Silicon carbide filaments bearing a carbon layer and a titanium

Details Silicon carbide filaments bearing a carbon layer and a titanium Silicon carbide filaments bearing a carbon layer and a titanium

1992-07-17

1993-08-24

Beck, Shrive

Stock material or miscellaneous articles

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

Rod, strand, filament or fiber

427569, 427576, 427577, 427249, 427250, 4272557, 2041921, 20429805, 20429826, 501 91, 501 95, 428367, 428368, 428381, 428386, 428389, 428408, 428472, 428698, 428699, 428704, B32B 900, C23C 1630, C23C 1650, C23C 1438

Patent

active

052387410

ABSTRACT:
Silicon carbide filaments are coated to protect them from attack by a titanium matrix material when incorporating them into a metal matrix composite. The coating method comprises coating the filaments firstly with a carbon layer and then with a titanium carbide or boride layer whose carbon or boron content decreases progressively from its interface with the carbon layer to its exterior surface. A layer of titanium or a titanium based alloy may be provided on the titanium carbide or boride layer to facilitate incorporation into a metal matrix. Preferably, the layers are applied by sputter ion plating.

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