K Feitosa et al 2005 J. Phys.: Condens. Matter 17 6301 doi:10.1088/0953-8984/17/41/001
K Feitosa1, S Marze2, A Saint-Jalmes2 and D J Durian1
Show affiliationsWe present new data for the electrical conductivity of foams in which the liquid fraction ranges from two to seventy per cent. We compare with a comprehensive collection of prior data, and we model all results with simple empirical formulae. We achieve a unified description that applies equally to dry foams and emulsions, where the droplets are highly compressed, as well as to dilute suspensions of spherical particles, where the particle separation is large. In the former limit, Lemlich's result is recovered; in the latter limit, Maxwell's result is recovered.
Soft matter, liquids and polymers
Issue 41 (19 October 2005)
Received 18 July 2005
Published 30 September 2005
K Feitosa et al 2005 J. Phys.: Condens. Matter 17 6301
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