Electrical conductivity of quasi-two-dimensional foams

Pavel Yazhgur, Clément Honorez, Wiebke Drenckhan, Dominique Langevin, and Anniina Salonen
Phys. Rev. E 91, 042301 – Published 2 April 2015

Abstract

Quasi-two-dimensional (quasi-2D) foams consist of monolayers of bubbles squeezed between two narrowly spaced plates. These simplified foams have served successfully in the past to shed light on numerous issues in foam physics. Here we consider the electrical conductivity of such model foams. We compare experiments to a model which we propose, and which successfully relates the structural and the conductive properties of the foam over the full range of the investigated liquid content. We show in particular that in the case of quasi-2D foams the liquid in the nodes needs to be taken into account even at low liquid content. We think that these results may provide different approaches for the characterization of foam properties and for the in situ characterization of the liquid content of foams in confining geometries, such as microfluidics.

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  • Received 1 October 2014
  • Revised 21 January 2015

DOI:https://doi.org/10.1103/PhysRevE.91.042301

©2015 American Physical Society

Authors & Affiliations

Pavel Yazhgur*, Clément Honorez, Wiebke Drenckhan, Dominique Langevin, and Anniina Salonen*

  • Laboratoire de Physique des Solides, CNRS and Université Paris-Sud, 91405 Orsay Cedex, France

  • *Corresponding authors: pavel.yazhgur@u-psud.fr and anniina.salonen@u-psud.fr

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Issue

Vol. 91, Iss. 4 — April 2015

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