Phase equilibria of asymmetric hard sphere mixtures

被引:29
作者
Almarza, NG [1 ]
Enciso, E [1 ]
机构
[1] Univ Complutense, Fac Ciencias Quim, Dept Quim Fis 1, E-28040 Madrid, Spain
来源
PHYSICAL REVIEW E | 1999年 / 59卷 / 04期
关键词
D O I
10.1103/PhysRevE.59.4426
中图分类号
O35 [流体力学]; O53 [等离子体物理学];
学科分类号
070204 ; 080103 ; 080704 ;
摘要
The phase diagram of mixtures of hard spheres with additive diameters is studied. The case of very different sizes is treated by means of mapping the two component system on a one component problem. In this monocomponent system large particles are explicitly considered, whereas the effects of the small component are included through an additional effective interaction potential between large particles. The effective potential is used to analyze the phase diagram of the mixture by means of computer simulation techniques. Results for the behavior at low density of small spheres seem to indicate that no fluid-fluid equlibria occur. On the other hand, the results show how this kind of mixture can exhibit equilibria between isostructural crystalline phases.
引用
收藏
页码:4426 / 4433
页数:8
相关论文
共 24 条
[1]  
AKASURA S, 1954, J CHEM PHYS, V22, P1255
[2]  
Allen M. P., 1987, Computer Simulation of Liquids
[3]  
ALMARZA NG, 1998, P 7 SPAN M STAT PHYS, V4, P159
[4]   HYPERNETTED-CHAIN CLOSURE WITH BRIDGE DIAGRAMS - ASYMMETRIC HARD-SPHERE MIXTURES [J].
ATTARD, P ;
PATEY, GN .
JOURNAL OF CHEMICAL PHYSICS, 1990, 92 (08) :4970-4982
[5]   SPHERICALLY INHOMOGENEOUS FLUIDS .2. HARD-SPHERE SOLUTE IN A HARD-SPHERE SOLVENT [J].
ATTARD, P .
JOURNAL OF CHEMICAL PHYSICS, 1989, 91 (05) :3083-3089
[6]   Depletion effects in binary hard-sphere fluids [J].
Biben, T ;
Bladon, P ;
Frenkel, D .
JOURNAL OF PHYSICS-CONDENSED MATTER, 1996, 8 (50) :10799-10821
[7]   ISOSTRUCTURAL SOLID-SOLID TRANSITION IN CRYSTALLINE SYSTEMS WITH SHORT-RANGED INTERACTION [J].
BOLHUIS, P ;
HAGEN, M ;
FRENKEL, D .
PHYSICAL REVIEW E, 1994, 50 (06) :4880-4890
[8]   HARD-SPHERE EQUATION OF STATE [J].
BOUBLIK, T .
JOURNAL OF CHEMICAL PHYSICS, 1970, 53 (01) :471-&
[9]   Integral equation theory description of phase equilibria in classical fluids [J].
Caccamo, C .
PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 1996, 274 (1-2) :1-105
[10]  
DICKMAN R, 1997, J CHEM PHYS, V107, P295