Deuterium permeation and retention behavior in copper-based brazing filler materials

被引：0
|
作者：
Tao Z.-H. [1 ,2 ]
Liu H.-D. [1 ]
Zhao S.-X. [3 ]
Li X.-C. [1 ,2 ]
Liu C.-B. [1 ,2 ]
Zhu Y.-W. [1 ,2 ]
Wang C. [1 ]
Zhou H.-S. [1 ,2 ]
Luo G.-N. [1 ,2 ]
机构：
[1] Institute of Plasma Physics, HFIPS, Chinese Academic of Sciences, Hefei
[2] University of Science and Technology of China, Hefei
[3] State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metal, Lanzhou University of Technology, Lanzhou
来源：
Nuclear Materials and Energy | 2024年 / 40卷
基金：
中国国家自然科学基金;
关键词：
Brazing fillers; Hydrogen isotopes; Permeation; Retention;
D O I：
10.1016/j.nme.2024.101694
中图分类号：
学科分类号：
摘要：
Copper-based brazing filler materials are commonly employed in vacuum brazing techniques to achieve joining of plasma-facing components for ITER. In this work, gas-driven permeation (GDP) and thermal desorption spectroscopy (TDS) experiments have been performed to study the hydrogen isotopes permeation and retention behavior in two types of brazing filler materials (CuMnNi and CuGeNi metals). Experimental results show that CuMnNi filler exhibits the similar deuterium (D) permeability with CuMnNi filler but lower diffusion coefficients than CuGeNi filler. Three distinct peaks are observed between 380 K and 980 K for CuMnNi filler. However, no evident desorption peak is observed for CuGeNi filler. CuGeNi filler may be considered as a potential brazing filler material for reducing tritium inventory. © 2024
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