Molecular dynamic simulation technique was employed to determine self-diffusion coefficients and activation energies in liquid noble metals due to their importance in the industrial applications. The embedded atom method potentials for Ag and Au, developed for solid-state simulations, were shown to produce plausible results for liquid state. The simulated values of diffusion coefficients in the liquid state compare very well with the experimental and the calculated reported results. The calculated diffusion data follows Arrhenius equation which enables to find the pre-factor and the activation energy for liquid state diffusion. The deduced activation energies of self-diffusion were found close to the experimental values.

Study of Diffusion Coefficients in Liquid Noble Metals. J.I.Akhter, E.Ahmed, M.Ahmad: Materials Chemistry and Physics, 2005, 93[2-3], 504-7