J Mater Sci Technol ›› 2000, Vol. 16 ›› Issue (04): 367-369.

• Research Articles • Previous Articles     Next Articles

Effective-medium theory for two-phase random composites with an interfacial shell

Qingzhong XUE   

  1. Department of Physics, University of Petroleum, Dongying 257062, China
  • Received:1999-04-13 Revised:1999-07-12 Online:2000-07-28 Published:2009-10-10
  • Contact: Qingzhong XUE

Abstract: According to the Bruggeman theory and Maxwell-Garnett theory, the effective dielectric constant of a two-phase random composite with an interfacial shell is presented. The nonlinearity of the theory is obvious. Especially, the theory is suited to study the dielectric properties of two-phase random composites with a spherical interfacial shell. The theoretical results on dielectric properties of polystyrene-barium titanate composites with an interfacial shell are in good agreement with experimental data.

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