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Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.13/33534

Title
The effective diffusivity in two-phase material
Author/Creator
Belova, I. V.;  Murch, G. E.
Institution
The University of Newcastle. Faculty of Engineering & Built Environment, School of Engineering
Description
In this paper we employ Monte Carlo computer simulation to test the extended Maxwell-Garnett expression for the effective diffusivity in a simple model of a two phase material. We determine the effective diffusivity in f.c.c., b.c.c. and s.c. type arrangements of dispersed spheres at variable densities and for cases where the diffusivity in the dispersed phase was less than, and greater than, the diffusivity in the matrix phase. It is shown that the above equation agrees very well with the simulation data for all densities up to where the spheres of the dispersed phase touch and over six orders of magnitude in the ratio of the diffusivity of the dispersed phase to the diffusivity of the matrix phase.
Relation
Defect and Diffusion Forum Vol. 218-220, p. 79-86
Publisher Link
http://dx.doi.org/10.4028/3-908450-81-0
Date
2003
Publisher
Trans Tech Publications
Keyword(s)
diffusivity;  diffusion coefficient;  two-phase;  Monte Carlo
Resource Type
journal article
Identifier
http://hdl.handle.net/1959.13/33534
Identifier
ISSN:1012-0386
Reviewed
Reviewed
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Subject
"Defect and Diffusion Forum"
 
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