The enhancement of solvent diffusivity by the addition of very small amounts of solute was studied. The random alloy model in the dilute limit was used. No Monte Carlo calculations were available for evaluating the available theoretical treatments. In the present study, very high precision results on solvent correlation factors as obtained from Monte Carlo calculations, with averaging over 6 x 107 atoms and very long runs (2000 jumps per atom), were report. The results were expressed in terms of the usual solvent enhancement factors, b1 and b2. There was good agreement with the theory of Holdsworth and Elliott and excellent agreement with the theory of Moleko et al. but not with other available theories.

Solvent Diffusion Kinetics in the Dilute Random Alloy. I.V.Belova, G.E.Murch: Philosophical Magazine, 2003, 83[3], 393-9