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Effective medium theory of electrical conduction in two-component anisotropic composites

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  • Schwartz, Lawrence M.

Abstract

The electrical properties of isotropic composite systems are often described in terms of either the self-consistent approximation (SCA) or the differential effective medium (DEM) approximation. Both approaches begin with the components in the form of randomly oriented spheroidal particles. These approximation schemes will be extended to cover anisotropic materials where the components are pictured as aligned spheroids. Porous media are a special class of composite materials in which both components form interconnected (percolating) channels through the system. We show that the combined SCA-DEM approach, developed for isotropic systems by Sheng, allows us to describe bi-connected anisotropic porous media over the full concentration range.

Suggested Citation

  • Schwartz, Lawrence M., 1994. "Effective medium theory of electrical conduction in two-component anisotropic composites," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 207(1), pages 131-136.
    • Handle: RePEc:eee:phsmap:v:207:y:1994:i:1:p:131-136
    DOI: 10.1016/0378-4371(94)90363-8
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    References listed on IDEAS

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    1. Toledo, Pedro G. & Ted Davis, H. & Scriven, L.E., 1992. "Fluids in fractal porous media: scaling of transport properties," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 185(1), pages 228-234.
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    Cited by:

    1. Koelman, J.M.V.A. & de Kuijper, A., 1997. "An effective medium model for the electric conductivity of an N-component anisotropic and percolating mixture," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 247(1), pages 10-22.

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