Reactive processing and mechanical properties of Al/SiCP composite

The reactive process for Al/SiC_P composite was studied. SiC particles were in-situ coated by the exothermal reaction of SiC-Ti powder compact in Al melt bath, and easily incorporated into Al melt. The detailed study was carried out to understand the microstructures of the reacted SiC particles. During the reaction and consequent mixing, the successive processes include in-situ coating on the reacted SiC particles, coat dissolution and SiC_P splitting. The tensile mechanical properties of 6013Al/SiC_P composite processed by the present technology showed that the reacted SiC_P considerably reinforced the 6013 matrix. Foundation item: The Key Program of the 9th Five-year Plan of China(No. 95-YS-005) Biography of the first author: CHEN Kang-hua, professor, born on Aug. 30, 1962, received Ph. D degree in 1991, majoring in Al alloy, Al matrix composite and powder metallurgy.