Gas-and plasma-driven hydrogen permeation behavior of stagnant eutectic-solid GaInSn/Fe double-layer structure  

作　　者：荆文娜 刘建星 郭恒鑫 王思蜀 毕海林 陈波 陈建军 王宏彬 韦建军 叶宗标 芶富均 Wen-Na Jing;Jian-Xing Liu;Heng-Xin Guo;Si-Shu Wang;Hai-Lin Bi;Bo Chen;Jian-Jun Chen;Hong-Bin Wang;Jian-Jun Wei;Zong-Biao Ye;Fu-Jun Gou(Key Laboratory of Radiation Physics and Technology of the Ministry of Education,Institute of Nuclear Science and Technology,Sichuan University,Chengdu 610064,China;Institute of Atomic and Molecular Physics,Sichuan University,Chengdu 610064,China;Hefei University of Technology,Hefei 230009,China)

机构地区：[1]Key Laboratory of Radiation Physics and Technology of the Ministry of Education,Institute of Nuclear Science and Technology,Sichuan University,Chengdu 610064,China [2]Institute of Atomic and Molecular Physics,Sichuan University,Chengdu 610064,China [3]Hefei University of Technology,Hefei 230009,China

出　　处：《Chinese Physics B》2023年第4期482-492,共11页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China(Grant Nos.11905151 and 11875198);the National Key Research and Development Program of China(Grant No.2022YFE03130000)。

摘　　要：Gas-driven permeation(GDP)and plasma-driven permeation(PDP)of hydrogen gas through Ga In Sn/Fe are systematically investigated in this work.The permeation parameters of hydrogen through Ga In Sn/Fe,including diffusivity,Sieverts'constant,permeability,and surface recombination coefficient are obtained.The permeation flux of hydrogen through Ga In Sn/Fe shows great dependence on external conditions such as temperature,hydrogen pressure,and thickness of liquid Ga In Sn.Furthermore,the hydrogen permeation behavior through Ga In Sn/Fe is well consistent with the multilayer permeation theory.In PDP and GDP experiments,hydrogen through Ga In Sn/Fe satisfies the diffusion-limited regime.In addition,the permeation flux of PDP is greater than that of GDP.The increase of hydrogen plasma density hardly causes the hydrogen PDP flux to change within the test scope of this work,which is due to the dissolution saturation.These findings provide guidance for a comprehensive and systematic understanding of hydrogen isotope recycling,permeation,and retention in plasma-facing components under actual conditions.

关 键 词：liquid metals DOUBLE-LAYER gas-driven permeation plasma-driven permeation 

分 类 号：TG14[一般工业技术—材料科学与工程] O53[金属学及工艺—金属材料]