High-temperature oxidation resistance of Si-coated C/SiC composites

Jie Xiao ¹Hua-Yue Zhang ¹Sheng-Kai Gong ²Hui-Bin Xu ²Hong-Bo Guo²

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作者信息

1. School of Materials Science and Engineering, Beihang University, Beijing 100191, China
2. School of Materials Science and Engineering,Beihang University,Beijing 100191,China;Key Laboratory of High-Temperature Structure Materials and Protective Coatings(Ministry of Industry and Information Technology),Beihang University,Beijing 100191,China
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Abstract

In this paper,Si coatings were sprayed onto C/SiC composite substrates by atmospheric plasma spray-ing(APS).The high-temperature oxidation behavior of the substrate and coating at temperatures of 1100 and 1300 ℃was also studied.The C/SiC ceramic matrix composite will be damaged seriously and even failed due to the oxidation of carbon fibers in matrix.The Si coating effectively improved the oxidation resistance of the C/SiC substrate in the high-temperature oxidation test.The effect of the thickness of the Si coatings on the oxidation resistance was investigated.The 150-pm coating is proved to enable the substrate to have the lowest oxidation weight loss and the best oxidation resistance after static oxidation for 5 h.

Key words

Ceramic matrix composites(CMCs)/Carbon fiber/Si coating/Oxidation/Plasma spray

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基金项目

National Natural Science Foundations of China(51590894)

National Natural Science Foundations of China(51425102)

National Natural Science Foundations of China(51231001)

出版年

2024

稀有金属(英文版)

中国有色金属学会

稀有金属(英文版)

CSTPCDCSCDEI

影响因子：0.801

ISSN：1001-0521

参考文献量8

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