Lanthanum hydride doped tungsten-based coating fabricated by supersonic atmospheric plasma spraying
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- 作者：Qing Yu Houa ; b ; ycwu@hfut.edu.cn" class="auth_mail" title="E-mail the corresponding author ; Lai Ma Luoa ; Zhen Yi Huangb ; Ping Wangb ; Ting Ting Dingb ; Yu Cheng Wua ;
- 关键词：Supersonic atmospheric plasma spraying ; W/La2O3 composite coating ; Rare earth hydrides ; Elastic failure ; Fracture toughness
- 刊名：Surface and Coatings Technology
- 出版年：2016
- 出版时间：15 August 2016
- 年：2016
- 卷：299
- 期：Complete
- 页码：153-161
- 全文大小：1794 K
文摘
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LaH2 was added into W and then deposited by supersonic atmospheric plasma spraying.
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La2O3 formed in the LaH2-doped tungsten-based coating by the transformation of LaH2.
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Oxygen content and porosity of the tungsten coating decreased after LaH2 addition.
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LaH2 addition increased the ability of the tungsten coating to resist elastic fracture.
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Fracture toughness of tungsten coating was improved due to introducing LaH2.