PRODUCTION OF CARBON MATERIAL

摘要

PURPOSE:To improve oxidation and cracking resistances by forming a second coating film of ceramics on a carbon-based first coating film formed on the surface of a carbon-carbon composite material and varying the thermal properties of the carbon in the first coating film. CONSTITUTION:A carbon-based first coating film is formed on the surface of a carbon carbon composite material by vapor phase decomposition. A second coating film of ceramics or ceramics combined with carbon is formed on the first coating film by vapor phase decomposition and the thermal and/or mechanical properties of the carbon in the first coating film are continuously or discontinuously varied. A carbon material having superior oxidation resistance and hardly causing cracking even under thermal load is obtd.