Preparation of 3D C/SiC-Cu Composites via Precursor Pyrolysis and Property Investigation

Abstract:

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A novel composite, 3D C/SiC-Cu, which contained copper as transpiration agent, was designed and prepared. The influence of copper contents (2.18, 4.86, 6.53vol %) upon the mechanical and anti-ablative properties was investigated. The flexural strengths of three composites were over 450MPa, and fracture toughness over 15.0MPa•m1/2. After being ablated for 35 seconds in flowing oxyacetylene torch environment, the composites remained integral, and the flexural strength and strength retention ratio of the composite increased with the copper content increase. The maximum recession rate of the samples in oxyacetylene torch test was as low as 0.0490mm/s.

Info:

Periodical:

Key Engineering Materials (Volumes 368-372)

Edited by:

Wei Pan and Jianghong Gong

Pages:

1031-1033

DOI:

10.4028/www.scientific.net/KEM.368-372.1031

Citation:

Q. K. Wang et al., "Preparation of 3D C/SiC-Cu Composites via Precursor Pyrolysis and Property Investigation", Key Engineering Materials, Vols. 368-372, pp. 1031-1033, 2008

Online since:

February 2008

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Price:

$35.00

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