ISSN:
1089-7690
Source:
AIP Digital Archive
Topics:
Physics
,
Chemistry and Pharmacology
Notes:
Using a recently developed cell theory of liquids and glasses, a simple model calculation of the equilibrium and quenched properties of two-dimensional systems is presented. The particular model chosen is essentially a Bernal liquid, so that the distribution of molecular coordination numbers plays a central role. The basic model of Bernal is simplified, however, in that the Bernal polygons available to the system are restricted to a few basic types and is further modified to allow for small-amplitude vibrations of the molecules about their lattice sites. Quenching is then effected by freezing the coordination-number distribution (which is determined by a single ordering parameter, in the present, simplified treatment) at its "glass-transition'' value. The equilibrium and quenched thermodynamic functions are calculated analytically, and substantial qualitative agreement with well-known characteristics of real liquids and glasses is obtained. © 1995 American Institute of Physics.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.468953
Permalink