Unsteady wetting on a rough surface due to electrically altered surface tension

Yeong Yan Perng, Seth Lichter*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

Measurements of unsteady wetting on a rough surface were made. Spreading was initiated by electrically altering the solid-liquid surface tension. The resultant time-dependent interface shape could be described by steady theory augmented with an ad hoc model which accounts for surface roughness. Flattening of the interface induced by pinning appears in the equations as 'slip' which lowers the effective capillary number.

Original languageEnglish (US)
Pages (from-to)119-127
Number of pages9
JournalJournal of Colloid And Interface Science
Volume217
Issue number1
DOIs
StatePublished - Sep 1 1999

Keywords

  • Contact line
  • Surface tension
  • Wetting

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Surfaces, Coatings and Films
  • Colloid and Surface Chemistry

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