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Dynamics of anchored oscillating nanomenisci

Mortagne, Caroline and Lippera, Kevin and Tordjeman, Philippe and Benzaquen, Michael and Ondarçuhu, Thierry Dynamics of anchored oscillating nanomenisci. (2017) Physical Review Fluids, 2 (10). 1-9. ISSN 2469-990X

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Official URL: http://dx.doi.org/10.1103/PhysRevFluids.2.102201

Abstract

We present a self-contained study of the dynamics of oscillating nanomenisci anchored on nanometric topographical defects around a cylindrical nanofiber with a radius below 100 nm. Using frequency-modulation atomic force microscopy (FM-AFM), we show that the friction coefficient surges as the contact angle is decreased. We propose a theoretical model within the lubrification approximation that reproduces the experimental data and provides a comprehensive description of the dynamics of the nanomeniscus. The dissipation pattern in the vicinity of the contact line and the anchoring properties are discussed as a function of liquid and surface properties in addition to the forcing conditions.

Item Type:Article
Additional Information:Thanks to American Physical Society editor. The original PDF of the article can be found at Phyical Review Fluids website : https://journals.aps.org/prfluids/abstract/10.1103/PhysRevFluids.2.102201
HAL Id:hal-01754876
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
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Deposited On:30 Mar 2018 09:31

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