首页|High-temperature oxidation resistance of Si-coated C/SiC composites
High-temperature oxidation resistance of Si-coated C/SiC composites
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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.
Jie Xiao、Hua-Yue Zhang、Sheng-Kai Gong、Hui-Bin Xu、Hong-Bo Guo
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School of Materials Science and Engineering, Beihang University, Beijing 100191, China
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
National Natural Science Foundations of ChinaNational Natural Science Foundations of ChinaNational Natural Science Foundations of China
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