| abstract |
The object of the invention is a process for preparing a materialninterphase from oxides having porosities, intended to bendisposed between a ceramic reinforcing material, in particular fibers, and anglass, ceramic or glass-ceramic matrix, characterized in that it consists of:n n n choose a composition substantially identical to that of the matrixnand / or reinforcing material, so as to limit the diffusion andnhave substantially identical expansion coefficients butnhaving a melting temperature higher than that of the matrix,n n n add to said composition a porosity-generating auxiliary, depositing said composition on the reinforcing material. n n n n n The invention also covers the material obtained, the method of treating a ceramic reinforcing fiber with this interphase material and the method of manufacturing an associated thermostructural material. |