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Journal of Physical Studies 17(1), Article 1002 [7 pages] (2013)
DOI: https://doi.org/10.30970/jps.17.1002 MELTING OF THE ULTRATHIN LUBRICANT FILM BETWEEN ATOMICALLY-FLAT SOLID SURFACES AS SECOND-ORDER PHASE TRANSITIONI. A. Lyashenko{1,2}, A. M. Zaskoka2
1Peter Grünberg Institut-1, FZ-Jülich, 52425 Jülich,
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The thermodynamic model of ultrathin lubricant film melting, which is contained between two atomically-flat solid surfaces at their reciprocal motion is considered. The transitions between lubricant structural conditions are described as second-order phase transitions. The melting occurs both at the temperature increasing and when elastic strain exceeds the critical value. The kinetics of the system has been investigated within the framework of the mechanical analogue of a simple tribological system. It is established that the periodical second-order phase transitions can lead to the stick-slip motion mode in the system. The influence of the external parameters changes on the mode of friction has been studied.
PACS number(s): 05.70.Ce, 47.15.gm, 47.50.-d, 62.20.Qp, 83.60.Fg