The Effect of Adding Alumina Phases (alpha and amorphous) to Improve the Mechanical Properties (Compressive Strength and Hardness) of Polyester Matrix Composites

Abstract

In this research work, a polyester composite material was prepared to contain a matrix which is a polyester resin and reinforced with (15, 25, 35, and 45) (wt %) of alumina particles phases (crystal structure & amorphous). All samples were prepared according to the standard measurements. Mechanical tests were done for the polyester composite materials to calculate the compressive strength and hardness, and the results showed a significant improvement in the properties of the polyester composite material reinforced with alumina with phase crystal (corundum-α), also noted the positive effect of the increase in the weight of the particles on the properties of the polyester composite material with that this increase has given better results.