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

✍ Scribed by Dmytro Antypov; Douglas J. Cleaver

Publisher
Elsevier Science
Year
2003
Tongue
English
Weight
250 KB
Volume
377
Category
Article
ISSN
0009-2614

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✦ Synopsis

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 isotropic-nematic transition is found to increase approximately linearly with sphere concentration. On compression to higher volume fractions, however, this homogeneous nematic phase separates out into coexisting nematic and isotropic phases.

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