A concept of generation and annihilation of vacancies at non-ideal dense sources and sinks for vacancies was incorporated into the standard Monte Carlo model for vacancy-mediated diffusion. This model enables to treat the vacancy wind as well as the deformation of the specimen and the shift of the Kirkendall plane. The Monte Carlo model was used for testing the macroscopic theories of diffusion by Darken (1948, 1971) and Moleko et al. (1989). Agreement with the self-consistent Moleko et al. theory was excellent. On the other hand, agreement with the classical Darken theory which was frequently to explain the Kirkendall effect was rather poor.

Comparison of Monte Carlo Simulations and Macroscopic Theories of Diffusion in Systems with Non-Ideal Sources and Sinks for Vacancies. J.Ženíšek, J.Svoboda, F.D.Fischer: Philosophical Magazine, 2005, 85[21], 2363-89