Effective interionic pair potentials and properties for liquid sodium and potassium

✍ Scribed by Y Waseda; K Suzuki

• Publisher: Elsevier Science
• Year: 1973
• Weight: 788 KB
• Volume: 21
• Category: Article
• ISSN: 0001-6160
• DOI: 10.1016/0001-6160(73)90022-9

✦ Synopsis

Effective interionic pair potentials for liquid sodium and potassium have been derived from recent S-ray diffraction data using the Born-Green and Percus-Yevick equations. The results, in good agreement with pseudopotential or molecular dynamics calculations, were obtained in the case of the Born-Green equation.

Self-diffusion coefficients of these metals were calculated from the Born-Green pair potential and the pair correlation function using the kinetic theory of fluids. The contributions of the hard, soft and cross-effect between the hard and soft forces to the self-diffusion coefficient were discussed. In addition, viscosity coefficients and surface tensions were calculated. In all cases, adequate agreement with experimental data was obtained.