Non-Equilibrium Stationary Modes of Boundary Friction
| Authors | I.A. Lyashenko1, L.S. Metlov2, A.V. Khomenko1 , S.N. Chepulskyi1 |
| Affiliations | 1 Sumy State University, 2, Rimsky-Korsakov Str., 40007, Sumy, Ukraine 2 Donetsk Institute for Physics and Engineering named after A.A. Galkin of the NASU, 72, R.-Luxemburg Str., 83114, Donetsk, Ukraine |
| Е-mail | nabla04@ukr.net, khom@mss.sumdu.edu.ua, apichsn@gmail.com |
| Issue | Volume 3, Year 2011, Number 3 |
| Dates | Received 13 March 2011, in final form 27 May 2011, published online 05 November 2011 |
| Citation | I.A. Lyashenko, L.S. Metlov, A.V. Khomenko, S.N. Chepulskyi, J. Nano- Electron. Phys. 3 No3, 58 (2011) |
| DOI | |
| PACS Number(s) | 05.70.Ln; 47.15.gm; 62.20.Qp; 64.60.-i; 68.35.Af; 68.60.-p |
| Keywords | Boundary friction, Nonequilibrium processes, Internal energy, Stick-slip mode, Invariants of strain tensor, Shear melting. |
| Annotation |
A non-equilibrium thermodynamic model describing the behavior of an ultrathin lubricating material film confined between two atomically-smooth solid surfaces is proposed. As the order parameter the excess volume is chosen whose value increases with melting and subsequent fluidization of lubricant. It is shown that the external pressure, applied perpendicularly to the friction surfaces, influences crucially on lubricant behavior. The total system of kinetic equations is written down in which the relative shear velocity of rubbing surfaces, their temperature, and external normal pressure are the control parameters. Phase diagram with domains of different friction regimes is built. |
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List of References |
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