Ohnishi, Satomi; Stewart, Andrew
The dependence of frictional forces between mica surfaces on humidity, particularly in the low relative humidity range, has been studied with the surface force apparatus. The dynamic shear stress decreased with increasing humidity. When the humidity was lower than 40%, a large static frictional peak was observed before initial sliding. This peak did not reappear after stopping temporarily and resuming the motion but appeared again after the surfaces had been separated, if only for a few...[Show more]
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