Orientational and phase-coexistence behaviour of hard rod–sphere mixtures

Orientational and phase-coexistence behaviour of hard rod-sphere mixtures

Results are presented from Monte Carlo simulations of bulk mixtures of Hard Gaussian Overlap particles with an aspect ratio of 3:1 and hard spheres with diameters equal to the breadths of the rods. For sphere number-concentrations of 50% and lower, compression of the isotropic fluid results in formation of a homogeneous (i.e. compositionally mixed) nematic phase. The volume fraction of this iso...

Publisher's Note: "Orientational ordering and phase behaviour of binary mixtures of hard spheres and hard spherocylinders" [J. Chem. Phys. 143, 044906 (2015)].

Phase diagrams of binary mixtures of hard rods in an external orientational Ðeld

We study a binary mixture of hard spherocylinders with the same diameter (D) and di†erent length (L 2[ L 1 in the absence and presence of a static external electric (magnetic) Ðeld on the basis of the Onsager theory. In the zero Ðeld, we Ðnd that the usual isotropicÈnematic phase transition takes place only between the length ratio of 1È2.9, the reentrant phenomenon occurs for and the nematicÈn...

Phase Behaviour of Colloid + Polymer Mixtures

A new treatment of the phase behaviour of a colloid + nonadsorbing polymer mixture is described. The calculated phase diagrams show marked polymer partitioning between coexisting phases, an effect not considered in the usual effective-potential approaches to this problem. We also predict that under certain conditions an area of three-phase coexistence should appear in the phase diagram. Introdu...

Phase behaviour of hard board-like particles.

We examine the phase behaviour of colloidal suspensions of hard board-like particles (HBPs) as a function of their shape anisotropy, and observe a fascinating spectrum of nematic, smectic, and columnar liquid-crystalline phases, whose formation is entirely driven by excluded volume effects. We map out the phase diagram of short and long HBPs by gradually modifying their shape from prolate to ob...