| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1483028 | Journal of Non-Crystalline Solids | 2010 | 5 Pages |
Abstract
On the basis of the analysis of liquid molecules coordinated with their nearest neighbors during cooling, a correspondent congregation model is presented for the vitrification process in supercooled liquid. The potential energy of conformers congregated together is described by Lennard-Jones-Gauss potential. It is shown that there exists universal correlation between fragility and congregation. The results suggest that a liquid is of more fragile property with lower coordination energy. A modified Vogel-Tammann-Fulcher equation is derived from temperature dependent coordination energy, and correlation between fragility and temperature on colloidal system is discussed.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Ping Feng, Wan Q. Cao,