The influence of temperature and of a longitudinal magnetic field upon the electrical conductivity of magnetorheological suspensions

被引:20
作者
Bica, I [1 ]
机构
[1] W Univ Timisoara, Fac Phys, Timisoara 300223, Romania
关键词
magnetorheological suspension; mineral oil; electrical conductivity; iron micro-particles; magnetic field;
D O I
10.1016/j.physb.2005.09.046
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
The magnetorheological suspension (MRS) is based on mineral oil, stearic acid and iron micro-particles. The mean diameter of the iron micro-particles is 2.10 mu m. MRS becomes conductive only in magnetic field, starting from intensities of 72 kA/m. By means of all experimental installation, described in this paper, the MRS function of temperature is measured (300K <= T <= 400K) for intensities of the longitudinal magnetic field of 72, 112, 148 and 175 kA/m. From measurements of electrical resistance the electrical conductivity of MRS is determined, and the results obtained are discussed. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码:145 / 148
页数:4
相关论文
共 16 条
[1]   The gaint transverse magnetoresistance in a magnetorheological suspension with a conducting carrier [J].
Bednarek, S .
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1999, 202 (2-3) :574-582
[2]   The influence of the magnetic field on the electrical magneto resistance of magneto rheological suspensions [J].
Bica, I .
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2006, 299 (02) :412-418
[3]   Magnetorheological suspension electromagnetic brake [J].
Bica, I .
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2004, 270 (03) :321-326
[4]   The obtaining of magneto-rheological suspensions based on silicon oil and iron particles [J].
Bica, I .
MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY, 2003, 98 (02) :89-93
[5]   Damper with magnetorheological suspension [J].
Bica, I .
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2002, 241 (2-3) :196-200
[6]   Magnetorheological suspension based on mineral oil, iron and graphite micro-particles [J].
Bica, L .
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2004, 283 (2-3) :335-343
[7]   A METHOD FOR DETERMINING THE EFFECTIVE CONDUCTIVITY OF DISPERSIONS OF PARTICLES [J].
BONNECAZE, RT ;
BRADY, JF .
PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, 1990, 430 (1879) :285-313
[8]   Commercial magneto-rheological fluid devices [J].
Carlson, JD ;
Catanzarite, DM ;
StClair, KA .
INTERNATIONAL JOURNAL OF MODERN PHYSICS B, 1996, 10 (23-24) :2857-2865
[9]   The BARC biosensor applied to the detection of biological warfare agents [J].
Edelstein, RL ;
Tamanaha, CR ;
Sheehan, PE ;
Miller, MM ;
Baselt, DR ;
Whitman, LJ ;
Colton, RJ .
BIOSENSORS & BIOELECTRONICS, 2000, 14 (10-11) :805-813
[10]   Nanoparticles probe biosystems [J].
Gould, Paula .
MATERIALS TODAY, 2004, 7 (02) :36-43