Carbon-silicon carbide composite material and method for the pre

Details Carbon-silicon carbide composite material and method for the pre Carbon-silicon carbide composite material and method for the pre

1993-08-26

1994-07-05

Group, Karl

Compositions: ceramic

Ceramic compositions

Carbide or oxycarbide containing

501 99, 264 65, C04B 3558

Patent

active

053267320

ABSTRACT:
Proposed is a novel composite material consisting of carbon as the matrix phase and particles of silicon carbide having an acicular or needle-like particle configuration uniformly and isotropically dispersed in the matrix phase as the reinforcing dispersed phase, in which the needle-like silicon carbide particles are formed by the in situ crystal growth from particles of .beta.-silicon carbide in a shaped body of a powder blend consisting of particles of carbon and the powder of .beta.-silicon carbide with further admixture of boron or a boron compound which promotes crystal growth of silicon carbide to have an acicular particle configuration.

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