Patent ID: 8597772

Claim:
A carbon-carbon composite material comprising: a first corrugated carbon fiber preform, wherein the first corrugated carbon fiber preform comprises a plurality of carbon fibers and defines a first surface including a first ridge; a second corrugated carbon fiber preform, wherein the second corrugated carbon fiber preform comprises a plurality of carbon fibers and defines a first surface including a first groove, wherein the first ridge is substantially aligned with the first groove, and wherein the first surface of the first corrugated carbon fiber preform is in contact with the first surface of the second corrugated carbon fiber preform; and a carbon matrix around the plurality of carbon fibers of the first corrugated carbon fiber preform and the second corrugated carbon fiber preform, wherein the carbon matrix bonds the first corrugated carbon fiber preform and the second carbon fiber preform, wherein each of the carbon fibers of the plurality of carbon fibers defines a respective long axis, wherein the carbon-carbon composite material defines a substantially planar layer, and wherein at least some of the long axes of the carbon fibers of the plurality of carbon fibers are oriented out of the plane of the carbon-carbon composite material.