Abstract

Al2O3.SiC particle was prepared was prepared by the self-propagting high temperature sYthesis(SHS) process from a mixture of SiO2, Al and C powders, The fabricated Al2O3.SiC particle was applied to 2024Al/(Al2O3.SiC)pcomposite as a reinforcement. Aluminum matix composites were fabricares by the powder extrusion method using the synthesized Al2O3.SiC particle and commercial 2024Al powder. Theoptimum preparation conditions for Al2O3.SiC partticle by SHS process were described. The influence of the Al2O3.SiC voiume fraction on the mechanical was composite was also discussed. Despite adiabatic temperature was about 2367K, SHs reaction was completed not by itself, but by using pre-heating. Mean particle size of final particle synthesized was 0.73 µm and most of the particle was smaller than 2µm. Elastic modulus and tensile strength of the composite increased with increase the volume fraction of reinforcement but, tensile strength depreciated at 30 vol% of reinforcement.