METHOD FOR PRODUCING A COMPOSITE MATERIAL WITH A CARBIDE MATRIX

摘要

A method for densifying a porous substrate (50) by means of a matrix, said method comprising the steps of: - fractionation of the porosity present in the porous substrate in such a way as to form, in said substrate, a microporosity network, said fractionation being carried out with a filling composition comprising at least one carbon phase or one carbide phase accessible via the microporosity network, - reactive gaseous-phase chemical infiltration of the microporosity network formed by the filling material, said infiltration being carried out with a reactive gaseous composition free of carbon and comprising at least one element capable of reacting with the carbon of the filling composition in order to form a carbide (53).