Fabrication and Characterisation of Al-Al2O3 Composite by Mechanical Alloying

Abstract

Over the years, Aluminium Matrix Composites (AMCs) have gained importance in numerous structural, non-structural and functional applications in different engineering sectors. Driving force for the utilisation of AMCs in these sectors include performance, economics and environmental benefits. The key benefit of AMCs in transportation sector is lower fuel consumption. Particulate reinforced Aluminium Matrix Composites have been successfully used in automotive and aerospace industry due to their light weight, high strength to weight ratio and good wear resistance.This work is focussed on the study of the influence of different composition of reinforcement (Al2O3) on physical and mechanical behaviour of Aluminium Matrix Composites. These AMCs will be fabricated by mechanical alloying. In this study instead of aluminium powder aluminium chips will be used along with Al2O3powder with that it is expected that embedment of particles will be better and porosity will be minimised. Once compact are ready these will be sintered and will be evaluated for its various physical, microstructural and mechanical properties.