Physics – Condensed Matter – Materials Science
Scientific paper
2001-06-20
Physics
Condensed Matter
Materials Science
3 pages, 1 figure, to appear in J. Chem. Phys
Scientific paper
10.1063/1.1391481
Largely due to its role in nucleation and crystal-growth, the free energy of the crystal-melt interfacial free energy is an object of considerable interest across a number of scientific disciplines, especially in the materials-, colloid- and atmospheric sciences. Over fifty years ago, Turnbull observed that the interfacial free energies (scaled by the mean interfacial area per particle) of a variety of metallic elements exhibit a linear correlation with the enthalpy of fusion. This correlation provides an important empirical "rule-of-thumb" for estimating interfacial free energies, but lacks a compelling physical explanation. In this work we show that the interfacial free energies for close-packed metals are linearly correlated with the melting temperature, and are therefore primarily entropic in origin. We also show that the slope of this linear relationship can be determined with quantitative accuracy using a hard-sphere model, and that the correlation with the enthalpy of fusion reported by Turnbull follows as a consequence of the fact that the entropy of fusion for close-packed metals is relatively constant.
No associations
LandOfFree
The solid-liquid interfacial free energy of close-packed metals: hard spheres and the Turnbull coefficient does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The solid-liquid interfacial free energy of close-packed metals: hard spheres and the Turnbull coefficient, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The solid-liquid interfacial free energy of close-packed metals: hard spheres and the Turnbull coefficient will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-517401