Patent ID: 8357423
Filing Date: 2013-01-22
Classification: C04B,F16D

Abstract:
1. A method of making at least one layer of refractory carbide on a accessible surface of a carbon/carbon composite material, the method being characterized in that it comprises: a step of placing the composite material in contact with a reactive composition in solid form containing an atomic proportion greater than or equal to one-third and less than or equal to 95% of a refractory metal that is a precursor of a determined carbide that has a melting temperature higher than 2000° C., together with an atomic proportion of silicon that is greater than or equal to 5% and less than or equal to two-thirds; and a step of impregnating the accessible surface of the carbon/carbon composite material with the reactive composition melted by applying heat treatment at a temperature higher than or equal to the melting temperature of said refractory metal that is a precursor of a determined carbide so as to form a first phase of silicon carbide in contact with the carbon/carbon composite material, and a second phase of the determined carbide; and wherein said first and second phases are formed solely by reaction with the carbon of the carbon/carbon composite material.