The enhancement of solvent diffusivity by adding very small amounts of solute was considered. The random alloy model in the dilute limit was used. Very high-precision results on solvent correlation factors, as obtained from Monte Carlo calculations by averaging over 6 x 107 atoms during runs of 2000 jumps per atom, were reported here. The results were expressed in terms of the usual solvent enhancement factors. It was found that there was good agreement with the Holdsworth-Elliott theory, and excellent agreement with the theory of Moleko et al.; but not with other theories.

Solvent Diffusion Kinetics in the Dilute Random Alloy. I.V.Belova, G.E.Murch: Philosophical Magazine, 2003, 83[3], 393