Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.13/27354

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Title
Diffusion in nanocrystalline materials
Author/Creator
Belova, I. V.;  Murch, G. E.
Description
The problem of calculating the effective diffusivity in nanocrystalline materials is addressed. Two simple two-dimensional grain patterns are constructed and several equations are derived from the Hart–Mortlock and Maxwell–Garnett equations. Monte Carlo computer simulation is used to test the validity of the various equations. It is shown that one of the derived equations provides an excellent description of the effective diffusivities up to a volume fraction of atoms in grain boundaries of 40%.
Relation
Journal of Physics and Chemistry of Solids Vol. 64, Issue 5, p. 873-878
Publisher Link
http://dx.doi.org/10.1016/S0022-3697(02)00421-3
Date
2003
Publisher
Elsevier Science Ltd
Keyword(s)
nanocrystalline materials;  diffusivity;  grain boundaries;  segregation factor
Resource Type
journal article
Identifier
http://hdl.handle.net/1959.13/27354
Identifier
ISSN:0022-3697
Reviewed
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Subject
"Journal of Physics and Chemistry of Solids"
 
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