AN Yb2Si2O7 oxidation resistance coating for c/c composites by supersonic plasma spray

Lingjun Guo, Minna Han, Hejun Li, Kezhi Li, Qiangang Fu

科研成果: 书/报告/会议事项章节会议稿件同行评审

2 引用 (Scopus)

摘要

An efficient glass coating was prepared on the surface of SiC coated C/C composites by supersonic plasma spray to prevent them from oxidation at 1873 K. The structure of the as-obtained coating was characterized by X-ray diffraction, scanning electron microscopy and isothermal oxidation test at 1873 K in air, respectively. Results show that the achieved Yb2Si2O 7 outer coating was dense and it was bonded well with the SiC inner layer such that the oxidation protective ability and the thermal shock resistance were improved. After oxidation in air at 1873 K for 328 h and thermal cycling between 1873 K and room temperature for 17 times, the mass gain rate of the coated sample was only 0.28%. A dense layer about 5 μm between the SiC inner coating and the Yb2Si2O7 outer coating was in favor of the enhancement of the oxidation resistance of the SiC/Yb 2Si2O7 coating for C/C composites.

源语言英语
主期刊名Advanced Ceramic Coatings and Materials for Extreme Environments - A Collection of Papers Presented at the 35th International Conference on Advanced Ceramics and Composites, ICACC
出版商American Ceramic Society
85-90
页数6
版本3
ISBN(印刷版)9781118059883
DOI
出版状态已出版 - 2011
活动Advanced Ceramic Coatings and Materials for Extreme Environments - 35th International Conference on Advanced Ceramics and Composites, ICACC - Daytona Beach, FL, 美国
期限: 23 1月 201128 1月 2011

出版系列

姓名Ceramic Engineering and Science Proceedings
编号3
32
ISSN(印刷版)0196-6219

会议

会议Advanced Ceramic Coatings and Materials for Extreme Environments - 35th International Conference on Advanced Ceramics and Composites, ICACC
国家/地区美国
Daytona Beach, FL
时期23/01/1128/01/11

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