Molecular rolling friction: the cogwheel model
arXiv:0809.1015 · doi:10.1088/0953-8984/20/35/354007
Abstract
With the help of a two-dimensional model we study rolling lubrication by circular (2D fullerenes) molecules for a wide range of parameters. The conditions under which microscopic rolling friction may be effective are identified and related to the relative ingraining between substrate and molecule, the latter behaving as a nanosized cogwheel.
12 figures