Effect of pressure on multi-wall carbon nanotubes/nano aluminum metal matrix composites produced by squeeze casting process

Multi-walled carbon nanotubes (MWCNTs) should be attractive for the reinforcement of metal-matrix composites, because of their high strength, high modulus and high thermal conductivity. In this study, the effect of squeeze pressure on mechanical properties and microstructure of cast metal matrix composite A356- MWCNT was studied. Special amount of Al-MWCNT fibers produced by accumulative rollbondingprocess and A356 and Ai-13% Aluminum ingots were melted in a crucible furnace. This mixture was solidified under different pressures by squeeze casting process. The results shows increase in tensile, shear and bending strength and hardness and decrease in DAS by adding the carbon nanotubes and squeeze pressure..