Patent ID: 6406516
Filing Date: 2002-06-18
Classification: C22C

Abstract:
A method for preparing high volume reinforced Al composite by use of a dipping process, comprising the following steps of:mixing 20-50 wt % of exothermic reaction-causing powders consisting of Ti and C or Ti and B, 20-60 wt % of exothermic reaction-controlling diluent powders, and 5-30 wt % of infiltration-aiding Al or Al alloy powders, to prepare mixture powders; preforming the mixture powders into a predetermined shape; fitting the preformed body in a reaction container, followed by dipping in an Al melt of 700-1,100Â° C., to form a synthesized composite; and separating the synthesized composite from the reaction container after removal from the Al melt, thereby yielding a high volume reinforced Al composite from the powder mixture through such exothermic synthesis in a metal melt that reinforced particles are uniformly distributed while restraining the generation of pores.