Microstructural Characterization and Mechanical Behaviour of SiC and Kaoline Reinforced Aluminium Metal Matrix Composites Fabricated Through Powder Metallurgy Technique

Aluminium metal matrix composites are widely used in the automobile industry due to their superior properties like high strength weight ratio, ductility and better corrosion resistance. In this study, effect of naturally available low-cost kaoline particles on microstructural mechanical behaviour Al- SiC- Kaoline Hybrid composite was investigated. Al-10 % X% (X = 0, 2, 4, 6, 8) samples were fabricated through powder metallurgy technique by applying a compaction pressure 350 MPa. The subjected Density, Hardness, Tensile impact tests study hybrid composite. presence SiC reinforcements confirmed using SEM X-Ray Diffraction analysis. It observed that maximum ultimate tensile ( U.T.S ) Yield Strength Y.S) found be 263 MPa 202 for %SiC-4 %kaoline reinforcement. formation intermetallic compound such as Al2Cu XRD analysis SiC-6 SiC-8 reinforcement which leads decrease Y.S specimens. %SiC-8 decreased 44.4 compared unreinforced harder particles. To fracture mechanism, Scanning Electron Microscopy carried fractured specimens reveal ductile Al, SiC, SiC-2 dimples brittle SiC-4 Kaoline, existence cleavages microcracks. best suitable combination obtained at