Two-Body Abrasive Wear of Alumina and Alumina-Graphene Composite Ceramic Material: Effect of Speed and Sliding Distance

The present work studied the wear behavior of microwave-sintered alumina-graphene composite samples. The wear tests of ceramic composite samples were conducted on pin-on-disk apparatus at speed of 0.5 m/s, 1 m/s, and 1.5 m/s and with sliding distance of 50, 100, and 150 m. The wear rate of ceramic composites influenced by speed and sliding distance was analyzed and compared with wear behavior of monolithic alumina by conducting tests at a constant load of 10 N. Investigated results show that alumina composite reinforced with 0.35 wt% of graphene yielded superior wear resistance compared to other alumina-graphene composites and also to monolithic alumina prepared under same conditions. This study revealed the superior wear properties of alumina ceramic composite at 0.35 wt% of graphene reinforcement.