Oxidation resistant carbon-carbon composites

Details Oxidation resistant carbon-carbon composites Oxidation resistant carbon-carbon composites

1982-09-29

1986-09-23

Morgenstern, Norman

Coating processes

Solid particles or fibers applied

Applying superposed diverse coatings or coating a coated base

264 295, 427203, 427204, 427205, 427249, 4272554, 427380, B05D 136

Patent

active

046135227

ABSTRACT:
An oxidation resistant carbon-carbon composite (31) including a plurality of graphite fibers (13) within a carbonized (graphitized) matrix (14). A first material including boron (16) and a second material including silicon (18) are applied thereto. Heating the composite in the course of service use to a temperature at which the composite cracks enables the boron and silicon to combine to provide a borosilicate sealant of sufficiently low viscosity for sealing cracks in the composite.

REFERENCES:
patent: 3738906 (1973-06-01), Olcott
patent: 3925577 (1975-12-01), Fatzer et al.
patent: 4101354 (1978-07-01), Shaffer
patent: 4119189 (1978-10-01), Ehrenreich
patent: 4321298 (1982-03-01), Shaffer et al.

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