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Nanorhéologie : écoulement limite et friction à l'interface liquide-solide.

Abstract : This work adresses the interplay between surface properties and the interfacial flow
of simple liquids in the vicinity of solid surfaces. We have performed nanorheology
experiments on various systems using a dynamic Surface Force Apparatus.
Firstly, we have shown that the intrinsic boundary condition on smooth surfaces
depends on the wetting properties of the solid surfaces, but not on the liquid viscosity.
We have also studied the boundary flow and interfacial friction of water on supported
phospholipid layers, which are surfaces of biological interest.
Secondly, we have investigated the drainage flow of water-glycerol mixtures on superhydrophobic
surfaces. We have been able to detect and measure the elastic properties
of such surfaces due to the entrapped bubbles. Finally, we have shown that, contrary to
conventional notions, the presence of gas pockets on a liquid-solid interface can significantly
increase the interfacial friction.
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Submitted on : Thursday, March 1, 2007 - 12:00:18 PM
Last modification on : Thursday, October 15, 2020 - 9:00:03 AM
Long-term archiving on: : Friday, September 21, 2012 - 12:15:09 PM

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  • HAL Id : tel-00134261, version 1

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Audrey Steinberger. Nanorhéologie : écoulement limite et friction à l'interface liquide-solide.. Analyse de données, Statistiques et Probabilités [physics.data-an]. Université Claude Bernard - Lyon I, 2006. Français. ⟨tel-00134261⟩

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