Abstract
Molecular dynamics simulations have been used to examine the friction between two surfaces placed in sliding contact. These simulations show that the presence of methane-debris molecules squeezed between two hydrogen-terminated diamond (111) surfaces significantly reduces the friction compared to the same two surfaces in the absence of debris. These findings are in agreement with macroscopic experiments that have examined the friction of diamond on diamond in the presence of debris. In addition, the friction coefficients are significantly lower compared to the same system with methyl groups chemisorbed to one of the diamond surfaces.
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Perry, M.D., Harrison, J.A. The effects of methane-debris molecules on the frictional properties of diamond. Tribol Lett 1, 109–119 (1995). https://doi.org/10.1007/BF00209766
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DOI: https://doi.org/10.1007/BF00209766