FORMATION AND GROWTH OF CLUSTERS IN COLLOIDAL SUSPENSIONS

Martin Hecht (), Jens Harting () and Hans J. Herrmann ()
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Martin Hecht: Institute for Computational Physics, Pfaffenwaldring 27, D-70569 Stuttgart, Germany
Jens Harting: Institute for Computational Physics, Pfaffenwaldring 27, D-70569 Stuttgart, Germany
Hans J. Herrmann: Computational Physics, IFB, Schafmattstr. 6, ETH Zürich, CH-8093 Zürich, Switzerland

International Journal of Modern Physics C (IJMPC), 2007, vol. 18, issue 04, 501-510

Abstract: Depending on thepH-value and salt concentration ofAl2O3suspensions different microstructures can form. Especially the clustered one is of major interest for industrial purposes as found in the production of ceramics. In this paper we investigate the clustered microstructure by means of a coupled Stochastic Rotation Dynamics (SRD) and Molecular Dynamics (MD) simulation. In order to gain statistics within a system containing numerous clusters, large simulation volumes are needed. We present our parallel implementation of the simulation algorithm as well as a newly developed cluster detection and tracking algorithm. We then show first results of measured growth rates and cluster size distributions to validate the applicability of our method.

Keywords: Stochastic Rotation Dynamics; Molecular Dynamics; colloids; clustering; 82.70.-y; 47.11.+j; 02.70.Ns (search for similar items in EconPapers)
Date: 2007
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DOI: 10.1142/S0129183107010735

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