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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  and
Judy Odinek
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
Information
MRS Online Proceedings Library (OPL) , Volume 366: Symposium N – Dynamics in Small Confining Systems , 1994 , 155
Copyright
Copyright © Materials Research Society 1995

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References

1. Block, H. and Kelly, J.P., J. Phys. D: Appl. Phys. 21, 1661 (1988).Google Scholar
2. Gast, A.P. and Zukoski, C.F., Adv. Coll. Inter. Sci. 30, 153 (1988).Google Scholar
3. Martin, J.E., Odinek, J. and Halsey, T.C., Phys. Rev. Lett. 69, 1524 (1992).Google Scholar
4. Chen, T., Zitter, R.N. and Tao, R., Phys. Rev. Lett. 68, 2555 (1992).Google Scholar
5. Martin, J.E., Odinek, J. and Halsey, T.C., to appear in Phys. Rev. E.Google Scholar
6. Halsey, T.C., Martin, J.E. and Adolf, D., Phys. Rev. Lett. 68, 1519 (1992).Google Scholar
7. Martin, J.E., Adolf, D. and Halsey, T.C., J. Coll. Inter. Sci. 167, 437 (1994)Google Scholar
8. McLeish, T.C.B., Jordan, T., Shaw, M.T., J Rheol. 35, 427 (1991); T. Jordan, M. T. Shaw, and T.C.B. Mcleish J. Rheol. 36, 441 (1992).Google Scholar
9. Balancing the force along the chain gives a chain shape that resembles an arcsine; Linearity avoids a dynamical system of 2N+1 coupled nonlinear equations.Google Scholar
10. A similar result is obtained from the droplet model in Ref 6.Google Scholar
11. Klingenberg, D.J. and Zukoski, C.F., Langmuir 6, 15–24 (1990).Google Scholar
12. See, H. and Doi, M., J. Phys. Soc. Jpn. 60, 2778 (1991).Google Scholar
13. Analogous to the Stress-Optical Theorem, which relates birefringence to stress.Google Scholar