Abstract: This paper describes the brake property of brake discs carbon-carbon composite. The brake property of full-scale brake discs carbon-carbon composite was tested under different energy, brake pressure and environmental conditions using a laboratory dynamometer. Results indicate that the brake property was decreased as brake energy, brake pressure and environmental humidity were increased. The static coefficient of carbon brake discs is much less than that of steel (approx 50%). As the temperatures of carbon brake discs was increased, the static coefficient was decreased.

Key words: carbon discs, brake property, composites