Microstructure and mechanical properties of SiC and carbon hybrid fiber reinforced SiC matrix composite

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摘要

Silicon carbide (SiC) matrix composite reinforced by both SiC and carbon fibers ([SiC-C]/pyrolytic carbon [PyC]/SiC) was fabricated by chemical vapor infiltration for reducing matrix microcracks. Microstructure, mechanical properties, and oxidation resistance of the composite were compared with those of C/PyC/SiC and C/PyCHT/SiC composites in which PyC interphase was untreated and heat-treated at 1800°C in argon, respectively. Compared with the C/PyC/SiC composite, (SiC-C)/PyC/SiC composite shows considerable improvements in flexural strength, fracture toughness, and oxidation resistance. The different mechanical behaviors of the three composites were analyzed based on the He and Hutchinson's model.

源语言英语
页(从-至)308-316
页数9
期刊International Journal of Applied Ceramic Technology
8
2
DOI
出版状态已出版 - 3月 2011

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