This title appears in the Scientific Report : 2008 

Rubber friction on (apparently) smooth lubricated surfaces
Mofidi, M.
Prakash, B. / Persson, B. N. J. / Albohr, O.
Quanten-Theorie der Materialien; IFF-1
Journal of physics / Condensed matter, 20 (2008) S. 085223
Bristol IOP Publ. 2008
Journal Article
Kondensierte Materie
Journal of Physics: Condensed Matter 20
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We study rubber sliding friction on hard lubricated surfaces. We show that even if the hard surface appears smooth to the naked eye, it may exhibit short-wavelength roughness, which may make the dominant contribution to rubber friction. That is, the observed sliding friction is mainly due to the viscoelastic deformations of the rubber by the counterface surface asperities. The results presented are of great importance for rubber sealing and other rubber applications involving ( apparently) smooth surfaces.