The effect of lateral vibrations on transport and friction in nanoscale contacts

Z. Tshiprut, A. E. Filippov, M. Urbakh*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

We demonstrate that lateral vibrations of a substrate can dramatically increase surface diffusivity and mobility and reduce friction at the nanoscale. In contrast to the enhancement of diffusion and mobility that has a resonance nature, the reduction of friction does not exhibit pronounce resonance features. We find an abrupt dilatancy transition from the state with a small tip-surface separation to the state with a large separation as the vibration frequency increases. Dilatancy is shown to play an essential role in dynamics of a nanometer-size tip which interacts with a vibrating surface. Atomic force microscopy (AFM) experiments are suggested which can test the predicted effects.

Original languageEnglish
Pages (from-to)967-972
Number of pages6
JournalTribology International
Volume40
Issue number6
DOIs
StatePublished - Jun 2007

Funding

FundersFunder number
College of Environmental Science and Forestry, State University of New York
Deutsche ForschungsgemeinschaftHA 1517/26-1
Israel Science Foundation1116/05

    Keywords

    • Control of friction
    • Diffusion
    • Friction
    • Stick-slip motion

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