Self-healing oxidation-resistant carbon structure

Details Self-healing oxidation-resistant carbon structure Self-healing oxidation-resistant carbon structure

1984-04-09

1986-07-08

McCamish, Marion C.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including grain, strips, or filamentary elements in...

428294, 428408, B32B 512

Patent

active

045992568

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: 4164601 (1979-08-01), Shaffer
patent: 4515860 (1985-05-01), Holzl

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