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Fabrication and Properties of Cf/SiC Composites Derived from Polysiloxane Precursor

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Abstract:

Carbon fiber reinforced silicon carbide composites (Cf/SiC) were derived through precursor infiltration pyrolysis route (PIP) at 1600°C in vacuum atmosphere using polysiloxane as precursor. The matrix of Cf/SiC was characterized by X-ray diffraction and elemental analysis. The results show that crystalline β-SiC can be derived at 1600°C in vacuum from polysiloxane. The flexural strength and fracture toughness of polysiloxane derived from Cf/SiC can reach up to 70 MPa and 2.3MPa·m respectively1/2.

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Periodical:

Materials Science Forum (Volume 686)

Pages:

419-422

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.686.419

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Online since:

June 2011

Authors:

Tian Heng Xu, Qing Song Ma, Zhao Hui Chen

Keywords:

Cf/SiC, Composite, Infiltration Pyrolysis Route, Siloxane Resin

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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