Thermal shock behaviour of blisters on W surface during combined steady-state/pulsed plasma loading
作者: Y.Z. JiaW. LiuB. XuG.-N. LuoC. LiS.L. QuT.W. MorganG. De Temmerman
作者单位: 1Laboratory of Advanced Materials, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, People’s Republic of China
2Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People’s Republic of China
3FOM Institute DIFFER-Dutch Institute for Fundamental Energy Research, Association EURATOM-FOM, Trilateral Euregio Cluster, 3439 MN Nieuwegein, The Netherlands
4ITER Organization, Route de Vinon-sur-Verdon-CS90 046, 13067 St Paul Lez Durance Cedex, France
刊名: Nuclear Fusion, 2015, Vol.55 (11)
来源数据库: Institute of Physics Journal
DOI: 10.1088/0029-5515/55/11/113015
原始语种摘要: The thermal shock behaviour of blister-covered W surfaces during combined steady-state/pulsed plasma loading was studied by scanning electron microscopy and electron backscatter diffraction. The W samples were first exposed to steady-state D plasma to induce blisters on the surface, and then the blistered surfaces were exposed to steady-state/pulsed plasma. Growth and cracking of blisters were observed after the exposure to the steady-state/pulsed plasma, while no obvious damage occurred on the surface area not covered with blisters. The results confirm that blisters induced by D plasma might represent weak spots on the W surface when exposed to transient heat load of ELMs. The cracks on blisters were different from the cracks due to the transient heat loads reported before, and they were...
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  • blisters 气泡
  • steady 稳定的
  • state 状态
  • plasma 深绿玉髓
  • blistered 泡状的
  • surface 
  • loading 加负载
  • combined 组合
  • behaviour 性质
  • grains 谷粒