Fabricating tritium permeation barrier for PFC with a new non-coating strategy

Fabricating tritium permeation barrier for PFC with a new non-coating strategy
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采用新的无涂层策略制造 PFC 氚渗透屏障

DOI:
10.1088/1402-4896/ac3b6b
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发表时间:
2021-11
期刊:
影响因子:
2.9
通讯作者:
Guang-Nan Luo
Guang-Nan Luo
中科院分区:
物理与天体物理3区
文献类型:
--
作者:
Lu Wang;Hai-Shan Zhou;Hao-Dong Liu;Yu-Ping Xu;Wan-Jing Wang;Yan-Fen Li;Guang-Nan Luo

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Tritium (T) permeation through plasma-facing component (PFC) into the coolant is a major concern of fusion reactor operation. In this work, deuterium (D) permeation through CLAM steel, CLAM/CLAM and CLAM/Fe-Cr-Al samples prepared by hot isostatic pressing (HIP) are tested in a linear plasma device. Only the downstream surfaces of the samples are oxidized with controlled atmosphere to form permeation barrier. No significant effect on D diffusion and penetration can be observed for the joining interfaces, while the dense oxide layer at the downstream side plays an important role in suppressing D permeation. The downstream surface oxidization of CLAM/Fe-Cr-Al is found to effectively reduce D permeation flux by a factor up to 1000.
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