Abstract
THE wearing process has been studied in detail on graphite basal plane surfaces rubbed by metallic micro-probes while being observed with a microscope having epi-illumination. When the graphite was smooth and flat, the probe under very light force could be passed repeatedly over the graphite without damage. Under increasing normal force, however, the surface showed a few sharp shadow lines extending away from the contact region, and these were interpreted as boundaries of stress or dislocation within the crystal.
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SAVAGE, R. Wear of Graphite Surface by Punching and Planing. Nature 183, 454 (1959). https://doi.org/10.1038/183454a0
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DOI: https://doi.org/10.1038/183454a0
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