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Impact of electric fields on the speed of contact line in vertical deposition of diluted colloids
Authors: Giuliani, M. (Maximiliano)
Pichumani, M. (Moorthi)
González-Viñas, W. (Wenceslao)
Keywords: Materias Investigacion::Física
Issue Date: 2011
Publisher: Springer
Publisher version:
ISSN: 1951-6401
Citation: The European Physical Journal
We report experimental results on the influence of electric fields on the contact line dynamics of the vertical deposition of water-based diluted colloidal suspensions. We measure the speed of macroscopically receding contact line for different initial concentrations and applied voltages. We explain the observed behavior via the electrophoretic effect in the region near the contact line. The electrophoretic effect induces a concentration gradient along the direction of the applied field which influences the morphology of the dried deposit of colloidal particles. Thus the applied field has an effect on the receding contact line through morphological formation and its transition.
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