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Research of PS-W Coating and Lanthanum oxide Alloy as Plasma Facing Material
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Xuzhou University of Technology

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    Abstract:

    The paper introduced the fabricating technology of tungsten plasma facing material (W-PFM), such as plasma spraying technology and powder metallurgy with dispersed Lanthanum oxide (La2O3). And it was studied that the micro-structure and the main performances of tungsten materials as PFM. The results indicate that VPS-W coating has the better properties compared to APS-W coating: the lower porosity, the better thermal conductivity, the lower impurity content and the better heat flux performance. It can withstand 100 fatigue cycles under the heat flux of 10MW/m2 and is more appropriate for plasma facing material. La2O3 particles can hold back W particle growing and enhance the strength of tungsten, which are helpful to improve thermal performance of W PFM. And W-1wt.%La2O3 as PFM is suitable under the heat flux of no more 6MW/m2.

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[Chong Fali, Chen Junling, Zheng Xuebin. Research of PS-W Coating and Lanthanum oxide Alloy as Plasma Facing Material[J]. Rare Metal Materials and Engineering,2023,52(2):645~650.]
DOI:10.12442/j. issn.1002-185X.20220054

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History
  • Received:January 19,2022
  • Revised:February 10,2022
  • Adopted:March 07,2022
  • Online: March 09,2023
  • Published: February 28,2023