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Title | Temperature dependence effect of viscosity on ultrathin lubricant film melting |
Authors |
Khomenko, Oleksii Vitaliiovych
Liashenko, Yakiv Oleksandrovych |
ORCID |
http://orcid.org/0000-0001-8755-9592 http://orcid.org/0000-0001-7511-3163 |
Keywords |
boundary friction shear stress and strain viscoelastic medium |
Type | Article |
Date of Issue | 2006 |
URI | http://essuir.sumdu.edu.ua/handle/123456789/16191 |
Publisher | Condensed Matter Physics |
License | |
Citation | A.V. Khomenko, I.A. Lyashenko, Temperature dependence effect of viscosity on ultrathin lubricant film melting // Condensed Matter Physics. – 2006. - V.9, No. 4(48). - P. 695-702 |
Abstract |
We study the melting of ultrathin lubricant film under friction between
atomically
flat surfaces at temperature dependencies of viscosity described by
Vogel-Fulcher relationship and by power expression, which are observed
experimentally. It is shown that the critical temperature
exists in both cases
exceeding of which leads to the melting of lubricant and, as a result, the
sliding mode of friction sets in. The values of characteristic parameters of
lubricant are defined, which are needed for friction reducing. In the systems,
where the Vogel-Fulcher dependence is fulfilled, it is possible to choose
parameters at which the melting of lubricant takes place even at zero
temperature of friction surfaces. The deformational defect of the
shear modulus is taken into account for description of lubricant melting
according to mechanism of the first-order transition.
When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/16191 |
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