Coexistence of liquid and solid phases in flowing soft-glassy materials

被引：356

作者：

Coussot, P ^{[1
]}

Raynaud, JS ^{[1
]}

Bertrand, F ^{[1
]}

Moucheront, P ^{[1
]}

Guilbaud, JP ^{[1
]}

Huynh, HT ^{[1
]}

Jarny, S ^{[1
]}

Lesueur, D ^{[1
]}

机构：

[1] LMSGC, F-77420 Champs Sur Marne, France

来源：

PHYSICAL REVIEW LETTERS | 2002年 / 88卷 / 21期

关键词：

D O I：

10.1103/PhysRevLett.88.218301

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Magnetic-resonance-imaging rheometrical experiments show that concentrated suspensions or emulsions cannot flow steadily at a uniform rate smaller than a critical value ((gamma)over dot(c) ). As a result, a "liquid" region (sheared rapidly, i.e., at a rate larger than (gamma)over dot(c) ) and a "solid" region (static) coexist. The behavior of the fluid in the liquid region follows a simple power-law model, while the extent of the solid region increases with the degree of jamming of the material.

引用

页码：2183011 / 2183014

页数：4

共 25 条

[1] A two-time-scale, two-temperature scenario for nonlinear rheology [J].