物理化学学报 >> 2015, Vol. 31 >> Issue (Suppl): 54-58.doi: 10.3866/PKU.WHXB2014Ac15

研究论文 上一篇    下一篇

通过3He(d, p)4He核反应研究He在Ti3SiC2中的扩散行为

戚强1,4, HUANG Mengbing2, 张海斌3, 施立群1   

  1. 1 复旦大学现代物理研究所, 应用离子束教育部重点实验室, 上海200433;
    2 纽约州立大学奥尔巴尼分校, 纳米科学与工程学院离子束实验室, 奥尔巴尼12203, 纽约, 美国;
    3 中国工程物理研究院核物理与化学研究所, 四川绵阳610003;
    4 中国科学院等离子体物理研究所, 合肥230031
  • 发布日期:2015-05-20
  • 通讯作者: 施立群 E-mail:Lqshi@fudan.edu.cn

Investigation of Helium Diffusion Behavior in Ti3SiC2 by 3He (d, p) 4He Nuclear Reaction

QI Qiang1,4, HUANG Mengbing2, ZHANG Hai-Bin3, SHI Li-Qun1   

  1. 1 Applied Ion Beam Physics Laboratory, Institute of Modern Physics, Fudan University, Shanghai 200433, P. R. China;
    2 Ion Beam Laboratory, State University of New York (SUNY) at Albany & SUNY College of Nanoscale Science and Engineering, Albany 12203, New York, U. S. A.;
    3 Institute of Nuclear Physics and Chemistry, Chinese Academy of Engineering Physics, Mianyang 610003, Sichuan Province, P. R. China;
    4 Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, P. R. China
  • Published:2015-05-20
  • Contact: SHI Li-Qun E-mail:Lqshi@fudan.edu.cn

摘要:

对于未来聚变和裂变能源装置, 第一壁/包层的结构材料处于严酷的使用环境. 其中嬗变产物氢氦对结构材料的作用是所关心的重要问题之一. Ti3SiC2是一种新型的高性能综合性陶瓷材料——金属陶瓷材料, 具有十分优异的耐高温抗辐照特性. 本文通过3He (d, p) 4He核反应方法获得了400 至1100 ℃ He在Ti3SiC2中的扩散系数以及氦在材料中的深度分布, 并对氦的扩散行为进行了讨论. 发现氦在材料中的演化和内应力的共同作用导致了氦分布的变化.

关键词: Ti3SiC2 MAX相, 氦扩散行为, 3He (d, p) 4He核反应, 氦泡, 辐照损伤

Abstract:

In fusion and fission energy devices, the first wall/cladding structure materials are in a harsh environment. The effect of hydrogen and helium produced by transmutation on the structural materials is one of the critical problems for future nuclear reactors. Ti3SiC2 is a high performance ceramic material that combines the advantages of ceramics and metals, and it has excellent resistance to irradiation damage. In this work, the helium diffusion constants and concentration profiles in Ti3SiC2 from 400 to 1100 ℃ were obtained using the resonant 3He (d, p) 4He nuclear reaction, and the helium diffusion behavior is also discussed. The concentration profiles were found to change because of the interaction between helium evolution and stress in the material.

Key words: Ti3SiC2 MAX phase, Helium diffusion behavior, 3He (d, p) 4He nuclear reaction, Helium bubble, Irradiation damage

MSC2000: 

  • O641