Ceramic matrix composites with BN interface

Details Ceramic matrix composites with BN interface Ceramic matrix composites with BN interface

1997-06-27

1999-03-09

Turner, Archene

Stock material or miscellaneous articles

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

Rod, strand, filament or fiber

428364, 428366, 428375, 428379, 428699, 428701, 428702, 428704, 478380, 478384, 478697, 478698, B32B 908

Patent

active

058798030

ABSTRACT:
There is provided Ceramic matrix composites comprising fibers, BN coating applied to the fibers, the BN coating being composed of BN and one of Y.sub.2 O.sub.3, Sc.sub.2 O.sub.3, ZrO.sub.2 and lanthanoid family oxide or combinations thereof, and matrices interposed between the fibers. There is also provided Ceramic matrix composites comprising, fibers, BN coating applied to the fibers, the BN coating is composed of BN and coated with one of Y.sub.2 O.sub.3, Sc.sub.2 O.sub.3, ZrO.sub.2 and lanthanoid family oxide or combinations thereof, and matrices interposed between the fibers. The ceramic matrix composites in accordance with the present invention is capable of being used at 1000 degrees centigrade or greater in air.

REFERENCES:
patent: 4605588 (1986-08-01), Simpson et al.
patent: 4642271 (1987-02-01), Rice
patent: 4869943 (1989-09-01), Corbin et al.
patent: 4885199 (1989-12-01), Corbin et al.
patent: 5164341 (1992-11-01), Chyung et al.

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