Physics of the Solid State

, Volume 49, Issue 5, pp 936–940 | Cite as

Hysteresis phenomena during melting of an ultrathin lubricant film

  • A. V. Khomenko
  • I. A. Lyashenko
Lattice Dynamics and Phase Transitions


The influence of a deformational defect of the shear modulus on the melting of an ultrathin lubricant film was investigated in the framework of the Lorenz model used for describing a viscoelastic medium. It was established that the film can undergo both stepwise and continuous melting. Analysis of the lubricant behavior revealed that there are three modes corresponding to a zero shear stress, a Hookean portion in the loading diagram, and a plastic-flow portion. The hysteresis in the dependences of the stationary shear stress on the strain and the friction surface temperature is examined.

PACS numbers

64.60.-i 62.20.Fe 62.20.Qp 68.60.-p 


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Copyright information

© Pleiades Publishing, Ltd. 2007

Authors and Affiliations

  • A. V. Khomenko
    • 1
  • I. A. Lyashenko
    • 1
  1. 1.Sumy State UniversitySumyUkraine

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