ting of solid solution of carbon, boron and nitrogen and outer ceramic layerUS5405560 *Jul 13, 1992Apr 11, 1995Societe Nationale Industrielle Et AerospatialeProcess for the production of a part, particularly a carbon-carbon brake disk and to the part obtainedUS5449529 *Aug 10, 1993Sep 12, 1995Toyo Tanso Co., Ltd.Method for producing composite material mainly composed of carbon and boronUS5454990 *