Patent ID: 9410228
Filing Date: 2016-08-09
CPC Classification: B22F,C22C

Claim Text:
1. A method of manufacturing an aluminum matrix composite, the method comprising the steps of: pulverizing a solid carbon material into a micrometer size, the solid carbon material being at least one selected from a group consisting of fullerene, carbon nano tube, graphite, carbon black and amorphous carbon; plastically deforming aluminum matrix powders while dispersing the pulverized carbon material into the aluminum matrix powders so as to be dispersed in a nanometer size , thereby obtaining composite powders composed of aluminum/carbon nano material; integrating the composite powders composed of aluminum/carbon nano material, thereby producing a bulk material; and heat-treating the bulk material, thereby forming a composite having therein at least one of aluminum-carbon nano phase particles that are formed by carbons released as a carbon-carbon bonding of the carbon material is broken and aluminum elements of the aluminum matrix, aluminum-carbon nano strips produced by growing-up of the aluminum-carbon nano phase particles, and an aluminum-carbon nano network structure produced by self-assembly of the nano strips, wherein in the aluminum matrix composite, dislocations are fixed around the aluminum-carbon nano phase particles, or grains of the aluminum matrix are micronized or growing-up thereof is inhibited due to the aluminum-carbon nano strips or the aluminum-carbon nano network structure, and wherein the aluminum matrix composite does not contain a carbon compound (Al