A Review on Role of Processing Parameter in Determining Properties of Silicon Carbide Reinforced Metal Matrix Nanocomposites

The present paper reports a review on study of various processing routes and related mechanical properties of silicon carbide reinforced Metal Matrix Nanocomposites (MMNCs). Physical and mechanical properties that can be obtained with Metal Matrix Nanocomposites (MMNCs) have made them potential candidate for use in aerospace and automobile applications. MMNCs are made by dispersing a ceramic material into a metallic matrix. MMNCs have attracted attention as a result of their low costs and enhanced properties. Various reinforcements used are carbides, nitrides, and oxides. MMNCs manufacturing can be broken into three types - solid, liquid and vapor. Solid state methods include powder metallurgy, liquid state method includes stir casting and squeeze casting whereas vapor state method includes physical vapor deposition and chemical vapor deposition. In comparison with conventional polymer matrix composites, MMNCs are resistant to fire, can operate in wider range of temperatures, do not absorb moisture, have better electrical and thermal conductivity, are resistant to radiation damage, and do not display outgassing. It is expected that the silicon carbide reinforced metal matrix nanocomposites will be a potential candidate for heavy duty applications.