Exploitation of Quartzite as Reinforcement in Aluminum Based Metal Matrix Composite (AMMCs)

Abstract

The production of lightweight materials that are strong and durable, and ensuring human health safety has been a global challenge that researchers seek to surmount. The use of quartzite ore as reinforcement in aluminium based metal matrix composites (AMMCs) was investigated in this research. The aim of this work was to improve the properties of Al-Si alloy by the use of quartzite as reinforcement. Ingots of alloy and the composite cast were machined to the dimensions of 60 mm by 100 mm, and finally to 5 mm by 10 mm. Identification, optical, and ultimate tensile test were carried out. The microstructural analysis of the alloy and composite produced were carried out using Scanning Electron Microscope (SEM). The result of the identification and optical test confirmed the presence of Quartzite as the principal metallic mineral present in the ore, trailed by the presence of feldspar and kaolite. Al-Si alloy had a density of 2.6g/cm2 and a specific strength of 22.92, while the Al- Si/quartzite composite had a density of 2.7 g/cm2 and a specific strength of 24.50.The microstructural analysis revealed that the Al-Si/quartzite composite has better physical and mechanical properties over the Al-Si alloy.