Self-healing oxidation-resistant carbon structure
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United States of America Patent
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Jul 8, 1986
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N/A
app pub date -
Apr 9, 1984
filing date -
Sep 29, 1982
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Expired
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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.
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