General expression for effective diffusivity of foreign atoms migrating via a fast intermediate

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General expression for effective diffusivity of foreign atoms migrating via a fast intermediate

In many solids, diffusion of foreign atoms takes place primarily through highly mobile intermediate species that periodically exchange with atoms in the crystalline lattice. The governing reaction-diffusion equations include a diffusion coefficient as well as kinetic parameters describing the exchange of the intermediate species. Yet it is often convenient to model a diffusive process in terms ...

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ژورنال

عنوان ژورنال: Journal of Applied Physics

سال: 2010

ISSN: 0021-8979,1089-7550

DOI: 10.1063/1.3294479