Abstract
The short carbon fiber reinforced polyimide (PI) composites filled with particulates of graphite were prepared by a heat molding technique. The friction and wear behaviors of PI composites sliding against GCr15 steel rings were evaluated on an M-2000 model ring-on-block test rig. It was found that the filler of graphite can significantly improve the wear resistance and decrease the friction coefficient of the PI composites. It was also found that the tribological properties of the short carbon fiber reinforced PI composites filled with graphite are closely related with the sliding condition such as sliding rate and the applied load.
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