From the Atomic Jump Frequencies to the Phenomenological Transport Coefficients

The SCMF theory based on an atomic model of atom‐vacancy exchange frequencies yields general expressions of the phenomenological coefficients Lij of a multi‐component alloy with any crystallographic structure. The limitations and future improvements of the Self‐Consistent Mean‐Field (SCMF) approach...

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Bibliographic Details
Published in:Advanced engineering materials 2006-12, Vol.8 (12), p.1239-1243
Main Authors: Nastar, M., Barbe, V.
Format: Article
Language:English
Subjects:
Condensed matter: structure, mechanical and thermal properties
Diffusion in solids
Exact sciences and technology
Moelling
Phase transformations
Physics
SCMF theory
Theory of diffusion and ionic conduction in solids
Transport properties of condensed matter (nonelectronic)
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Summary:The SCMF theory based on an atomic model of atom‐vacancy exchange frequencies yields general expressions of the phenomenological coefficients Lij of a multi‐component alloy with any crystallographic structure. The limitations and future improvements of the Self‐Consistent Mean‐Field (SCMF) approach are easily related to the statistical approximation of the thermodynamic correlations and to the time‐dependent effective interactions used to describe the kinetic correlations induced by the vacancy diffusion mechanism.
ISSN:1438-1656
1527-2648
DOI:10.1002/adem.200600188