Analysis of the effective diffusivity and conductivity in three-phase composite material consisting of the host and coated inclusions

Title: Analysis of the effective diffusivity and conductivity in three-phase composite material consisting of the host and coated inclusions
Creator: Belova, Irina Veniaminovna; Murch, Graeme Elliot
Relation: Diffusion in Materials - DIMAT2004. (Krakow, Poland 18 - 23 July 2004)
Publisher: Trans Tech Publications
Resource Type: conference paper
Date: 2005
Description: In this paper, a geometric model for describing the effective ionic conductivity in a composite solid electrolyte is analysed. The model makes use of insulating particles that are coated with a highly ionically conducting phase and embedded in an ionically conducting matrix. Using a straightforward Maxwell type analysis we derive expressions for the effective ionic conductivity and diffusivity in the composite. It is shown by a Monte Carlo method that at low volume fractions of insulating phase this Maxwell analysis provides much better agreement than previous descriptions.
Subject: diffusion; ionic conductivity; composite electrolyte; dispersed ionic conductors; solid electrolytes; percolation model; theoretical-model; particle-size; monte-carlo; insulator; enhancement; boundaries; transport
Identifier: http://hdl.handle.net/1959.13/24455
Identifier: uon:51
Identifier: ISBN:3-908451-07-8
Language: eng

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