A semi-empirical universal relationship proposed by Rosenfeld for dimensionless transport coefficients in dense fluids, and a universal scaling law proposed by Dzugutov for atomic diffusion in liquids, were tested for divers liquid metals by using molecular dynamics simulations. Interatomic potentials derived from the glue potential and second-moment approximation of tight-binding scheme were used to study liquid metals. The simulation results gave sound support to the above universal scaling laws. Following Dzugutov, a universal scaling relationship was also found between the viscosity coefficient and the excess entropy. The simulation results suggested that there existed an approximately exponent correlation between the reduced transport coefficients and the corresponding packing density.

Excess Entropy Scaling for Transport Coefficients - Diffusion and Viscosity in Liquid Metals. G.X.Li, C.S.Liu, Z.G.Zhu: Journal of Non-Crystalline Solids, 2005, 351[10-11], 946-50