1988 Fiscal Year Final Research Report Summary
Investigation of Interaction between Helium Transmutation and Irradiation Damage in Ceramics for Nuclear Fusion Reactor
| Project/Area Number |
61880002
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| Research Category |
Grant-in-Aid for Developmental Scientific Research
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| Allocation Type | Single-year Grants |
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| Research Field |
プラズマ理工学
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| Research Institution | Osaka University |
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Principal Investigator |
IWAMOTO Nobuya Welding Research Institute・Osaka University・Professor, 溶接工学研究所, 教授 (40028973)
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| Co-Investigator(Kenkyū-buntansha) |
INOUE Katunori Welding Research Institute・Osaka University・Professor, 溶接工学研究所, 教授 (90029067)
KOBAYASHI Naoto Quantum Radiation Division・Electrotechnical Laboratory・Senior Researcher, 量子技術部, 主任研究員
岩田 忠夫 日本原子力研究所, 物理部, 室長
KOHYAMA Akira Faculty of Engineering・Tokyo University・Associate Professor, 工学部, 助教授 (80092203)
ITOH Noriaki Faculty of Science・Nagoya University・Professor, 理学部, 教授 (90022996)
IWATA Tadao Department of Physics・Japan Atomic Energy Research Institute・Principal Scientist
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| Project Period (FY) |
1986 – 1988
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| Keywords | Materials for nuclera fusion reactor / Ceramics / Nuclear transmutation / Deuterium ion implantation / Thermal diffusivity / Neutron irradiation / Irradiation defect / Micro-structure of ceramics / セラミックス微構造 |
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| Research Abstract |
Aluminum nitride (AIN) is a very important ceramics material for nuclear fusion reactor. In this research project, we have aimed to elucidate the irradiation effect of AIN due to nuclear transmutation and displacement damage. In order to attain this goal, before the irradiation, we firstly manufactured an experimental apparatus for production of high purity Al^<15>N ceramics, and then evaluated the various properties of the AIN obtained with isotopic adjustment. We were successful in the production of the AIN ceramics with high thermal conductivity. Physical, optical and thermal properties of the obtained AIN ceramics were investigated before and after irradiation. We carried out the irradiation experimental at RTNS-II, JMTR, JOUYOU, FFTF and HFIR. Furthermore, we established the new experimental thechnique of thermal diffusivity of ceramics by the use of laser flash method. Finally, we indicated the feasibility of laser production of AIN ultra-fine particles for preparation of RF window materials of nuclear fusion reactor.
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