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Proceedings Paper

Rheological behavior of magneto-rheological grease (MRG)
Author(s): Huseyin Sahin; Faramarz Gordaninejad; Xiaoije Wang; Alan Fuchs
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Paper Abstract

This paper presents an experimental study on the rheological properties of a magneto-rheological (MR) grease. MR fluids and MR greases are materials which consist of micron-size ferrous particles suspended in a carrier fluid. Their material properties such as apparent viscosity and shear stress can be altered dramatically and reversibly when stimulated by a magnetic field. The main difference between a MRG and a MR fluid is the viscosity of the carrier fluid. Unlike MR fluids, MRGs do not have the particle settling issue. The steady-shear magneto-rheological response of MRGs with at different temperatures is investigated. The results of apparent viscosity and yield stress under different applied magnetic fields are reported. In addition, the wall surface effect on the flow behavior of MRGs under different applied magnetic fields is examined using a slit channel flow device.

Paper Details

Date Published: 27 April 2007
PDF: 9 pages
Proc. SPIE 6525, Active and Passive Smart Structures and Integrated Systems 2007, 65250D (27 April 2007); doi: 10.1117/12.717714
Show Author Affiliations
Huseyin Sahin, Univ. of Nevada, Reno (United States)
Faramarz Gordaninejad, Univ. of Nevada, Reno (United States)
Xiaoije Wang, Univ. of Nevada, Reno (United States)
Alan Fuchs, Univ. of Nevada, Reno (United States)


Published in SPIE Proceedings Vol. 6525:
Active and Passive Smart Structures and Integrated Systems 2007
Yuji Matsuzaki; Mehdi Ahmadian; Donald J. Leo, Editor(s)

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