A STUDY OF WEAR RATE BEHAVIOR OF POLYESTER REINFORCED BY SILICA (Sio 2 ) Particles

Assist, Kadhim Jawad, Oleiwi
2010 Dr. Jawad The Iraqi Journal For Mechanical And Material Engineering   unpublished
In this research the wear rate of one type of the thermosetting polymer (polyester) reinforced by ceramic particles (silica) has been investigated. A Pin -on-Disc wear testing machine of variable speed has been used. Flat against flat sliding surfaces under variable working parameters conditions have been tested. Statistical and mathematical analyses were used to the processing of the experimental data. A mathematical model was done which shows the wear rate of composite materials as a function
more » ... rials as a function of grain size and weight fraction. The results of flat sliding surfaces show that the wear rate of the specimens depends heavily on the working condition. It increases with the increase of the load and sliding speed. The results also show that the wear rate decreases with the increase of the weight fraction and the decrease of the grain size of the reinforcing particles. The optimum wear resistance of the reinforced polyester was at weight fraction of ( 20 % ) and grain size of ( 25 m). ( 25 m ) .
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