Gas-driven permeation of deuterium through tungsten with different microstructures

被引：18

作者：

Liu, Feng ^{[1
]}

Zhou, Haishan ^{[1
]}

Xu, Yuping ^{[1
]}

Li, Xiao-Chun ^{[1
]}

Zhao, Mingzhong ^{[1
]}

Zhang, Tao ^{[2
]}

Xie, Zhuoming ^{[2
]}

Yan, Qing-Zhi ^{[3
]}

Zhang, Xiaoxin ^{[3
]}

Ding, Fang ^{[1
]}

Liu, Songlin ^{[1
]}

Luo, Guang-Nan ^{[1
,4
,5
]}

机构：

[1] Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China

[2] Chinese Acad Sci, Inst Solid State Phys, Hefei 230031, Peoples R China

[3] Univ Sci & Technol Beijing, Inst Nucl Mat, Beijing 100083, Peoples R China

[4] Chinese Acad Sci, Hefei Sci Ctr, Hefei 230031, Peoples R China

[5] Hefei Ctr Phys Sci & Technol, Hefei 230031, Peoples R China

来源：

FUSION ENGINEERING AND DESIGN | 2016年 / 113卷

基金：

中国国家自然科学基金;

关键词：

Tungsten; Hydrogen isotopes; Permeation; Diffusion; Fusion materials; TRITIUM PERMEATION; HYDROGEN; DIFFUSION; INVENTORY; BLANKET; ALLOYS; IRON; WALL;

D O I：

10.1016/j.fusengdes.2016.09.003

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

Permeation behavior of deuterium (D) through various tungsten (W) materials, including rolled, annealed, recrystallized W and ZrC/La2O3-dispersion strengthened W, has been studied. Experiments were performed using a gas-driven permeation facility in the temperature range of 700-1000 K. The permeability of D was not sensitive to the dislocations/vacancies or ZrC/La2O3 phases in W, and the measured permeation values are comparable to Frauenfelder and Zahkarov's data. The diffusivity of D, however, is microstructure dependent. The higher the density of defects was, the lower the effective diffusivity was measured. These results imply that dislocations/vacancies or small amounts of ZrC/La2O3 phases in W will not influence the hydrogen isotopes steady state permeation flux through the first wall. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：216 / 220

页数：5

共 24 条

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