to enhance the content of boron-rich metal borides in as-prepared nanoparticles. Since boron has very high melting point and evaporation temperature, high boron content in the raw powder and high input plasma power were preferable to synthesize AlB12 and YB66 nanoparticles..


Unauthorized reprint of the contents of this database is prohibited.

Copyright © 2006, Kyushu University. All rights reserved.