Preparation and Properties of 2D C/SiC Composites by CLVD Processing

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Abstract:

Chemical liquid-vapor deposition (CLVD) process is a new style of fast densification, which combines the advantages of PIP process and CVI process. 2D C/SiC composites were prepared at 800~1200°C for 3~4 hours with liquid polycarbosilane and carbon fiber cloth by CLVD process with induction heating, and had the density of 1.7 g/cm3, the flexural strength of 84.6MPa, and the flexural modulus of 20GPa. XRD pattern of the sample proved that the matrix was β-SiC. It was found that SiC deposited mainly around single fiber instead of among fiber bundles and layers.

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Materials Science Forum (Volumes 675-677)

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779-782

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February 2011

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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