Kinetics of Capillary Condensation in Nanoscopic Sliding Friction

Elisa Riedo, Francis Lévy, Harald Brune

Research output: Contribution to journalArticle

Abstract

The velocity and humidity dependence of nanoscopic sliding friction has been studied on CrN and diamondlike carbon surfaces with an atomic force microscope. The surface wettability is found to be decisive. Partially hydrophilic surfaces show a logarithmic decrease of friction with increasing velocity, the slope of which varies drastically with humidity, whereas on partially hydrophobic surfaces we confirm the formerly reported logarithmic increase. A model for the thermally activated nucleation of water bridges between tip and sample asperities fully reproduces the experimental data.

Original languageEnglish (US)
Number of pages1
JournalPhysical Review Letters
Volume88
Issue number18
DOIs
StatePublished - Jan 1 2002

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sliding friction
condensation
kinetics
humidity
wettability
friction
microscopes
nucleation
slopes
carbon
water

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Kinetics of Capillary Condensation in Nanoscopic Sliding Friction. / Riedo, Elisa; Lévy, Francis; Brune, Harald.

In: Physical Review Letters, Vol. 88, No. 18, 01.01.2002.

Research output: Contribution to journalArticle

Riedo, Elisa ; Lévy, Francis ; Brune, Harald. / Kinetics of Capillary Condensation in Nanoscopic Sliding Friction. In: Physical Review Letters. 2002 ; Vol. 88, No. 18.
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