Method for making a carbon-carbon composite
AssigneeApplied Sciences, Inc.
InventorsJyh-Ming Ting, Max Laverne Lake
Life of this patent
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Abstract
A carbon-carbon composite is provided comprising a preform containing interwoven mats of graphitized vapor grown carbon fibers. The mat comprises semi-aligned, semi-continuous vapor grown carbon fibers which have been interwoven in situ during growth. The preferred method of producing the carbon-carbon composite includes the steps of densifying the preform by depositing pyrolytic carbon into the interstices of the preform by chemical vapor infiltration or pitch infiltration. The resulting carbon-carbon composite has a thermal conductivity of between about 900 W/m-K and 1000 W/m-K and is useful as a component in electronic devices, aircraft, spacecraft, and other thermal management applications.
Claims11
A method for making a carbon-carbon composite comprising the steps of:
- providing a preform including a plurality of mats, each of said mats including interwoven, graphitized vapor grown carbon fibers having randomly spaced junctions between individual fibers, said preform having interstices therein;
- and
- densifying said preform by depositing pyrolytic carbon into the interstices of said preform to produce a carbon-carbon composite,
- wherein said vapor grown carbon fibers are interwoven to have said randomly spaced junctions between individual fibers during in situ growth of said vapor grown carbon fibers.
Dependencies are inferred from the claim text.