Process for the manufacture of a carbon fiber reinforced...

Details Process for the manufacture of a carbon fiber reinforced... Process for the manufacture of a carbon fiber reinforced...

C - Chemistry, Metallurgy

04

B

117/162, 117/86

C04B 41/87 (2006.01) C04B 35/571 (2006.01) C04B 35/80 (2006.01) C04B 41/50 (2006.01) C04B 41/89 (2006.01) C23C 16/32 (2006.01)

Patent

CA 2035685

In the process according to the invention, before the ceramic matrix is densified, the carbon fiber reinforcement material is subjected to a thermal treatment in a non-oxidizing environment at a temperature greater than 1300° and less than 2200°C, to act on the bonding between the fibers and the matrix. If a preform of the carbon fiber reinforcement material is formed prior to densification by a matrix, then the thermal treatment may be performed on the preform, prior to densification by the matrix. If the matrix is densified by chemical vapor infiltration inside a furnace, then the thermal treatment may be performed inside the infiltration furnace prior to the densification. The thermal treatment grants a significant improvement in the strength of the resulting composite material.

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