68th Annual Meeting of the APS Division of Fluid Dynamics (November 22, 2015 — November 24, 2015)

V0082: Marangoni flow during convective particle assembly

  • Kedar Joshi, Lehigh University
  • Caitlyn Tzou, Lehigh University
  • Michael Stever, Lehigh University
  • Pisist Kumnorkaew, Lehigh University
  • James Gilchrist, Lehigh University
DOI: https://doi.org/10.1103/APS.DFD.2015.GFM.V0082

Convective particle assembly is a fast, scalable way to coat nanoparticles onto a substrate.  It depends on evaporation of a fluid suspension that is drawn into a thin film.  One may think that using a fluid that has higher evaporation rate should make this process better.  Here, we show the flow complexities surrounding ethanol-water mixtures that result in an imbalance of surface energy that changes the way these suspensions flow.

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