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Recently, a large number of metal matrix composites have been developed for high-performance applications. The first requirement for superior performance of a composite material is the homogeneous distribution of the reinforcing phase. In particulate-reinforced composites, any agglomeration of reinforcement particles deteriorates the mechanical properties of composite. Stir casting route has been used to achieve homogeneity of particle distribution throughout the matrix. In present study, ZrSiO₄ and TiB₂ particles were incorporated in A356.1 alloy. The size of ZrSiO₄ and TiB₂ particles was 1μm. Reinforcement particles were added to melted aluminum at different temperatures above pure aluminum melting point (750, 850, 950°C). The volume fraction of reinforcement particles was 5%. After addition of reinforcement, stirring was continued for 12min for better distribution and better solidification conditions. The …