Journal
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
Volume 15, Issue 4, Pages 573-577Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.jiec.2009.01.015
Keywords
Magnetorheological suspensions (MRSs); Magnetoresistor; Electro-conductivity; Friction coefficient; Magnetic field
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Iron carbonyl is decomposed, at the temperature of 473 K +/- 10%, into a liquid matrix formed of silicone oil and stearic acid. For 3.703% and 1.886% stearic acid, magneto theological suspensions (MRSs) are obtained. The iron particles in MRSs have the mean diameter of 0.356 mu m. Magnetoresistors are achieved from MRSs with the dimensions of diameter and length equal to 5 mm. In longitudinal magnetic field, the resistance of the magnetoresistors is measured. Assimilating the resistance of the magnetoresistors with that of a linear resistor, the conductivity or of MRS is determined. The duration t(c) of onset of or is determined. It is observed that t(c) is considerably influenced by the intensity of the magnetic field applied and by the composition of MRSs. Experimental data are discussed, too. (C) 2009 The Korean Society of industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
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