Effect of particle shape in magnetorheology

被引：129

作者：

de Vicente, Juan ^{[1
]}

Vereda, Fernando ^{[1
]}

Pablo Segovia-Gutierrez, Juan ^{[1
]}

del Puerto Morales, Maria ^{[2
]}

Hidalgo-Alvarez, Roque ^{[1
]}

机构：

[1] Univ Granada, Fac Ciencias, Dept Fis Aplicada, E-18071 Granada, Spain

[2] CSIC, Inst Ciencia Mat Madrid, E-28049 Madrid, Spain

来源：

JOURNAL OF RHEOLOGY | 2010年 / 54卷 / 06期

关键词：

RHEOLOGICAL PROPERTIES; SHEAR-FLOW; MAGNETIC-FIELD; ELECTRORHEOLOGICAL FLUID; BEHAVIOR; SUSPENSIONS; MODEL; STABILITY;

D O I：

10.1122/1.3479045

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

Magnetorheological (MR) properties were investigated for sphere, plate, and rod-like iron particles in suspension under the presence of magnetic fields to ascertain the effect of particle shape in MR performance. A novel two-step synthesis route for micrometer sized iron particles with different morphologies is described in detail. Small-amplitude dynamic oscillatory and steady shear flow measurements were carried out in the presence of external magnetic fields. Finite element method calculations were performed to explain the effect of particle shape in the magnetic field-induced yield stress. Compared to their sphere and plate counterparts, rod-like particle based MR fluids present a larger storage modulus and yield stress. The effect of particle shape is found to be negligible at large particle content and/or magnetic field strengths. (C) 2010 The Society of Rheology. [DOI: 10.1122/1.3479045]

引用

页码：1337 / 1362

页数：26

共 55 条

[51] Rheological properties and particle behaviors of a nondilute colloidal dispersion composed of ferromagnetic spherocylinder particles subjected to a simple shear flow: Analysis by means of mean-field approximation for the two typical external magnetic field directions [J].

Watanabe, Tomonori ;

Aoshima, Masayuki ;

Satoh, Akira .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2006, 302 (01) :347-355

[52] Bidisperse magnetorheological fluids using Fe particles at nanometer and micron scale [J].

Wereley, NM ;

Chaudhuri, A ;

Yoo, JH ;

John, S ;

Kotha, S ;

Suggs, A ;

Radhakrishnan, R ;

Love, BJ ;

Sudarshan, TS .

JOURNAL OF INTELLIGENT MATERIAL SYSTEMS AND STRUCTURES, 2006, 17 (05) :393-401

[53]

Wollny K., 2002, Applied Rheology, V12, P25, DOI DOI 10.1515/ARH-2002-0003

[54] Titanate nano-whisker electrorheological fluid with high suspended stability and ER activity [J].

Yin, JB ;

Zhao, XP .

NANOTECHNOLOGY, 2006, 17 (01) :192-196

[55] Electrorheological fluids based on nano-fibrous polyaniline [J].

Yin, Jianbo ;

Zhao, Xiaopeng ;

Xia, Xiang ;

Xiang, Liqin ;

Qiao, Yinpo .

POLYMER, 2008, 49 (20) :4413-4419

← 1 2 3 4 5 6 →