- Title
- Monte Carlo modelling of the effective diffusivity of a composite material
- Creator
- Belova, Irina V.; Murch, Graeme E.
- Relation
- Defect and Diffusion Forum Vol. 261-262, p. 103-108
- Publisher Link
- http://dx.doi.org/10.4028/3-908454-21-2
- Publisher
- Trans Tech Publications
- Resource Type
- journal article
- Date
- 2007
- Description
- 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.
- Subject
- diffusion; Monte Carlo; composites; effective diffusivity
- Identifier
- http://hdl.handle.net/1959.13/33494
- Identifier
- uon:3232
- Identifier
- ISSN:1012-0386
- Language
- eng
- Full Text
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