In the first approximation, diffusion is assumed to be driven by gradients in concentration. More accurately, it is driven by gradients in the free energy and there are circumstances in which it can occur against a concentration gradient. The theory for this is described, and illustrated with the concept of spinodal decomposition.
This lecture should be most useful to those interested in physical metallurgy. It was originally given at Cambridge University by Professor H. K. D. H. Bhadeshia. The accompanying web site has more information.In the first approximation, diffusion is assumed to be driven by gradients in concentration. More accurately, it is driven by gradients in t...all »In the first approximation, diffusion is assumed to be driven by gradients in concentration. More accurately, it is driven by gradients in the free energy and there are circumstances in which it can occur against a concentration gradient. The theory for this is described, and illustrated with the concept of spinodal decomposition.
This lecture should be most useful to those interested in physical metallurgy. It was originally given at Cambridge University by Professor H. K. D. H. Bhadeshia. The accompanying web site has more information.«
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