Electrorheological fluids using bi-dispersed particles

被引：17
|
作者：
Tam, WY [1 ]
Wen, WJ [1 ]
Sheng, P [1 ]
机构：
[1] Hong Kong Univ Sci & Technol, Dept Phys, Kowloon, Hong Kong, Peoples R China
来源：
PHYSICA B | 2000年 / 279卷 / 1-3期
关键词：
electrorheological fluid; bi-dispersed particles; ferroelectric nanoparticles;
D O I：
10.1016/S0921-4526(99)00718-8
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
We report a large enhancement of static yield stress for electrorheological fluids by adding ferroelectric nanoparticles of lead zirconate titanate (PZT) or lead titanate (PbTiO3) to ER fluids consisting of 50 mu m glass spheres. It is found that the enhancement peaks at certain nanoparticle/microparticle ratios for fixed solid/liquid volume fractions. The results are explained by calculations using an effective medium approach, based on the physical picture that the nanoparticles modify the properties of the liquid and solid components. (C) 2000 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：171 / 173
页数：3
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