SURFACE ENERGY EFFECTS IN SLIDING PHENOMENA.
Final rept., 1 Jul 63-30 Jun 66,
MASSACHUSETTS INST OF TECH CAMBRIDGE SURFACE LAB
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It has been proposed that surface energy manifests itself in a sliding system through a characteristic distance, equal to the size of wear particles for that system. This hypothesis was tested in systems in which other distance parameters were introduced, namely abrasive particles of varying sizes, solid films of varying thickness, and sliding surfaces of varying roughness. A minimum load was postulated below which low wear rates would prevail, and a numer of experiments were carried out to test this prediction. The effect of material compatibility on friction and wear were evaluated. The experimental results either agreed with the predictions of the surface energy model, or at any rate were not inconsistant with them. Author