HIGHLY THERMALLY CONDUCTIVE COMPOSITE MATERIAL

摘要

Disclosed is a composite material which is excellent in thermal conductivity. Specifically disclosed is a composite material wherein layers of a fibrous carbon material which is composed of an extra fine tubular structure of a single-layer or multilayer graphene are present in a base which is composed of a spark plasma sintered body of a metal powder, a mixed powder of a metal and a ceramic, or a ceramic powder. The fibrous carbon material constituting each layer is composed of a mixture obtained by blending a small amount of small-diameter fibers (2) having an average diameter of 100 nm or less in large-diameter fibers (1) having an average diameter of from 500 nm to 100 μm.