Demixing in hard ellipsoid rod-plate mixtures
نویسندگان
چکیده
منابع مشابه
Hard Ellipsoid Rod-plate Mixtures: Onsager Theory and Computer Simulations
The liquid crystal phase transitions for a classical uid mixture of hard ellip-soids with aspect ratios 10 : 1 and 1 : 10, and equal volume, has been studied at two compositions using Onsager theories and by computer simulation. The original Onsager form of the Helmholtz free energy contains the second virial coeecient, but the eeect of higher virial coeecients may be taken into account indirec...
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We argue that the possibility to observe a stable biaxial nematic phase in a binary mixture of prolate and oblate hard particles is seriously limited by the existence of entropydriven demixing. This result follows from a simple Onsager-type density functional theory. An important feature15 the coupling of the demixing mechanism to the orientational order of the system. The strength of this coup...
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In previous work, one of us calculated the Solvation force of hard ellipsoid fluid with hard Gaussian overlap potential using hard needle wall interaction and non-linear equation proposed by Grimson- Rickyazen. In present work, using density functional theory and extended restricted orientation model, the solvation force of hard ellipsoid fluid in presence of more realistic rod- sphere and rod-...
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– The phase behavior of binary fluid mixtures of hard hyperspheres in four and five dimensions is investigated. Spinodal instability is found by using a recent and accurate prescription for the equation of state of the mixture that requires the equation of state of the single component fluid as input. The role played by the dimensionality on the possible metastability of the demixing transition...
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The demixing transition of a binary fluid mixture of additive hard spheres is analyzed for different size asymmetries by starting from the exact low-density expansion of the pressure. Already within the second virial approximation the fluid separates into two phases of different composition with a lower consolute critical point. By successively incorporating the third, fourth, and fifth virial ...
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ژورنال
عنوان ژورنال: The Journal of Chemical Physics
سال: 1997
ISSN: 0021-9606,1089-7690
DOI: 10.1063/1.474012