Characterization of Aluminum Metal-Matrix Composite with SiC and B4C Reinforcement with Different Weight Percentage

Abstract

Metal Matrix Composites (MMCs) have been prepared by compo casting method. The effect of matrix material on the wettability/compatibility of refinement with matrix is studied. Silicon and boron ceramic particles were used as reinforcement in aluminum matrices. The study of density, micro-hardness and the tensile strength has been done in order to characterize the same. It is found that Al-SiC MMC shows an increase in density with increasing weight percentage of SiC as reinforcement; however, the same Al with B₄C shows a decreasing trend. Vicker’s hardness of composites was measured. The hardness of composite increased as both percentage of both reinforcement increased. Tensile strength is also increased as increased content of reinforcement.