Microstructure and oxidation resistance of SiC coated carbon-carbon composites via pressureless reaction sintering

被引：26

作者：

Ma, CCM ^{[1
]}

Tai, NH ^{[1
]}

Chang, WC ^{[1
]}

Chao, HT ^{[1
]}

机构：

[1] NATL TSING HUA UNIV, CTR MAT SCI, HSINCHU 30043, TAIWAN

来源：

JOURNAL OF MATERIALS SCIENCE | 1996年 / 31卷 / 03期

关键词：

D O I：

10.1007/BF00367881

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The effects of processing parameters on the microstructure and oxidation resistance of silicon carbide (SiC) coated carbon-carbon (C-C) composites were investigated. C-C composites were made from plain woven carbon cloths and phenolic derived carbon matrices in the laboratory. Pressureless reaction sintering has been used to apply SiC coating to C-C composites using epoxy resin and silicon powder as the precursor. Results showed that the oxidation resistance of C-C composites was enhanced by coating with SiC. The pressureless reaction sintering process exhibits good processability. beta-SiC was formed after heat treatment at 1800 degrees C and the alpha-SiC formed after heat treatment at 2200 degrees C. The SiC coated C-C composites exhibit good oxidation resistance at 1000 degrees C for 100 h under the test conditions.

引用

页码：649 / 654

页数：6

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