A356.1 Aluminium alloy reinforced with Nano-sized ZrO2 particle are widely used for high performance applications such as automotive, military, aerospace, and electric industries because of their improved physical and mechanical properties. In this research, Zirconium Oxide (ZrO2) Nano particle were synthesized by Solution Combustion Synthesis process. Prepared Nano particles were characterized by Powder X-ray diffraction (PXRD). Nano sized Zirconium Particle were reinforced with A356.1

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... m alloy with varying Wt. % such as 2.0, 2.5, 3.0 and 3.5 via stir casting Technique at a constant stirring speed of 150 rpm. The composites were then characterized by scanning electron microscopy (SEM). Wear tests were carried out at Varying Wt. % ratios with varying Conditions of Speed, Load and Time. The results reveal that the Nano Metal Matrix Composite (NMMC)'s containing 3.5 Wt.% reinforcement particle has improved wear properties.