TY - JOUR
T1 - Plasma material interaction studies on low activation materials used for plasma facing or blanket component
AU - Hino, T.
AU - Hirohata, Y.
AU - Yamauchi, Y.
AU - Hashiba, M.
AU - Kohyama, A.
AU - Katoh, Y.
AU - Lee, Y.
AU - Jinushi, T.
AU - Akiba, M.
AU - Nakamura, K.
AU - Yoshida, H.
AU - Sengoku, S.
AU - Tsuzuki, K.
AU - Kusama, Y.
AU - Yamaguchi, K.
AU - Muroga, T.
N1 - Funding Information:
The present study was partly supported by collaboration studies of Japan Atomic Energy Research Institute and National Institute of Fusion Science.
PY - 2004/8/1
Y1 - 2004/8/1
N2 - Numerous issues on the plasma material interactions were investigated for low activation materials. Co-deposited carbon dust was prepared and the deuterium concentration was measured. The concentration was approximately half of the present design value for ITER. For ferritic steel, the deuterium retention was observed to be comparable to that of stainless steel. Physical sputtering yield was roughly the same as that for stainless steel. For the reduction of absorption rate in vanadium alloy, titanium oxide coating was conducted, and the coating was observed to be very effective for reduction of hydrogen absorption. Helium gas permeability was measured for numerous SiC/SiC composites, and the SiC/SiC composite made by the NITE process showed quite low permeability. The SiC/SiC blanket may be able to be used without helium leakage into plasma.
AB - Numerous issues on the plasma material interactions were investigated for low activation materials. Co-deposited carbon dust was prepared and the deuterium concentration was measured. The concentration was approximately half of the present design value for ITER. For ferritic steel, the deuterium retention was observed to be comparable to that of stainless steel. Physical sputtering yield was roughly the same as that for stainless steel. For the reduction of absorption rate in vanadium alloy, titanium oxide coating was conducted, and the coating was observed to be very effective for reduction of hydrogen absorption. Helium gas permeability was measured for numerous SiC/SiC composites, and the SiC/SiC composite made by the NITE process showed quite low permeability. The SiC/SiC blanket may be able to be used without helium leakage into plasma.
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U2 - 10.1016/j.jnucmat.2004.04.193
DO - 10.1016/j.jnucmat.2004.04.193
M3 - Conference article
AN - SCOPUS:3342922686
SN - 0022-3115
VL - 329-333
SP - 673
EP - 677
JO - Journal of Nuclear Materials
JF - Journal of Nuclear Materials
IS - 1-3 PART A
T2 - Proceedings of the 11th Conference on Fusion Research
Y2 - 7 December 2003 through 12 December 2003
ER -