Effective diffusion coefficient and diffusion-controlled reactions in insulating solids with defects
Yu. H. Kalnin, Peter Zapol
Abstract
Yu. H. Kalnin, Peter Zapol
Abstract
The expressions for effective diffusion coefficient are obtained in the mean field approximation for two-phase system for spatial dimensions of 1, 2 and 3. The existence of potential barrier for diffusion on the phase boundary was taken into account via the boundary conditions. Obtained formulae could be applied in the theory of diffusion-controlled reactions and for interpreting the experimental data on defect diffusion in two-phase media.
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The expressions for effective diffusion coefficient are obtained in the mean field approximation for two-phase system for spatial dimensions of 1, 2 and 3. The existence of potential barrier for diffusion on the phase boundary was taken into account via the boundary conditions. Obtained formulae could be applied in the theory of diffusion-controlled reactions and for interpreting the experimental data on defect diffusion in two-phase media.
Key concepts: Effective diffusion coefficient, Diffusion, Grain boundary diffusion coefficient, Photon transport in biological tissue, Phase (matter), Boundary (topology), Materials science, Phase boundary