[01] Ibrahem R. A., Mechanical Engineering Department, Faculty of Engineering, Beni-Suef University, Beni-Suef, Egypt.

In the present work, frictional and wear behaviour of polymer (polyester) matrix composites reinforced with different types of fibre / fillers have been investigated under dry wear sliding conditions. There are two types of fibre; carbon and coir fibre used as continuous reinforcements phase and two types of powders; graphite and coconut shell powder used as particulate reinforcements. Friction coefficient and wear rate measured for the proposed materials under dry sliding contact with steel counter-face. Pin on disc tribometer used to performing the proposed tribological measurements under 2.3 ms ^-1 sliding speed and 4, 6, and 8N applied normal loads. Effect of applied loads, reinforcement type and reinforcement content observed. The results shows that the friction coefficient of carbon or coir powder filled polyester less than friction coefficient of carbon or coir fibre reinforced polyester. Nevertheless, wear resistance of carbon or coir fibre reinforced polyester is higher than wear resistance of carbon or coir powder reinforced polyester.

Polyester Composites, Carbon Fibre, Graphite Powder, Coir Fibre, Coconut Shell Powder, Tribological Performance

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