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Title | Phase dynamics and kinetics of thin lubricant film driven by correlated temperature fluctuations |
Authors |
Khomenko, Oleksii Vitaliiovych
Liashenko, Yakiv Oleksandrovych |
ORCID |
http://orcid.org/0000-0001-8755-9592 http://orcid.org/0000-0001-7511-3163 |
Keywords |
stick-slip friction ultrathin lubricant film Phase diagrams |
Type | Article |
Date of Issue | 2007 |
URI | http://essuir.sumdu.edu.ua/handle/123456789/16208 |
Publisher | World scientific publishing company |
License | |
Citation | A.V. Khomenko, I.A. Lyashenko, Phase dynamics and kinetics of thin lubricant film driven by correlated temperature fluctuations // Fluctuation and Noise Letters. - 2007. - V.7, No.2. - P. L111-L133 |
Abstract |
The melting of an ultrathin lubricant film is studied at friction between
atomically flat surfaces. We take into account fluctuations of
lubricant temperature, which are defined by the Ornstein-Uhlenbeck
process. Phase diagrams and
portraits are calculated for second- and first-order
transitions (the melting of an amorphous and that of a
crystalline lubricants, respectively). It is shown that, in the former case,
a stick-slip friction domain, separating
the regions of dry and sliding friction,
appears. In the latter case, three domains
of stick-slip friction arise, which are characterized by the
transitions between dry, metastable and stable sliding friction.
The increase in the correlation time of lubricant temperature
fluctuations leads to increasing in the rubbing-surface
temperature needed for realization of sliding friction. The stationary states,
corresponding to dry, stable and metastable sliding friction, are reached as a
result of damped oscillations.
When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/16208 |
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