| 摘要 |
The invention concerns a method for producing a composite material part comprising a fibrous reinforcement densified by a ceramic matrix, the part having an outer surface and being coated on at least one part of the outer surface of same with a surface coating in solid form comprising an alloy, the method comprising the following steps: a) forming the ceramic matrix of the composite material part by infiltrating the fibrous preform with an infiltration composition in the melted state, the infiltration composition comprising silicon and having a first melting temperature, the infiltration composition being brought into contact with all or part of a first set of fillers present in the fibrous preform, and b) forming the surface coating of the composite material part by infiltrating a second set of fillers and/or a preceramic resin with a coating composition in the melted state, the coating composition having a second melting temperature lower than the first melting temperature and a composition different to that of the ceramic matrix, step b) being initiated after carrying out step a). |
