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The lattice shift generated by two dimensional diffusion process
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DOI：10.1016/j.commatsci.2014.07.015.png)
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摘要
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The Poisson equation is used to calculate the drift velocity in the two-dimensional diffusion couple. This approach is based on the bi-velocity (Darken) method which combines the Darken and Brenner concepts that the volume velocity is essential in defining the local material velocity in multicomponent mixture at non-equilibrium. As an example the arbitrary binary system is considered. It is shown that (1) the two dimensional calculations should be applied with the stochastization method and (2) the drift term in mass conservation law does not affect the calculations. (C) 2014 Elsevier B.V. All rights reserved.
Keyword:
Interdiffusion
Bi-velocity
Darken
Two-dimensions
Drift
Potential field
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