Abstract
Sliding behaviors of a unidirectionally oriented Si 3N 4-whisker-reinforced Si 3N 4 composite has been studied in different directions with respect to the orientation of the Si 3N 4 whisker grains by using a ball-on-disk reciprocating sliding apparatus. The results show that the friction and wear behaviors are much different in different sliding directions and under different applied loads, wear presents periodic in a sliding process, and wear mechanism is generally microfracture.
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