Dynamic rheological properties of viscoelastic magnetic fluids in uniform magnetic fields

被引：32

作者：

Yamaguchi, Hiroshi ^{[1
]}

Niu, Xiao-Dong ^{[1
]}

Ye, Xiao-Jiang ^{[1
,2
]}

Li, Mingjun ^{[3
]}

Iwamoto, Yuhiro ^{[1
]}

机构：

[1] Doshisha Univ, Energy Convers Res Ctr, Kyoto 602, Japan

[2] Wuhan Inst Technol, Sch Sci, Wuhan, Peoples R China

[3] Xiangtan Univ, Dept Mech Engn, Xiangtan, Hunan, Peoples R China

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2012年 / 324卷 / 20期

关键词：

Viscoelatic magnetic fluid; Storage modulus; Loss modulus; MAGNETORHEOLOGICAL FLUIDS; MICROFLUIDIC MIXER;

D O I：

10.1016/j.jmmm.2012.04.006

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The dynamic rheological properties of viscoelastic magnetic fluids in externally applied uniform magnetic fields are investigated by a laboratory-made cone-plate rheometer in this study. In particular, the effects of the magnetic field on the viscoelastic properties (the complex dynamic modulus) of the viscoelastic magnetic fluids are studied. In the investigation, three viscoelastic magnetic fluids are made by mixing a magnetic fluid and a viscoelastic fluid with different mass ratios. As a supplementation to the experimental investigation, a theoretical analysis is also presented. The present study shows that the viscosity and elasticity of the viscoelastic magnetic fluids are significantly influenced by the magnetic field and the concentrations of the magnetic particles in the test fluids. Theoretical analysis qualitatively explains the present findings. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：3238 / 3244

页数：7

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