Updated on 2021/04/01

写真a

 
Koichi Sato
 
Organization
Research Field in Engineering, Science and Engineering Area Graduate School of Science and Engineering (Engineering) Department of Engineering Mechanical Engineering Program Professor
Title
Professor

Degree

  • 博士(工学) () 2004.3   京都大学 )

Research Areas

  • Energy Engineering / Nuclear fusion  / 高エネルギー材料工学

  • Nanotechnology/Materials / Metallic material properties

Research History

  • Kagoshima University   理工学域工学系 理工学研究科(工学系) 工学専攻 機械工学プログラム   Professor

    2020.4

  • Kagoshima University   理工学域工学系 理工学研究科(工学系) 機械工学専攻   Professor

    2018.4 - 2020.3

  • Kagoshima University   理工学域工学系 理工学研究科(工学系) 機械工学専攻   Associate Professor

    2014.10 - 2018.3

Professional Memberships

  • 日本機械学会

    2015.5

  • 日本鉄鋼協会

    2015.2

  • 日本陽電子科学会

    2010.10

  • プラズマ・核融合学会

    2008.6

  • 日本物理学会

    2003.1

  • 日本金属学会

    2000.6

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Papers

  • Takuya Kamimura, Hayato Yamashita, Koichi Sato, Tsunakazu Ohyama, Yoshinori Kimoto, Qiu Xu, Shin-ichi Komazaki .  Comparison of hydrogen thermal desorption analysis curves of electron-irradiated F82H and creep-ruptured pure Fe obtained by experiments and simulations .  Materials Science Forum1024   135 - 144   2021.3

    Reviewed

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

  • Koichi Sato, Yohei Kondo, Masakiyo Ohta, Qiu Xu, Atsushi Yabuuchi, Atsushi Kinomura, Masahira Onoue, Takashi Onitsuka, Masahiko Hatakeyama, Hirotomo Iwakiri, Daiji Kato, Yoshiyuki Watanabe, Hiroyasu Tanigawa .  Change in the positron annihilation lifetime of vacancy clusters containing hydrogen atoms in electron-irradiated F82H .  Materials Science Forum1024   71 - 78   2021.3

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  • K. Sato, Y. Kondo, M. Ohta, A. Hirosako, M. Onoue, M. Hatakeyama, S. Sunada, Q. Xu .  Change in the positron annihilation lifetime of vacancies containing hydrogen atoms in electron-irradiated tungsten .  JPS Conference Proceedings, Proceedings of the 14th International Workshop Spallation Materials Technology28   061001   2020.2

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  • R. Kasada, K. Sato .  Positron annihilation study on the phase transition of thermally aged Fe-Cr binary alloys at 748K .  Philosophical Magazine Letters99   360 - 371   2019.11

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  • K. Sato, H. Yamashita, A. Hirosako, S. Komazaki, Q. Xu, M. Onoue, R. Kasada, K. Yabuuchi, A. Kimura .  Investigation of mechanical properties of stress-relieved and electron-irradiated tungsten after hydrogen charging .  Nuclear Materials and Energy17   29 - 33   2018.12

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    Authorship:Lead author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:Elsevier  

  • Y. Noshita, K. Sato, H. Yamashita, R. Kasada, Q. Xu, M. Hatakeyama, S. Sunada .  Detection of phase separation of neutron-irradiated Fe–Cr binary alloys using positron annihilation spectroscopy .  Nuclear Materials and Energy15   175 - 179   2018.5

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  • Koichi Sato, Akira Hirosako, Kazuki Ishibashi, Yuto Miura, Qiu Xu, Masahira Onoue, Yasuo Fukutoku, Takashi Onitsuka, Masahiko Hatakeyama, Satoshi Sunada and Toshimasa Yoshiie .  Quantitative evaluation of hydrogen atoms trapped at single vacancies in tungsten using positron annihilation lifetime measurements: Experiments and theoretical calculations .  Journal of Nuclear Materials496   9 - 17   2017.9

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  • K. Sato, Q. Xu and T. Yoshiie .  Simulation of the effect of volume size factor of solute atoms and their clusters on one dimensional motion of interstitial clusters in Ni binary alloys .  Computational Materials Science132   1 - 5   2017.2

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  • K. Sato, R. Tamiya, Q. Xu, H. Tsuchida and T. Yoshiie .  Detection of Deuterium Trapping Sites in Tungsten by Thermal Desorption Spectroscopy and Positron Annihilation Spectroscopy .  Nuclear Materials and Energy9   554 - 559   2016.12

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  • K. Sato, K. Ikemura, V. Krsjak, C. Vieh, R. Brun, Q. Xu, T. Yoshiie, and Y. Dai .  Defect structures of F82H irradiated at SINQ using positron annihilation spectroscopy .  Journal of Nuclear Materials468   281 - 284   2016.1

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  • K. Sato, S. Ishioka, Q Xu, T. Yoshiie, H Tsuchida, and A. Itoh .  Ni Ion Damage Structures and Hardness Changes in Austenitic Stainless Steels and their Model Alloys .  Journal of Physics: Conference Series674   012009   2016.1

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  • K. Sato, Q. Xu, T. Yoshiie, T. Sano, H. Kawabe, Y. Nagai, K. Nagumo, K. Inoue, T. Toyama, N. Oshima, A. Kinomura and Y. Shirai .  Development of a mono-energetic positron beam line at the Kyoto University Research Reactor .  Nuclear Instruments and Methods in Physics Research B342   104 - 107   2015.1

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  • Koichi Sato, Shota Kawamoto, Kimitaka Ikemura, Vladimir Krsjak, Christiane Vieh, Roger Brun, Qiu Xu, Toshimasa Yoshiie and Yong Dai .  Positron annihilation spectroscopy of ferritic/martensitic steels F82H and T91 irradiated with protons and neutrons at PSI .  Journal of Nuclear Materials450   59 - 63   2014.5

