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

de Ruiter, Rielle; Semprebon, Ciro; van Gorcum, Mathijs; Duits, Michèl H. G.; Brinkmann, Martin; Mugele, Frieder

doi:10.1103/PhysRevLett.114.234501

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

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Semprebon, Ciro
Group Theory of wet random assemblies, Department of Dynamics of Complex Fluids, Max Planck Institute for Dynamics and Self-Organization, Max Planck Society;

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Brinkmann, Martin
Group Theory of wet random assemblies, Department of Dynamics of Complex Fluids, Max Planck Institute for Dynamics and Self-Organization, Max Planck Society;

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引用

de Ruiter, R., Semprebon, C., van Gorcum, M., Duits, M. H. G., Brinkmann, M., & Mugele, F. (2015). Stability limits of capillary bridges: How contact angle hysteresis affects morphology transitions of liquid microstructures. Physical Review Letters, 114(23):. doi:10.1103/PhysRevLett.114.234501.

引用: https://hdl.handle.net/11858/00-001M-0000-0029-5F08-5

要旨

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.