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Issue 6, 2002
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Abstract

In this study the interactions between an atomic force microscope (AFM) tip and a sapphire surface are investigated in the presence and absence of a dispersant, Aluminon, and a binder, poly(vinyl alcohol) (PVA). The results showed that attractive interactions are noted in the absence of the dispersant, but that these interactions become repulsive in its presence. Upon addition of binder to the system a weaker attractive interaction, which is preceded by a smaller repulsive interaction, is noted. The results of the AFM work are also compared to rheological studies that have been carried out on alumina dispersions stabilised by the aforementioned materials.

Graphical abstract: The strength of colloidal interactions in the presence of ceramic dispersants and binders

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Article information


Submitted
29 Oct 2001
Accepted
05 Mar 2002
First published
29 Apr 2002

J. Mater. Chem., 2002,12, 1743-1747
Article type
Paper

The strength of colloidal interactions in the presence of ceramic dispersants and binders

A. U. Khan, P. F. Luckham, S. Manimaaran and M. Rivenet, J. Mater. Chem., 2002, 12, 1743
DOI: 10.1039/B109818G

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