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Microstructure and phase compositions of silicon carbide coatings prepared by plasma spray-vapor deposition

  • Xi'an Jiaotong University

科研成果: 书/报告/会议事项章节会议稿件同行评审

摘要

Silicon carbide (SiC) is one of the attractive ceramics in respect of its excellent properties both in wear and thermal shock resistance. In this study, SiC coatings were fabricated by Plasma Spray-Vapor Deposition (PS-VD) process under very low pressure. Effect of plasma gas composition on the coating phase composition and microstructure was studied. The coatings were characterized using scanning electron microscopy (SEM) and X-ray diffraction (XRD). The results show that the coatings deposited by Ar/H2 plasma gas presented a composite phase of SiC and Si. Moreover, the content of Si in the coating increased with the increase of the hydrogen content in plasma gas. The deposition of silicon is possibly attributed to the reaction of C and hydrogen species in plasma jet. Thus, it was found that pure dense SiC coating can be obtained by using Ar/H2 plasma gas.

源语言英语
主期刊名International Thermal Spray Conference and Exposition, ITSC 2019
主期刊副标题New Waves of Thermal Spray Technology for Sustainable Growth
编辑F. Azarmi, Y. Lau, J. Veilleux, C. Widener, F. Toma, H. Koivuluoto, K. Balani, H. Li, K. Shinoda
出版商ASM International
541-545
页数5
ISBN(电子版)9781510888005
出版状态已出版 - 2019
活动International Thermal Spray Conference and Exposition: New Waves of Thermal Spray Technology for Sustainable Growth, ITSC 2019 - Yokohama, 日本
期限: 26 5月 201929 5月 2019

丛书

姓名Proceedings of the International Thermal Spray Conference
2019-May

会议

会议International Thermal Spray Conference and Exposition: New Waves of Thermal Spray Technology for Sustainable Growth, ITSC 2019
国家/地区日本
Yokohama
时期26/05/1929/05/19

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