Oxidation Resistance of 2D C/SiC Composites Fabricated by FCVI

Abstract:

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Two-dimensional waved carbon fiber preforms were chemical vapor infiltrated under forced flow, thermal gradient mode for preparation of 2D C/SiC composites. In order to improve the oxidation resistance of the C/SiC composites, B4C powders were added into the preforms and aqueous silica sol-B4C compound coating was claded on the surfaces of composites. It was found that the oxidation resistance of 2D C/SiC composites at temperatures lower than 1273K was improved because of the formation of B2O3 and borosilicate glass by preventing the diffusion of oxygen.

Info:

Periodical:

Key Engineering Materials (Volumes 368-372)

Edited by:

Wei Pan and Jianghong Gong

Pages:

1056-1058

DOI:

10.4028/www.scientific.net/KEM.368-372.1056

Citation:

C. P. Wang et al., "Oxidation Resistance of 2D C/SiC Composites Fabricated by FCVI", Key Engineering Materials, Vols. 368-372, pp. 1056-1058, 2008

Online since:

February 2008

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Price:

$35.00

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