Metal matrix composite materials are composed of an element or an alloy matrix in which a second phase is embedded and distributed to achieve some property improvement. Based on the size, shape and amount of the second phase, the composite property varies. It has outstanding benefits due to the combined metallic and ceramic properties, thereby yielding improved physical and mechanical properties. Actually, it represent a new generation of engineering materials in which a strong ceramic reinforcement is incorporated into a metal matrix to improve its properties including specific strength, specific stiffness, wear resistance, corrosion resistance and elastic modulus. It combine the metallic properties of matrix alloys such as ductility and toughness with ceramic properties of reinforcements like high strength and high modulus, leads to greater strength in shear and compression and higher service-temperature capabilities. Thus, they have significant scientific, technological and commercial importance. In this paper, fabrication methods, mechanical properties, and industrial applications of different types of metal matrix composites are discussed in a comprehensive manner.

Keywords: Metal matrix composites, ceramic particulate composites, discontinuous fibre reinforced composites, mechanical properties, industrial applications