Analysis of mean square penetration depth in grain boundary diffusion |
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| Authors: | Y T Chou Y Z Li C T Liu |
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| Affiliation: | (1) the Department of Materials Science and Engineering, Lehigh University, 18015 Bethlehem, PA;(2) the Metals and Ceramics Division, Oak Ridge National Laboratory, 37831 Oak Ridge, TN |
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| Abstract: | Exact and approximate expressions for mean square penetration depth (MSPD) in grain boundary diffusion are derived. The MSPDs
in boundary diffusion are functionally different from those in lattice diffusion. The quantitative results obtained provide
more reliable estimates for the penetration depth of a diffusant in polycrystalline materials, thin films, and bicrystals. |
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