Mechanical Properties of C/SiC Composites via Precursor Pyrolysis with Pretreated Carbon Fiber
2007 ◽
Vol 336-338
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pp. 1245-1247
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Keyword(s):
3D C/SiC composites were fabricated by polycarbosilane (PCS) infiltration and pyrolysis process. The influence of pretreatment of carbon fiber, including pyrolytic carbon coating and thermal treatment, on mechanical properties of C/SiC composites was investigated. The results showed that the composites without fiber pretreatment had a flexural strength of 154MPa and a fracture toughness of 4.8 MPa•m1/2, while those with carbon coating or thermal treatment had much higher strength and toughness, that is, more than 400MPa and 15MPa•m1/2 respectively. Weak interfacial bonding and better in-situ strength of carbon fiber were main reasons for mechanical property improvement with pretreated carbon fiber.
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2008 ◽
Vol 368-372
◽
pp. 1019-1021
Keyword(s):
2006 ◽
Vol 11-12
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pp. 81-84
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2013 ◽
Vol 544
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pp. 43-47
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Keyword(s):
2007 ◽
Vol 336-338
◽
pp. 1291-1293
Keyword(s):
2008 ◽
Vol 368-372
◽
pp. 1737-1739
2019 ◽
Vol 8
(4)
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pp. 527-536
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2020 ◽
Keyword(s):
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