Composite article and method of making same

Details Composite article and method of making same Composite article and method of making same

1981-06-15

1983-08-09

Thibodeau, Paul J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Superposed movable attached layers or components

427228, 427249, 4274197, 428245, 428280, 428288, 428367, 428375, 428391, 428408, C23C 1108

Patent

active

043979017

ABSTRACT:
A method of making a composite article and a composite article specifically adapted for use in high temperature, corrosive and errosive environments comprising a carbon fibrous substrate, including a pyrolytic carbon sheath formed about each fiber of the substrate; a metallic carbide, oxide, or nitride compliant coating over the coated fibers of the substrate; and an impermeable metallic carbide, oxide or nitride outer protective layer formed about the entire periphery of the coated substrate. In accordance with the method of the invention, the compliant metallic coating is applied to the fibers in a manner such that any mechanical stresses built-up in the substrate due to a mismatch between the coefficient of thermal expansion of the fibrous substrate and the coating are effectively accomodated.

REFERENCES:
patent: 3925577 (1975-12-01), Fatzer et al.
patent: 4178413 (1979-12-01), DeMunda

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