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

被引:1
作者
Wang, Lu [1 ,2 ]
Zhou, Hai-Shan [1 ,2 ]
Liu, Hao-Dong [1 ,2 ]
Xu, Yu-Ping [1 ,2 ]
Wang, Wan-Jing [1 ,2 ]
Li, Yan-Fen [3 ]
Luo, Guang-Nan [1 ,2 ]
机构
[1] Chinese Acad Sci, Hefei Inst Phys Sci, Inst Plasma Phys, Hefei 230031, Peoples R China
[2] Univ Sci & Technol China, Hefei 230026, Peoples R China
[3] Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
基金
中国国家自然科学基金;
关键词
tritium permeation barrier; plasma-driven permeation; deuterium; hot isostatic pressing; aluminum oxidation; DEUTERIUM PERMEATION; BEHAVIOR; OXIDATION;
D O I
10.1088/1402-4896/ac3b6b
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
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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页数:6
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