Uniaxial powder compaction is the most typical form of consolidation process in powder metallurgy composites where the loose powders are compressed in a die cavity by the application of pressure to prepare a solid 'green' part of relatively high density that conforms to the shape of the cavity. The density level of the part to be produced is purely controlled by the parameter such as the amount of pressure applied; ram velocity, friction between the powder and the die surfaces. An attempt has been made to investigate experimentally the powder compaction of Al-SiC metal matrix composites. The level of density and stress enhancements are investigated for various percentage combination of second phase particles without changing the other conditions like friction, ram speed and pressure.

Keywords: Compaction, Aluminium, Silicon carbide, Compressibility, Relative density