Abstract
Aluminium (A356.0)/Zirconia (ZrO2) Nanocomposites fabricated via the stir casting process were used to study the mechanical properties and morphology in the present work. ZrO2 Nanoparticles were added in terms of 2.5 and 5% by weight. Hardness, tensile and compressive test results indicate towards an improvement in the strength and decrease in elongation with the addition of ZrO2 Nanoparticles. Hardness increased from 71.33 HBN to 87.63 HBN at A356.0/0% ZrO2 to A356.0 / 5% ZrO2 Nanocomposites. The improvement of 24.52% and 28.9% in yield strength (YS) and 24.52 and 28.9% for 2.5 and 5% samples in ultimate tensile strength (UTS) was observed. Similar observations were made with compression samples also. SEM studies on the fractured surfaces of the samples were performed in order to understand the nature of the fracture mechanism.
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