Boron coated silicon carbide filaments

Details Boron coated silicon carbide filaments Boron coated silicon carbide filaments

1983-06-17

1984-11-06

Kendell, Lorraine T.

Stock material or miscellaneous articles

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

Rod, strand, filament or fiber

427255, 428375, D02G 300

Patent

active

044812574

ABSTRACT:
Silicon carbide filament is produced by overcoating a carbon monofilament core using continuous process vapor deposition. The deposition takes place by passing the carbon monofilament through a reactor into which gaseous sources of silicon and carbon are injected. At a deposition temperature of about 2370.degree. F., a deposit of fine grained beta crystals of silicon carbide are formed. Application of a thin protective coating of boron-based refractory material on the surface of the silicon carbide filament both adds strength and provides a surface which is readily bonded to both metals and epoxy matrix materials during the casting of composite structures.

REFERENCES:
patent: 3811940 (1974-05-01), Douglas et al.
patent: 4068037 (1978-01-01), Debolt et al.

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