Paper Title:
Monte Carlo Modelling of the Effective Diffusivity in Composite Material
  Abstract

In this paper we perform a systematic Monte Carlo study of the effective diffusivity in a 2D composite in which the dispersed phase (squares) is arranged in square planar and brick-work patterns within the matrix phase. We focus on the commonly encountered case where the dispersed phase has a much lower diffusivity than the matrix and where the segregation of the diffusant favours the matrix phase. It is found that while the generalized Maxwell-Garnett Equation generally describes the effective diffusivity semi-quantitatively, in order to have an accurate representation of the effective diffusivity at moderate volume fractions of the dispersed phase, it is necessary to use a more refined Maxwell-Garnett Equation that takes into account the actual shape and geometry of the dispersed phase.

  Info
Periodical
Defect and Diffusion Forum (Volumes 261-262)
Edited by
David J. Fisher
Pages
103-108
DOI
10.4028/www.scientific.net/DDF.261-262.103
Citation
I. V. Belova, G. E. Murch, "Monte Carlo Modelling of the Effective Diffusivity in Composite Material", Defect and Diffusion Forum, Vols. 261-262, pp. 103-108, 2007
Online since
January 2007
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Price
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