Drop impact of suspensions

ORAL

Abstract

Drop impact studies have a wide range of applications, many of which involve complex fluids. We study here the liquid drop impact of a silver nano-particles dispersion on a solid glass surface. This dispersion is used for inkjet printing of functional electronic materials. When the impact velocity increases, the drop classically splashes into smaller droplets. However, it surprisingly stops splashing above a critical impact velocity. We combine high-speed imaging experiments with different characterizations of the dispersion to understand this transition to non-splashing.

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Authors

  • M.-J. Thoraval

    Physics of Fluids, University of Twente

  • F. Boyer

    Physics of Fluids, University of Twente

  • E. Sandoval Nava

    Physics of Fluids, University of Twente

  • J.F. Dijksman

    Physics of Fluids, University of Twente

  • Detlef Lohse

    University of Twente, Physics of Fluids Group, Faculty of Science and Technology, University of Twente, 7500 AE Enschede, The Netherlands, PoF Univ. of Twente, Physics of Fluids, Mesa+ Institute, University of Twente, P.O. Box 217, 7500 AE Enschede, Physics of Fluids, Faculty of Science \& Technology, University of Twente, The Netherlands, Physics of Fluids, University of Twente, Univ of Twente

  • J.H. Snoeijer

    University of Twente, Physics of Fluids, University of Twente