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Effective electrical conductivity of two-phase disordered composite media
Abstract
Perturbation expansions of the effective electrical conductivity σe of any two-phase isotropic composite medium of arbitrary dimensionality d (where d=2,3) are derived. It is shown that certain Padé approximants of a particular series representation of σe yield known rigorous bounds on the conductivity of the composite. The relationships between the conductivities of certain models that are exactly realized by some of these bounds and the perturbation expansions are discussed. A new expression for the conductivity of a broad class of three-dimensional dispersions of inclusions is derived. The formula for σe, which depends upon, among other quantities, a certain three-point probability function of the composite medium, is shown to accurately predict σe of both periodic and random arrays of impenetrable spheres, for a wide range of phase conductivities and inclusion volume fractions.
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Cites
Bruggeman, D. A. G. (1935) · Annalen der Physik · doi:10.1002/andp.19354160705 · Cited by 8,645
Cited by
Roberts, A. P., & Teubner, M. (1995) · Physical Review E · doi:10.1103/physreve.51.4141 · Cited by 153
Metadata
- Authors
- Torquato, S.
- Venue
- Journal of Applied Physics
- Publisher
- AIP Publishing
- Published
- 1985-11-15
- Volume
- 58
- Issue
- 10
- Pages
- 3790-3797
- ISSN
- 0021-8979 (ISSN-L)
- 1089-7550
- OpenAlex
- W2004959091
- Cited by
- 273
- References
- 1
- FWCI
- 14.49
- Type
- journal article
- Language
- en
- Open access
- closed
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- Torquato, S. (1985). Effective electrical conductivity of two-phase disordered composite media. Journal of Applied Physics. https://doi.org/10.1063/1.335593
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Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
