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Sheared Suspensions II - Depletion Aggregation

Published online by Cambridge University Press:  25 February 2011

J. R. Melrose
J. R. Melrose*
Affiliation:
DEPARTMENT OF CHEMISTRY, UNIVERSITY OF SURREY, GUILDFORD GU2 5XH, UNITED KINGDOM
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Abstract

A Brownian dynamics algorithm described in the companion paper [1] is used to simulate sheared suspensions of particles interacting via a depletion potential. The shear and interaction forces interplay to give a complex non-equilibrium phase diagram: a variety of shear induced agglomerates form at low shear rate, but, for shear rates above a non-equilibrium phase boundary the agglomerates develop interfaces predominantly orientated parallel to the plane of shear gradient and flow.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 248: Symposium O – Complex Fluids , 1991 , 281
Copyright
Copyright © Materials Research Society 1992

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References

[1] Melrose, J. R. ibidGoogle Scholar
[2] Patel, P. D. and Russel, W. B. Colloids and Surfaces 31 (1988) 355, following discussions and refs. therein.Google Scholar
[3] Heyes, D. M., Mckenzie, D. J. and Buscall, R. Jol. Coil. & Int. Sci. 142 (1991) 303, and refs. therein..Google Scholar
[4] Asakura, S. and Oosawa, F. J. Chem. Phys. 22 (1954) 1255; J. Polym. Sci. 33 (1958) 183Google Scholar
[5] Gast, A. P., Hall, C. K. and Faraday, W. B. Russel Discuss. Chem. Soc. 76 (1983) 189 CrossRefGoogle Scholar
[6] Melrose, J. R. in preparationGoogle Scholar