Deposition of improved SiC coatings on carbon-base materials

Details Deposition of improved SiC coatings on carbon-base materials Deposition of improved SiC coatings on carbon-base materials

1984-06-01

1985-10-01

Morris, Theodore

Compositions: coating or plastic

Coating or plastic compositions

Inorganic materials only containing at least one metal atom

501 88, C09D 100

Patent

active

045444129

ABSTRACT:
Carbon-carbon composite materials are provided with significantly enhanced oxidation resistance by the formation of a SiC coating. The coating is produced from a pack containing a small but effective amount of boron. The balance of the pack is preferably based on Al.sub.2 O.sub.3, SiO.sub.2, and Si. The composite to be coated is embedded in the pack and heated to an elevated temperature. The boron addition provides a conversion SiC coating having enhanced resistance to oxidation.

REFERENCES:
patent: 4465777 (1984-08-01), Shuford
patent: 4476164 (1984-10-01), Veltri

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