Composite material with matrix and reinforcing fibers of carbon

Details Composite material with matrix and reinforcing fibers of carbon Composite material with matrix and reinforcing fibers of carbon

1988-02-23

1989-09-05

Bell, James J.

Stock material or miscellaneous articles

Sheet including cover or casing

428225, 428245, 428260, 428365, 428368, 428378, 428408, B32B 104

Patent

active

048637734

ABSTRACT:
Composite material with matrix and reinforcing fibres of carbon and its production process.
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) (SiO.sub.2 -B.sub.2 O.sub.3).
This unoxidizable material can in particular be used as a heat shield for a spacecraft.

REFERENCES:
patent: 4425407 (1984-01-01), Galasso et al.
patent: 4722762 (1988-02-01), Luhleich et al.
patent: 4795677 (1989-01-01), Gray

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