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Recent Accomplishments and Future Prospects of Materials R&D in Japan

A. Kohyama, K. Abe, A. Kimura, T. Muroga, S. Jitsukawa

Fusion Science and Technology / Volume 47 / Number 4 / May 2005 / Pages 836-843

Technical Paper / Fusion Energy - Fusion Materials /

Japanese activities on fusion structural materials R & D have been well organized under the coordination of university programs and JAERI/NIMS programs more than two decades. Where, two categories of structural materials have been studied, those are; reduced activation martensitic/ferritic steels (RAFs) as reference material and vanadium alloys and SiC/SiC composite materials as advanced materials. The R & D histories of these candidate materials and the present status in Japan are reviewed with the emphasis on materials behavior under radiation damage. The on-going Japan-USA collaborations on blanket engineering and materials, JUPITER-II Program and on neutron radiation effects, JAERI/ORNL Phase IV and V are also presented.

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