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Issue 39, 2017
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Drop friction on liquid-infused materials

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We discuss in this paper the nature of the friction generated as a drop glides on a textured material infused by another liquid. Different regimes are found, depending on the viscosities of both liquids. While a viscous drop simply obeys a Stokes-type friction, the force opposing a drop moving on a viscous substrate becomes non-linear in velocity. A liquid on an infused material is surrounded by a meniscus, and this specific feature is proposed to be responsible for the special frictions observed on both adhesive and non-adhesive substrates.

Graphical abstract: Drop friction on liquid-infused materials

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The article was received on 21 Jun 2017, accepted on 04 Sep 2017 and first published on 08 Sep 2017

Article type: Paper
DOI: 10.1039/C7SM01226H
Soft Matter, 2017,13, 6981-6987

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    Drop friction on liquid-infused materials

    A. Keiser, L. Keiser, C. Clanet and D. Quéré, Soft Matter, 2017, 13, 6981
    DOI: 10.1039/C7SM01226H

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