Abstract
The primary objective of the present study is to investigate how alumina nanoparticles with a low loading fraction by weight affect the physicomechanical and tribological characteristics of epoxy nanocomposites. Alumina nanoparticles with loading fractions of zero, 0.1, 0.2, 0.3, and 0.4 wt% are homogeneously dispersed in the epoxy matrix. Density, hardness, Young's modulus, compressive yield strength, toughness, elasticity, friction coefficient, and specific wear rate of the epoxy composites were estimated experimentally. A finite element model for the friction process is constructed to study the contact stress distribution during composite samples sliding. Results indicate an enhancement in the mechanical and tribological properties of the epoxy nanocomposite. Finally, scanning electron microscopy is used to inspect the worn surfaces of samples to elucidate the wear mechanism.