Study some of Mechanical properties of composite (Cu-Al₂O₃-Ni) prepared by powder metallurgy technology

Abstract

The present paper aims to study the properties of (Bulk density, True density, Hardness and Wear) of matrix composite material (based Copper) with (α-Alumina) Powder with different percentages (6, 4.5, and 1.3 %), and use the nickel at a constant percentage (0.7%). Manufactured by powder metallurgy to mix and compress the mixture by compressing (8 Tons) for three minutes, and then sintering temperature on the composite is (900°C) for one hour. So, the results referred to that there is a decrease in Density and Wear while there is an increase in Hardness.