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Title Hysteresis phenomena at ultrathin lubricant film melting in the case of first-order phase transition
Authors Khomenko, Oleksii Vitaliiovych  
Liashenko, Yakiv Oleksandrovych  
Keywords Boundary friction
Viscoelastic medium
Shear stress and strain
Stick-slip friction
Type Article
Date of Issue 2007
URI http://essuir.sumdu.edu.ua/handle/123456789/16207
Publisher Physics Letters A
License
Citation A.V. Khomenko, I.A. Lyashenko, Hysteresis phenomena at ultrathin lubricant film melting in the case of first-order phase transition // Physics Letters A. – 2007. - V.366, Iss. 1-2. - P.165-173
Abstract Within the framework of Lorentz model for description of viscoelastic medium the influence of deformational defect of the shear modulus is studied on melting of ultrathin lubricant film confined between the atomically flat solid surfaces. The possibility of jump-like and continuous melting is shown. Three modes of lubricant behavior are found, which correspond to the zero shear stress, the Hooke section of loading diagram, and the domain of plastic flow. Transition between these modes can take place according to mechanisms of first-order and second-order phase transformations. Hysteresis of dependencies of stationary stresses on strain and friction surfaces temperature is described. Phase kinetics of the system is investigated. It is shown that ratio of the relaxation times for the studied quantities influences qualitatively on the character of the stationary mode setting. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/16207
Appears in Collections: Наукові видання (ЕлІТ)

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