Table of Contents
ISRN Tribology
Volume 2014 (2014), Article ID 612195, 9 pages
http://dx.doi.org/10.1155/2014/612195
Research Article

Effect of Surface Forces on Ultrathin Film Lubrication

School of Mechanical Engineering, KIIT University, Bhubaneswar, India

Received 4 January 2014; Accepted 24 February 2014; Published 27 May 2014

Academic Editors: B. A. Akash and D. Das

Copyright © 2014 Prakash Chandra Mishra. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Lubricated contact with nanoscale oil film is modeled for friction. Effect of the van der Waals pressure and the solvation pressure forces on such ultrathin lubricating oil film is considered while finding the friction and other parameters. Hydrodynamic action is represented using transient thermoelastohydrodynamics. Net pressure due to hydrodynamic, solvation, and van der Waals’ action is integrated over the contact area to find contact load. Conjunctional friction due to thermal activation of such ultrathin film is derived using the Eyring model. Effect of molecular dimension on friction is studied.