2009/03/22 by Anthony N. Papathanassiou, A. N. Papathanassiou · 1 citation
Chemical Engineering · Engineering · Materials Science · Physics and Astronomy · #Material Dynamics and Properties #Phase Equilibria and Thermodynamics #Thermodynamic properties of mixtures #cond-mat.soft #cond-mat.stat-mech
paper · pdf · doi:10.1103/physreve.79.032501
published as Phys. Rev. E 79, 032501 (2009) · Accepted for publication in Phys. Rev. E (2009) Minor typos corrected in the 2nd version
arxiv created 2009/03/22 · openalex publication_date 2009/03/27 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Fundamental thermodynamics and an earlier elastic solid-state point defect model [P. Varotsos and K. Alexopoulos, Phys. Rev. B 15, 4111 (1977); Phys. Rev. B 18, 2683 (1978)] are employed to formulate an analytical second-order polynomial function describing the density scaling of the diffusion coefficient in viscous liquids. The function parameters are merely determined by the scaling exponent, which is directly connected with the Grüneisen constant. Density scaling diffusion coefficient isotherms obtained at different pressures collapse on a unique master curve, in agreement with recent computer simulation results of Lennard-Jones viscous liquids [D. Coslovich and C. M. Roland, J. Phys. Chem. 112, 1329 (2008)].