초록 ▼

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

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.

대표청구항 ▼

An oxidation resistant carbon-carbon composite comprising: (a) plurality of graphite fibers therein and carbonized (graphitized) matrix, (b) a first material including boron disposed throughout said graphitized matrix, (c) a second material including silicon applied thereto as a coating on the exter

An oxidation resistant carbon-carbon composite comprising: (a) plurality of graphite fibers therein and carbonized (graphitized) matrix, (b) a first material including boron disposed throughout said graphitized matrix, (c) a second material including silicon applied thereto as a coating on the exterior surfaces of the graphite fibers and graphitized matrix, (d) whereby heating said composite in the course of service use, to a temperature at which said composite cracks enables said boron and silicon to combine to provide a borosilicate sealant of sufficiently low viscosity for sealing cracks in said composite.