Silicon carbide fibers with boron nitride coatings

Details Silicon carbide fibers with boron nitride coatings Silicon carbide fibers with boron nitride coatings

1998-05-21

2000-03-21

Beck, Shrive

Coating processes

Heat decomposition of applied coating or base material

427227, 42725526, 4272254, 4273761, 427399, B05D 302, B05D 304

Patent

active

060400080

ABSTRACT:
A process for forming a uniform, boron nitride coating on a boron-doped, refractory carbide body, and in particular on a sintered, boron-doped, silicon carbide fiber, where the body is exposed to a nitrogen-containing atmosphere at a temperature equal to or greater than the densification or sintering temperature. The coated fibers exhibit no loss in strength properties and show improved creep resistance.

REFERENCES:
patent: 4196233 (1980-04-01), Bitzer et al.
patent: 4605588 (1986-08-01), Simpson et al.
patent: 4642271 (1987-02-01), Rice
patent: 5292830 (1994-03-01), Funayama et al.
patent: 5354602 (1994-10-01), Stranford et al.
patent: 5792416 (1998-08-01), Sacks et al.

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