Oxidation-resistant composite material with carbon fibers...

Details Oxidation-resistant composite material with carbon fibers... Oxidation-resistant composite material with carbon fibers...

C - Chemistry, Metallurgy

04

B

49/92

C04B 35/52 (2006.01) C04B 35/80 (2006.01) C04B 35/83 (2006.01) C04B 41/52 (2006.01) C04B 41/89 (2006.01)

Patent

CA 1326960

ABSTRACT OF THE DISCLOSURE The composite material according to the invention comprises a substrate (2) of carbon fibres covered with a fine silicon carbide coating (6) and embedded in a carbon matrix (4) containing 2 to 10% by weight silicon carbide, an outer silicon carbide covering (10), followed by a first filling of the cracks with silica (14) and a second filling with borosilicate glass (16) (SiO2 - B2O3). This unoxidizable material can in particular be used as a heat shield for a spacecraft.

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