Process for the manufacture of a refractory composite material p

Details Process for the manufacture of a refractory composite material p Process for the manufacture of a refractory composite material p

1991-10-25

1993-09-21

Owens, Terry J.

Coating processes

Coating by vapor, gas, or smoke

Carbon or carbide coating

4272552, 4272557, 4274197, C23C 1632

Patent

active

052467368

ABSTRACT:
The manufacture of a refractory composite material protected against corrosion and comprising fibrous reinforcement densified by a matrix, comprises a step of forming, either within the matrix or at its surface, at least one continuous layer constituted by a ternary silicon-boron-carbon system obtained by chemical vapor deposition or infiltration. The elements silicon and boron are thereby distributed uniformly, with the boron content in the Si-B-C system being not less than 5% in atom percentage.

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"Performance Evaluations of Oxidation-Resistant Carbon-Carbon Composites in Simulated Hypersonic Vehicle Environments", D. M. Barrett et al., pp. 282-297 (1989).

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