Publisher： Trans Tech Publications
E-ISSN： 1662-9752|2016|848|32-37
ISSN： 0255-5476
Source： Materials Science Forum, Vol.2016, Iss.848, 2016-04, pp. : 32-37
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Abstract
SiC nanowires were in-situ grown in SiC fiber fabrics by chemical vapor deposition (CVD) process via pyrolysis of polycarbosilane (PCS) at 1300°C and 1400°C, respectively. Then SiCf/SiC composites were fabricated with the fabrics by polymer and infiltration pyrolysis (PIP) process. Single-filament tensile strengths of the SiC fibers heat treated at different temperature were measured. It was indicated that the mechanical property of the KD-ISiC fiber significantly degenerated above 1100°C, especially at 1400°C. Nevertheless, the prepared SiCf/SiC composite with in-situ grown SiC nanowires exhibited good mechanical performance, suggesting that the SiC nanowire is an effective reinforcement for the SiCf/SiC composite.
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