Method of manufacturing hybrid fiber-reinforced composite nozzle

Details Method of manufacturing hybrid fiber-reinforced composite nozzle Method of manufacturing hybrid fiber-reinforced composite nozzle

1994-08-22

1996-06-11

Beck, Shrive

Coating processes

Coating by vapor, gas, or smoke

Base supplied constituent

427249, C23C 1632

Patent

active

055253725

ABSTRACT:
The conversion of carbon-carbon of a composite material at the surface to licon carbide-hybridized carbon-carbon in accordance with the method of invention is accomplished by reacting the carbon fibers and matrix with silicon monooxide at elevated temperature from about 1500.degree.-1700.degree. C. The conversion of bulk graphite or carbon-carbon composite materials is achieved in 30-60 minutes at 1700.degree. C. With conversion the density is increased from the density of carbon of 1.45 grams/cc to that of silicon carbide of 3.21 grams/cc. The method of reaction in the vapor phase of silicon monooxide with the carbon-carbon bond releases a C atom in exchange for the Si atom with a release of CO from the composite material. Photomicrographic studies indicates a depth of conversion from about 50 to 100 mils. The reaction rate of silicon monooxide increases with increased temperature; therefore, to avoid too rapid a release of the by-product carbon monooxide which might damage the composite material in its escape, the reaction temperature should not exceed 1700.degree. C.

REFERENCES:
patent: 3808087 (1974-04-01), Milewski et al.
patent: 4513030 (1985-04-01), Milewski
patent: 4837073 (1989-06-01), McAllister et al.
patent: 4976899 (1990-12-01), Rousseau et al.
patent: 5017527 (1991-05-01), June-Gunn et al.
patent: 5067999 (1991-11-01), Streckert et al.
patent: 5286565 (1994-02-01), Holzl et al.
patent: 5298311 (1994-03-01), Bentson et al.
patent: 5326595 (1994-07-01), Shuford
patent: 5330789 (1994-07-01), Booth et al.

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