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Please use this identifier to cite or link to this item:http://essuir.sumdu.edu.ua/handle/123456789/16192
Title: Solid-liquid transition of ultrathin lubricant film
Authors: Хоменко, Олексій Віталійович
Хоменко, Алексей Витальевич
Khomenko, Oleksii Vitaliiovych
Ющенко, Ольга Володимирівна
Ющенко, Ольга Владимировна
Yushchenko, Olha Volodymyrivna
Issue Year: 2003
Publisher: Phys. Rev. E
Citation: A.V. Khomenko, O.V. Yushchenko, Solid-liquid transition of ultrathin lubricant film// Phys. Rev. E. - 2003. - V. 68. - P. 036110-6
Abstract: We represent a melting of ultrathin lubricant film by friction between atomically flat surfaces as a result of action of spontaneously appearing elastic field of stress shear component caused by the external supercritical heating. The kinetics of this solid-liquid transition is described by the Maxwell-type and Voigt-Kelvin equations for viscoelastic matter as well as by the relaxation equation for temperature. We show that these equations coincide formally with the synergetic Lorentz system, where the stress acts as the order parameter, the conjugate field is reduced to the elastic shear strain, and the temperature is the control parameter. Using the adiabatic approximation we find the steady-state values of these quantities. Taking into account the deformational defect of the shear modulus, we show that lubricant melting is realized according to mechanism of the first-order transition. The critical temperature of the friction surfaces increases with growth of the characteristic value of shear viscosity and decreases with growth of the shear modulus value linearly. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/16192
URI: http://essuir.sumdu.edu.ua/handle/123456789/16192
Type: Article
Appears in Collections:Наукові видання (ЕлІТ)

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