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A surface-surface dry sliding wear of silicon-carbide and carbon-graphite discs is performed on a rotational tribological tester. Coefficient of friction (COF) is monitored as a function of time. Samples are measured by a white light interferometer. Four uniform groups, each with two repetitions, are set to different test durations to investigate the evolution of bi-Gaussian surface parameters in...
A probe model of wear degree under a sliding wear is established by using the Rk parameter set referring to ISO 13565-2. Four wear degrees are defined as peak-region, core-region, valley-region and deep scratch periods. The Rk parameter set serves as wear-degree-evaluation indexes. A surface-surface dry sliding experiment of silicon-carbide and carbon-graphite (widely used in mechanical face seals)...
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