Fluid-fluid phase separation in hard spheres with a bimodal size distribution
Statistical Mechanics
2009-10-31 v2 Soft Condensed Matter
Abstract
The effect of polydispersity on the phase behaviour of hard spheres is examined using a moment projection method. It is found that the Boublik-Mansoori-Carnahan-Starling-Leland equation of state shows a spinodal instability for a bimodal distribution if the large spheres are sufficiently polydisperse, and if there is sufficient disparity in mean size between the small and large spheres. The spinodal instability direction points to the appearance of a very dense phase of large spheres.
Keywords
Cite
@article{arxiv.cond-mat/9807117,
title = {Fluid-fluid phase separation in hard spheres with a bimodal size distribution},
author = {P. B. Warren},
journal= {arXiv preprint arXiv:cond-mat/9807117},
year = {2009}
}
Comments
7 pages, 3 figures, moderately REVISED following referees' comments (original was 4 pages, 3 postscript figures)