Shear viscosity and self-diffusion coefficients are calculated for certain less-simple liquid metals at various temperatures. The basic assumption undertaken is that these properties of a liquid metal resemble those of an appropriate hard sphere fluid. The temperature dependence of the basic ingredients, i. e. the hard sphere diameter and packing fraction is considered via a full thermodynamic perturbation formalism. The essential features inherited by these metals are included in the relevant electron-ion interactions. A variational procedure leading to a minimization of the free energy is employed to determine the optimum values of the hard sphere diameters and packing fractions. These optimal and self-consistent ingredients are employed in computing the shear viscosity and self-diffusion coefficients of Ag, Hg, Ga, and Sn. The calculated results are found to be in agreement with the experimental and the available theoretical results for most of these metals.
|Number of pages||8|
|Journal||Physica Status Solidi (B) Basic Research|
|Publication status||Published - Feb 1986|
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics