Preferred orientation in filtercakes of kaolinite

Perdigon-Aller, A. C. and Aston, M. and Clarke, S. M. (2005) Preferred orientation in filtercakes of kaolinite. Journal of Colloid and Interface Science, 290 (1). pp. 155-165. DOI 10.1016/j.jcis.2005.04.038

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Abstract

The orientational order parameter of dense colloidal dispersions of plate-like particles as a function of volume fraction is measured using neutron diffraction. This non-invasive experimental approach directly provides the full particle orientation distribution from which the order parameters can be calculated. The orientation parameters are shown to be linked to the solids fractions of the cakes and the macroscopic permeability of the samples. However, this study suggests that, although orientation can be relevant for a given system, other factors can have a stronger influence, for example, the degree of dispersion or colloidal stability of the clay and may be the principle factor that controls permeability. In addition, we report enhanced ordering of these materials under the influence of an external cross-flow field.

Item Type: Article
Uncontrolled Keywords: 2005 AREP 2005 P IA49 BPI
Subjects: 03 - Mineral Sciences
Divisions: 03 - Mineral Sciences
Journal or Publication Title: Journal of Colloid and Interface Science
Volume: 290
Page Range: pp. 155-165
Identification Number: 10.1016/j.jcis.2005.04.038
Depositing User: Sarah Humbert
Date Deposited: 11 Nov 2010 17:10
Last Modified: 23 Jul 2013 09:59
URI: http://eprints.esc.cam.ac.uk/id/eprint/1771

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