Structure and phase diagram of mixtures of hard spheres in the limit of infinite size ratio
Structure and phase diagram of mixtures of hard spheres in the limit of infinite size ratio
复制标题
无限尺寸比极限下硬球混合物的结构和相图
DOI：
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发表时间：
1998
期刊：
影响因子：
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通讯作者：
C. Vega
中科院分区：
文献类型：
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作者：
C. Vega
本文考虑了尺寸比为无穷大时硬球混合物的相图。这等价于点和硬球的混合问题，条件是点不能穿透球。该体系的物态方程和自由能可以与纯硬球体系的物态方程和自由能相联系。对于流体和固相都是如此。在这种方式中，它示出，在无限的尺寸比的限制，没有流体-流体分离是可能的硬球的二元混合物和冻结发生在相同的体积分数比纯硬球。
The phase diagram of a mixture of hard spheres for the particular case of infinite size ratio is considered. This is equivalent to the problem of a mixture of points and hard spheres, with the condition that the points can not penetrate the spheres. The equation of state and free energy of this system can be related to that of a pure hard sphere system. This is true for the fluid and for the solid phase. In this way it is shown that in the limit of infinite size ratio, no fluid-fluid separation is possible for binary mixtures of hard spheres and that freezing occurs at the same volume fraction than for pure hard spheres.