Directly-cooled VPS-W/Cu limiter and its preliminary results in HT-7

  title={Directly-cooled VPS-W/Cu limiter and its preliminary results in HT-7},
  author={Guang-Nan Luo and Min Liu and Kuang Ziqi and Xiaohua Douglas Zhang and Z. S. Yang and Chun-ming Deng and Zhong Cheng Zhang and Junchun Li and Kesong Zhou},
  journal={Journal of Nuclear Materials},
  • G. Luo, Min Liu, +6 authors K. Zhou
  • Published 15 June 2007
  • Materials Science
  • Journal of Nuclear Materials
Tungsten (W) coatings on copper (Cu) substrate have been developed by means of vacuum plasma spraying (VPS) method employing a composition gradient interlayer so as to alleviate mismatch of the physical properties between Cu and W. The gradient interlayer shows dense and lamellar microstructure and the coating surface few microcracks. Directly-cooled VPS-W/Cu plasma-facing component (PFC) can withstand e-beam high heat flux (HHF) irradiation of 20 cycles, 100 s/cycle, and heat loads of 9.6 MW/m… Expand
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