Classical molecular dynamics simulation was used to study the interdiffusion properties of liquid Na-K alloys versus concentration for compositions ranging from 10 to 90at%Na. The self- and interdiffusion coefficients were deduced from the successive configurations. The results were compared with the predictions of Darken's law and the validity of this approximation was examined.

Molecular Dynamics Simulation Study of the Interdiffusion Properties of Liquid Na-K Alloys. Wax, J.F., Jakse, N.: Journal of Physics - Conference Series, 2008, 98[4], 042001