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  • Q. Xu, K. Sato, T. Yoshiie, T. Sano, H. Kawabe, Y. Nagai, K. Nagumo, K. Inoue, T. Toyama, N. Oshima, A. Kinomura and Y. Shirai .  Positron beam facility at Kyoto University Research Reactor .  Journal of Physics: Conference Series505   12030   2014.4

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  • K. Sato, Q. Xu, X.Z. Cao, P. Zhang, B.Y. Wang and H. Tsuchida .  Formation of Cu precipitates in a high-energy-particle-irradiated and thermally aged Fe-0.6%Cu alloy .  Journal of Physics: Conference Series505   12011   2014.4

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  • Qiu Xu, Koichi Sato, Xingzhong Cao, P Zhang, B.Y. Wang, Toshimasa Yoshiie, Hideo Watanabe and Naoaki Yoshida .  Interaction of deuterium with vacancies induced by ion irradiation in W .  Nuclear Instruments and Methods in Physics Research B315   146 - 148   2013.12

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  • Koichi Sato, Qiu Xu and Toshimasa Yoshiie .  Effects of Sn on defect structures in high-speed deformed Ni-Sn alloy .  Philosophical Magazine Letters93   567 - 574   2013.10

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  • Koichi Sato, Qiu Xu, Toshimasa Yoshiie, Yong Dai and Kenji Kikuchi .  Positron annihilation lifetime measurements of austenitic stainless and ferritic/martensitic steels irradiated in the SINQ target irradiation program .  Journal of Nuclear Materials431   52 - 56   2012.12

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  • Koichi Sato, Daiki Itoh, Toshimasa Yoshiie, Qiu Xu, Akihiro Taniguchi and Takeshi Toyama .  Effect of solute atom concentration on vacancy cluster formation in neutron-irradiated Ni alloys .  Journal of Nuclear Materials417   963 - 967   2011.10

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  • Koichi Sato, Atsushi Kinomura, Takamasa Omura, Qiu Xu, Toshimasa Yoshiie, Ryuta Kasada, Akihiko Kimura and Kazunori Morishita .  Positron annihilation lifetime measurements of He-ionirradiated Fe using pulsed positron beam .  Journal of Physics: Conference Series262   12053   2011.1

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  • Koichi Sato, Qiu Xu and Toshimasa Yoshiie .  Positron annihilation coincidence Doppler broadening measurements of irradiated-induced precipitation in Ni-Sn alloys .  Journal of Physics: Conference Series225   12047   2010.6

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  • Koichi Sato, Takafumi Ihara, Hisashi Sakurai, Toshimasa Yoshiie and Qiu Xu .  Comparison of interaction between Cu precipitate and vacancy in Fe using first-principle calculations and empirical N-body potential calculations .  Computational Materials Science47   521 - 525   2009.12

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  • Chunqing He, Toshimasa Yoshiie, Qiu Xu, Koichi Sato, S. Peneva and Toroyo D. Troev .  Detection of hydrogen in neutron-irradiated nickel using positron lifetime spectroscopy .  Philosophical Magazine89   1183 - 1195   2009.5

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  • Koichi Sato, Kazuya Inoue, Toshimasa Yoshiie, Qiu Xu, Eiichi Wakai, Chuzo Kutsukake and Kentaro Ochiai .  Positron annihilation lifetime measurements of vanadium alloy and F82H irradiated with fission and fusion neutrons .  Journal of Nuclear Materials386-388   203 - 205   2009.4

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  • Koichi Sato, Katsunori Tsukamoto, Yuki Yamashita, Qiu Xu, Toshimasa Yoshiie and Troyo D. Troev .  Detection of Hydrogen in Vacancies and Voids in Nickel by Positron Annihilation Lifetime Measurement .  Transactions of the Materials Research Society of Japan33   263 - 266   2008.4

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  • Michio Matsushita, Koichi Sato, Toshimasa Yoshiie and Qiu Xu .  Validity of Activation Energy for Vacancy Migration Obtained by Integrating Force-Distance Curve .  Materials Transactions48   2362 - 2364   2007.9

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  • Koichi Sato, Toshimasa Yoshiie and Qiu Xu .  One Dimensional Motion of Interstitial Clusters in Ni-Au Alloy .  Journal of Nuclear Materials367-370   382 - 385   2007.8

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  • Koichi Sato, Toshimasa Yoshiie, Toshitaka Ishizaki and Qiu Xu .  Behavior of vacancies near edge dislocations in Ni and Fe: Positron annihilation experiments and rate theory calculations .  Physical Review B75   94109   2007.3

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  • Koichi Sato, Toshimasa Yoshiie, Qiu Xu, Yuhki Satoh, Eiichi Wakai, Chuzo Kutsukake and Takeo Nishitani .  Point Defect Formation in V-4Cr-4Ti and F82H Irradiated with Fission and Fusion Neutrons .  Materials Transactions46   445 - 449   2005.3

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  • Koichi Sato, Toshimasa Yoshiie, Yuhki Satoh and Qiu Xu .  Computer simulation of formation energy and migration energy of vacancies under high strain in Cu .  Materials Transactions45   833 - 838   2004.3

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Awards

  • 日本陽電子科学会奨励賞

    2015.11   金属中の照射損傷研究と京都大学研究用原子炉を用いた陽電子ビームラインの

    佐藤紘一

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    Award type:Award from Japanese society, conference, symposium, etc.  Country:Japan

Research Projects

  • 陽電子消滅分光法を用いた金属中の格子欠陥に捕獲された水素の非破壊定量評価

    2018.04 - 2021.03

    Grant-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research(C)