Surface treatment for silicon carbide filaments and product

Details Surface treatment for silicon carbide filaments and product Surface treatment for silicon carbide filaments and product

1989-03-16

1991-06-18

Lesmes, George F.

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Rod, strand, filament or fiber

428367, 428373, 428375, 428391, B32B 900, B32B 1800, D02G 300

Patent

active

050248898

ABSTRACT:
The invention relates to a surface treatment for silicon carbide filaments. A carbon-rich silicon carbide layer or coating is formed over the silicon carbide surface. The ratio of silicon to carbon in the carbon-rich silicon carbide layer varies from 1 (stoichiometric) at the silicon carbide filament interface to about 0.43 (70% carbon, 30% silicon) at the exterior surface of the carbon-rich layer. A preferred method of making the carbon-rich silicon carbide layer is also presented.

REFERENCES:
patent: 4315968 (1982-02-01), Suplinskas
patent: 4340636 (1989-07-01), Debolt

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