Modeling the electrical transfer in a mixture of disperse dielectric and finely disperse solid- or liquid-phase conductor
The dependence of the electrical conductivity of a mixture of finely disperse graphite with quartz sand and moist quartz sand on the composition is investigated. It is shown that, in the region of critical and near-critical concentrations of the conducting component, the dependence is satisfactorily described by two power-law equations of flow theory with two different threshold values of the conducting-phase concentration. In this concentration range, the conductivity of the sandgraphite system is satisfactorily modeled by a lattice bond problem. The electrical transfer in the sand-KCl solution system may be modeled by a lattice point problem in the representation of the moist system as a mixture of dielectric particles coated with an electrolyte film (conducting particles) and dry dielectric particles (nonconducting particles).
KeywordsQuartz Graphite Electrical Conductivity Lattice Point Quartz Sand
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- 1.L. A. Bel'kova, E. A. Zamotrinskaya, et al., Izv. Vyssh. Uchebn. Zaved., Fiz., No. 4, 85 (1982).Google Scholar
- 2.L. A. Bel'kova, E. A. Zamotrinskaya, et al., Izv. Vyssh. Uchebn. Zaved., Fiz., No. 7, 10 (1982).Google Scholar
- 3.S. Kirkpatrik, Nov. Fiz. Tverd. Tela, No. 7, 249 (1977).Google Scholar
- 4.E. A. Zamotrinskaya, V. M. Nesterov, et al., Izv. Vyssh. Uchebn. Zaved., Fiz., No. 9, 117 (1979).Google Scholar
- 5.V. V. Zagoskii, V. M. Nesterov, et al., Izv. Vyssh. Uchebn. Zaved., Fiz. No. 7, 74 (1981).Google Scholar
- 6.S. V. Nerpin, and A. F. Chudnovskii, Soil Physics [in Russian], Nauka, Moscow (1967), p. 141.Google Scholar