CVD SiC pretreatment for carbon-carbon composites

Details CVD SiC pretreatment for carbon-carbon composites CVD SiC pretreatment for carbon-carbon composites

1982-06-24

1984-01-10

Bell, James J.

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Rod, strand, filament or fiber

264 81, 423345, 427249, 428408, B32B 900

Patent

active

044254075

ABSTRACT:
Carbon-carbon composites are prepared to receive a subsequent protective coating by having a thin coating (0.1 to 5 mils) of chemically vapor deposited (CVD) SiC applied to its surface. The SiC layer improves the performance of subsequent protective coatings (especially pack produced SiC conversion coatings), especially in the case of carbon-carbon composites having a negative coefficient of thermal expansion.

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