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A theory for the limiting conductivity of polyhedral foam at low density

Authors
Journal
Journal of Colloid and Interface Science
0021-9797
Publisher
Elsevier
Publication Date
Volume
64
Issue
1
Identifiers
DOI: 10.1016/0021-9797(78)90339-9

Abstract

Abstract A theory is developed for the electrical conductivity of a polyhedral foam of sufficiently low bulk density as to conduct effectively only through a random lattice of very narrow Plateau borders. This theory yields a value of 3.0 for the ratio of the bulk (volumetric) density to the bulk electrical conductivity ratio. This result is compared with extrapolations of published experiments.

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