Model for the elasticity of compressed emulsions

被引：169

作者：

Lacasse, MD ^{[1
]}

Grest, GS ^{[1
]}

Levine, D ^{[1
]}

Mason, TG ^{[1
]}

Weitz, DA ^{[1
]}

机构：

[1] TECHNION ISRAEL INST TECHNOL, DEPT PHYS, IL-32000 HAIFA, ISRAEL

来源：

PHYSICAL REVIEW LETTERS | 1996年 / 76卷 / 18期

关键词：

D O I：

10.1103/PhysRevLett.76.3448

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present a new model to describe the unusual elastic properties of compressed emulsions. The response of a single droplet under compression is investigated numerically for different Wigner-Seitz cells. The response is softer than harmonic, and depends on the coordination number of the droplet. Using these results, we propose a new effective interdroplet potential which is used to determine the elastic response of a monodisperse collection of disordered droplets as a function of volume fraction. Our results are in excellent agreement with recent experiments. This suggests that anharmonicity together with disorder are responsible for the quasilinear increase of G and Pi observed at phi(c).

引用

页码：3448 / 3451

页数：4

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