Abstract
It is necessary to modify the running-in process for the application of ceramics using water as a lubricant in real conditions because ceramics sliding in water are characterized by a running-in period with severe friction and wear. Fullerenol, a kind of highly water-soluble nanoparticle, was synthesized and then used to ameliorate the tribological properties of Si3N4 sliding against Al2O3 in pure water. With the addition of fullerenol, the running-in period was shortened from 30 min to 100 s at a speed of 250 mm/s. The speed threshold above which ultralow friction can be obtained in a short time was expanded from 450 mm/s to 80 mm/s. Meanwhile, the load-carrying ability of water film was increased. The role of fullerenol was discussed based on observation of the wear scar by an optical interferometer and XPS characterization of the tribo-film on the wear track.
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Liu, Y., Wang, X., Liu, P. et al. Modification on the tribological properties of ceramics lubricated by water using fullerenol as a lubricating additive. Sci. China Technol. Sci. 55, 2656–2661 (2012). https://doi.org/10.1007/s11431-012-4938-y
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DOI: https://doi.org/10.1007/s11431-012-4938-y