PROCESS FOR THE MANUFACTURE OF A CARBON-BASED CERAMIC COMPOSITE MATERIAL FIBER CONTAINING SILICON CARBIDE, OR BASED ON SILICON CARBIDE.

摘要

The invention relates to a method of manufacturing a carbon fiber reinforced ceramic composite material containing a silicon carbide (C / C-SiC) fraction, wherein a C / C blank, which comprises a matrix of Carbon fiber-embedded carbon is infiltrated with liquid silicon in order to transform the carbon partly into silicon carbide. The silicon used for the infiltration contains from 3 to 15 mol% of boron. The invention also relates to a method of manufacturing a silicon carbide (SiC / SiC) fiber-reinforced ceramic composite material, wherein a SiC / C blank, which comprises a carbon matrix incorporating carbide fibers. of silicon, is infiltrated with liquid silicon in order to transform the carbon partly into silicon carbide, the silicon used for the infiltration containing a fraction of 3 to 15 mol% of boron.