Stability limits of capillary bridges: How contact angle hysteresis affects morphology transitions of liquid microstructures

Riëlle de Ruiter, Ciro Semprebon, Mathijs van Gorcum, Michael H.G. Duits, Martin Brinkmann, Frieder Mugele

Research output: Contribution to journalArticleAcademicpeer-review

11 Citations (Scopus)
54 Downloads (Pure)

Abstract

The equilibrium shape of a drop in contact with solid surfaces can undergo continuous or discontinuous transitions upon changes in either drop volume or surface energies. In many instances, such transitions involve the motion of the three-phase contact line and are thus sensitive to contact angle hysteresis. Using a combination of electrowetting-based experiments and numerical calculations, we demonstrate for a generic sphere-plate confinement geometry how contact angle hysteresis affects the mechanical stability of competing axisymmetric and nonaxisymmetric drop conformations and qualitatively changes the character of transitions between them.
Original languageEnglish
Article number234501
Number of pages5
JournalPhysical review letters
Volume114
Issue number23
DOIs
Publication statusPublished - 10 Jun 2015

Keywords

  • METIS-312106
  • IR-97581

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