Abstract

The percolation and clustering in binary mixtures with strong attraction between unlike particles is investigated. More specifically, the authors consider a binary mixture in which the interaction between unlike particles is described by Baxter's sticky hard sphere (SHS) potential, while the interaction amongst the same species is the hard sphere repulsion. The Ornstein-Zernike (OZ) equation for the pair connectedness is solved under the Percus-Yevick (PY) approximation. The percolation line always approaches zero as the density vanishes and also percolation only occurs above some lower limit of density. The percolation line is compared with the phase transition line and it is found that the existence of the phase transition line restricts the range of concentration for which percolation occurs. Moreover, the influences of density, stickiness, concentration and particle size on the pair connectedness, percolation line, mean cluster size and the coordination number are examined.

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