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Light Scattering Studies of an Electrorheological Fluid in Oscillatory Shear

Published online by Cambridge University Press:  15 February 2011

James E. Martin
Affiliation:
Advanced Materials Physics Division, Sandia National Laboratories, Albuquerque, New Mexico 87185-0345
Judy Odinek
Affiliation:
Advanced Materials Physics Division, Sandia National Laboratories, Albuquerque, New Mexico 87185-0345
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Abstract

We have conducted a real time, two-dimensional light scattering study of the nonlinear dynamics of field-induced structures in an electrorheological fluid subjected to oscillatory shear. We have developed a theoretical description of the observed dynamics by considering the response of a fragmenting/aggregating particle chain to the prevailing hydrodynamic and electrostatic forces. This structural theory is then used to describe the nonlinear rheology of ER fluids.

Type
Research Article
Copyright
Copyright © Materials Research Society 1995

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