ON THE STRUCTURE OF HARD-SPHERE SUSPENSIONS IN A DISCRETE SOLVENT

Suspensions of spherical particles in a liquid are modelled by a binary mixture of small and large spheres, with diameters crl and uz, which accounts for the discrete nature of the solvent. It is shown within the Percus-Yevick approximation that in the limit, the pair distribution function of the large spheres does not go over to that of a one-component fluid at the same density, but exhibits a &peak at contact due to an expelled solvent effect. © 1990 IOP Publishing Ltd.