All Physics Faculty Publications

Title

The Effects of Spatial Correlations on Steady State Nucleation Kinetics in Dense Fluid Systems

Document Type

Article

Journal/Book Title/Conference

Journal of Statistical Physics

Volume

17

Issue

3

Publication Date

1977

First Page

97

Last Page

110

DOI

10.1007/BF01106911

Abstract

A widely used expression for the steady-state nucleation rate is determined, in part, by the concentration of critical nuclei in a constrained equilibrium state of the system under consideration. We show that when a dense solvent is present, the values of the constrained equilibrium concentrations reflect the spatial correlations that arise from reactant-solvent molecule collisions. We evaluate the effect of such correlations for a simple, model fluid in terms of measurable reaction rate constants; our analysis shows that correlations influence each step in the multistep process of cluster formation and that the overall impact on the nucleation rate is cumulative. We argue that the very low, homogeneous nucleation rates observed in certain miscibility gap experiments are easily understood in the context of our analysis.

Comments

Published by Springer in Springer in Il Nuovo Cimento B. Publisher PDF is available through link above. Publisher requires a subscription to access article.

" target="_blank">Journal of Statistical Physics. Publisher PDF is available through link above. Publisher requires a subscription to access article.

http://www.springerlink.com/content/l747gmg0x5357rr4/