Search academic texts

Information × Registration Number 2103U000311, Article popup.category Стаття Title popup.author popup.publication 01-01-2003 popup.source_user Сумський державний університет popup.source http://essuir.sumdu.edu.ua/handle/123456789/16192 popup.publisher Phys. Rev. E Description 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 popup.nrat_date 2025-05-12 Close