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钨涂层及氧化镧合金面对等离子体材料研究
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1.徐州工程学院;2.中国科学院合肥物质科学研究院;3.中科院硅酸盐研究所

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国家自然科学基金资助(项目号11875230)


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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    摘要:

    本文介绍了等离子体喷涂钨涂层和粉末冶金钨氧化镧合金面对等离子体材料的制备,并对其进行了性能分析,主要包括微观结构、杂质含量、气孔大小及气孔率分布、结合强度、热导率以及热负荷疲劳性能和承受能力。结果显示:真空等离子体喷涂钨涂层性能比大气喷涂钨涂层性能优越,是更为合适的钨涂层制备技术。真空喷涂钨涂层具有较低的气孔率、较高的热导率、较低的杂质含量和较优异的热负荷性能,能够承受10MW/m2、100周次疲劳测试。氧化镧弥散掺杂相具有钉扎作用,能够抑制钨烧结过程中的长大,有效提高钨材料强度,改善热负荷性能,W-1wt.%La2O3材料能够承受6MW/m2的热负荷。

    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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种法力,陈俊凌,郑学斌.钨涂层及氧化镧合金面对等离子体材料研究[J].稀有金属材料与工程,2023,52(2):645~650.[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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历史
  • 收稿日期:2022-01-19
  • 最后修改日期:2022-02-10
  • 录用日期:2022-03-07
  • 在线发布日期: 2023-03-09
  • 出版日期: 2023-02-28