Graphite fiber reinforced silica matrix composite

Details Graphite fiber reinforced silica matrix composite Graphite fiber reinforced silica matrix composite

1984-08-02

1988-12-13

Buczinski, Stephen C.

Compositions: ceramic

Ceramic compositions

Refractory

350609, 350610, 350641, 501 53, 501 63, 501 88, 4289122, C04B 3502, G02B 508

Patent

active

047910763

ABSTRACT:
A graphite fiber reinforced silica matrix composite comprising a plurality of graphite fibers bonded together in a silica matrix comprised of silica, boron phosphate and beta-spodumene modified with a minor amount of an alkaline earth metal oxide is disclosed. The extremely low, nearly zero, coefficient of thermal expansion coupled with the moderate thermal conductivity and low density of the composite make the composite particularly suitable as a substrate material for high energy laser mirrors.

REFERENCES:
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patent: 4212678 (1980-07-01), Chyung et al.
patent: 4285728 (1981-08-01), Babcock et al.
patent: 4314852 (1982-02-01), Brennan et al.
patent: 4410635 (1983-10-01), Brennan et al.
patent: 4451118 (1984-05-01), Stalcup et al.
patent: 4485179 (1984-11-01), Brennan et al.

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