The effect of the electric double layer on a very thin water lubricating film

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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Author(s)

Detail(s)

Original languageEnglish
Pages (from-to)197-203
Journal / PublicationTribology Letters
Volume14
Issue number3
Publication statusPublished - 2003

Abstract

This paper discusses the effect of the electric double layer on a very thin water lubricating film with and without consideration of the elastic deformation of the opposing surfaces. A modified Reynolds equation that considers the electric double layer is used in a numerical analysis. The effect of zeta potential on the film thickness and pressure is numerically calculated. For both hydrodynamic and elastohydrodynamic cases, the electric double layer significantly increases the lubricating film thickness. The pressure is also marginally increased, as illustrated in the hydrodynamic analysis. However, the effect on pressure is almost unnoticeable in the elastohydrodynamic analysis. Overall, the electric-double-layer effect is only significant for a water-film thickness of less than approximately 100 nanometers. © 2003 Plenum Publishing Corporation.

Research Area(s)

  • Elastohydrodynamic lubrication, Electric double layer, Thin water film lubrication

Citation Format(s)

The effect of the electric double layer on a very thin water lubricating film. / Wong, P. L.; Huang, P.; Meng, Y.
In: Tribology Letters, Vol. 14, No. 3, 2003, p. 197-203.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review