Phase behavior of additive binary mixtures in the limit of infinite asymmetry
- 1 October 1998
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review E
- Vol. 58 (4) , R4080-R4083
- https://doi.org/10.1103/physreve.58.r4080
Abstract
We provide an exact mapping between the density functional of a binary mixture and that of the effective one-component fluid in the limit of infinite asymmetry. The fluid of parallel hard cubes is thus mapped onto that of parallel adhesive hard cubes. Its phase behavior reveals that demixing of a very asymmetric mixture can only occur between a solvent-rich fluid and a permeated large particle solid or between two large particle solids with different packing fractions. Comparing with hard spheres mixtures we conclude that the phase behavior of very asymmetric hard-particle mixtures can be determined from that of the large component interacting via an adhesivelike potential.Keywords
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