The Origin of Static Friction in Ultrathin Liquid Films

John Van Alsten, Steve Granick

Research output: Contribution to journalArticle

Abstract

We study the solid-like shear response (the static friction) of liquid films of both compact and chain geometry, whose thickness approaches molecular dimensions. The nonpolar liquids were confined between parallel plates (step-free single crystals) of muscovite mica. The finite shear stress required to produce sliding increased with measurement time over intervals from minutes to hours, at temperatures above the bulk melting temperature or the bulk glass transition temperature. This loss of fluidity may reflect a vitrified state imposed by the liquid's confinement.

Original languageEnglish (US)
Pages (from-to)876-880
Number of pages5
JournalLangmuir
Volume6
Issue number4
DOIs
StatePublished - Jan 1 1990

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ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Spectroscopy
  • Electrochemistry

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