Patent ID: 8206815
Filing Date: 2012-06-26
Classification: B22F,C22C,H01L,Y10T

Abstract:
1. A metal-based carbon fiber composite material, comprising a metal; and a carbon fiber comprising a micron-size carbon fiber and a nano-size carbon fiber, wherein the composite material has a first surface; the micron-size carbon fiber is charged so as to be oriented in one direction parallel to the first surface of the composite material; at least 50% of the micron-size carbon fiber is continuous from one end of the first surface to an opposite other end; 80% of the nano-size carbon fiber is oriented at an angle within 30° with respect to the first surface; the nano-size carbon fiber is oriented randomly in a plane parallel to the first surface; and wherein the composite material comprises an inner region thereof at a certain distance from the first surface, the inner region comprising a smaller amount of the micron-size carbon fiber than that in another region, or being free of the micron-size carbon fiber; and the nano-size carbon fiber has an orientation parallel to the first surface of the composite material.