Physical, Mechanical and Morphological Characterization of A356/Si3N4 Nanoparticles Stir Casting Composites

Abstract

A356 alloy based composites are extensively used in different component industries like components of automobile parts owing to pronounced strength to weight ratio. In the current paper, A356/Si₃N₄ nanocomposites are fabricated by means of stir casting by varying Si₃N₄ reinforcement nanoparticles. Silicon Nitride (Si₃N₄) nanoparticles is intermixed to Al powder mechanically to develop their wettability among the particles of A356/Si₃N₄ nanocomposites. The Si₃N₄ nanoparticles is integrated by altering weight percentage. The electomechanical stirring process to produce the vortex is taken up to spread Si₃N₄ nanoparticles in the liquefied matrix dispensed into a permanent mould. Morphological investigation of the composite specimen is accomplished by TEM. Based on the study, it can be acquired that the strengthening by Si₃N₄ nanoparticles promotes the strength and hardness of the fabricated nanocomposites. The physical properties such as density and porosity are also increased due to the presence of Si₃N₄ nanoparticles. The TEM examination discloses the presence of Si₃N₄ nanoparticles in the fabricated composites. Additionally, the current research guidance has ability to afford a monitor to the industrialized preparation of A356/Si₃N₄ nanocomposites.