Abstract: The invention provides a method for utilizing the inherent oxygen-blocking characteristics of a barrier coating for a carbon-carbon material by penetrating cracked, porous areas of the coating with an oxygen inhibitor. The inhibitor will complex with active carbon-carbon material sites at the base of the cracks. The resulting system provides very effective oxidation protection at intermediate temperatures of approximately 650.degree. C.

Abstract: Carbon cloth sheaths impregnated with oxidation inhibiting materials are located between drive slots on the periphery of a carbon friction disc to prevent structural degradation of a band of continuous carbon fibers located in the disc through which a braking torque is uniformly distributed throughout the carbon friction disc during frictional engagement. A metal screen is mated to the carbon cloth by a resin binder. The metal screen carbon cloth sheaths or caps may be held on the disc periphery by locating pins to permit a resin binder bond to be established between each cap and associated arcuate segment of the periphery of the carbon friction disc. Anchor pins which hold a series of metal reinforcing plates in a fixed position with the drive slots extend through the walls of the reinforced carbon caps and the carbon friction disc to reduce the possibility of delamination between the reinforced carbon caps and the periphery.