2018 - 2022 Control of vacancy concentration and hydrogen isotope retention in neutron-irradiated tungsten alloys for fusion applications
2017 - 2022 Devrlopment of high durable Tungsten materials to realize divertor of a fusion reactor.
2017 - 2021 Study of hydrogen trapping at vacancy-type defects in tungsten and their growth promote effect by hydrogen
2017 - 2020 Study on hydrogen-defect interaction in nuclear materials by using PAS and TDS
2016 - 2019 Study of Radiation Damage Mechanisms of Structural Materials in Nuclear Reactors by Defect structure - Elemental distribution Tomography
2014 - 2017 Radiation effects on impurity-diffusion in Fe towards an Improvement of prediction of RPV embrittlement
2012 - 2015 Atomic scale observation of grain boundary segregation in nuclear materials by atom probe tomography and study on mechanism of grain boundary degradation
2011 - 2013 Irradiation
2009 - 2011 Atomic scale observation of grain boundary segregation in nuclear materials by atom probe tomography and study on mechanism of grain boundary degradation
2008 - 2009 Nano-carbides and carbide-matrix interfaces in nuclear reactor pressure vessel steel studied by 3D-AP
2005 - 2009 Clarification of Embrittlement and Degradation Mechanisms of NuclearSteel Materials by Advanced Nano-Materials Science for Control and Prediction of theMaterials Integrity
2006 - 2007 原子炉圧力容器鋼中の照射誘起ナノ析出物および照射欠陥の形成・発展過程の解明
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Papers (149)：
T. Toyama, T. Tanno, Y. Yano, K. Inoue, Y. Nagai, T. Ohtsuka, T. Miyazawa, M. Mitsuhara, H. Nakashima, M. Ohnuma, et al. Oxide particles in oxide dispersion strengthened steel neutron-irradiated up to 158 dpa at Joyo. Journal of Nuclear Materials. 2024. 599
Lei Zhang, Yifan Zhang, Wentuo Han, Xiaoou Yi, Pingping Liu, Kenta Yoshida, Takeshi Toyama, Qian Zhan, Yasuyoshi Nagai, Somei Ohnuki, et al. Impact of trace silicon on irradiation hardening and embrittlement of RAFM steel subjected to neutron irradiation. Fusion Engineering and Design. 2024
Takeshi Miyazawa, Takashi Tanno, Yuya Imagawa, Ryuta Hashidate, Yasuhide Yano, Takeji Kaito, Satoshi Ohtsuka, Masatoshi Mitsuhara, Takeshi Toyama, Masato Ohnuma, et al. Formulation of high-temperature strength equation of 9Cr-ODS tempered martensitic steels using the Larson-Miller parameter and life-fraction rule for rupture life assessment in steady-state, transient, and accident conditions of fast reactor fuel. Journal of Nuclear Materials. 2024. 155008-155008
Koji Inoue, Taiki Yamashita, Shuhei Nogami, Akira Hasegawa, Takeshi Toyama, Yasuyoshi Nagai. Direct observation of voids decorated with transmuted rhenium atoms in neutron-irradiated tungsten by correlative use of TEM and APT. Materialia. 2023. 32
Yuya Imagawa, Ryuta Hashidate, Takeshi Miyazawa, Takashi Onizawa, Satoshi Ohtsuka, Yasuhide Yano, Takashi Tanno, Takeji Kaito, Masato Ohnuma, Masatoshi Mitsuhara, et al. Creep deformation and rupture behavior of 9Cr-ODS steel cladding tube at high temperatures from 700°C to 1000°C. Journal of Nuclear Science and Technology. 2023
吉田健太, DU Yufeng, 嶋田雄介, 鈴土知明, 荒河一渡, 外山健, 井上耕治, 大貫聡明, 永井康介. In-situ WB-STEM Study of Annealing Process of Neutron Irradiation Induced Dislocation Loops. 日本原子力学会春の年会予稿集(CD-ROM). 2020. 2020
2012/11 - 2012MRSポスター賞 Atom Probe Tomography of Germanium Isotopic Multilayer Structure
2012/11 - Short Presentation Award Threshold Voltage and Channel Dopant Concentration Correlation in Silicone-Based Field-Effect Transistors Studies by Atom Probe Tomography
2012/10 - LPSO2012ポスター賞 Atom probe and positron annihilation study of the Mg-Zn-Y alloys with long period stacking ordered (LPSO) phases
2012/08 - ICPA-16 ポスター賞 Mg-Zn-Y alloys with long-period stacking order structures studied by positron annihilation spectroscopy
2011/02 - TMS2011ポスター賞 Effects of Irradiation Dose on Microstructural Evolution and Hardening of High- and Low-Cu Reactor Pressure Vessel Steels
2010/03 - 日本鉄鋼協会 日本鉄鋼協会 俵論文賞
2008/09 - JIM Award Nanostructural Evolution of Cr-rich Precipitates in a Cu-Cr-Zr Alloy During Heat Treatment Studied by 3 Dimensional Atom Probe
2006/07 - The 14th International Conference on Positron Annihilation ICPA-14 Poster Award
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Association Membership(s) (4)：
The Japan Society of Plasma Science and Nuclear Fusion Research
, 日本陽電子科学会
, 日本原子力学会
, 日本金属学会
