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Structural Transitions induced by Colloidal Interactions in Ceramic Dispersions

Published online by Cambridge University Press:  21 February 2011

Raj Rajagopalan
Raj Rajagopalan*
Affiliation:
Department of Chemical Engineering, University of Houston, Houston, Texas 77204-4792
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Abstract

A discussion of the formation of periodic colloid structures, liquid-like ordering, and compact and fractal aggregates caused by colloidal forces in ceramic dispersions is presented. Construction of phase diagrams based on simple forms of repulsive potentials is often not adequate, and it is important to include appropriate attractive interactions in the theoretical analyses. Examples of radial distribution functions, osmotic prsueadphase diagrams are given for dispersions interacting through Derjaguin-Landau-Verwey-Overbeek potentials. Densification of colloidal aggregates dlue to positional relaxation and the effects of such densification on the structure of the aggregates are discussed.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 155: Symposium L – Processing Science of Advanced Ceramics , 1989 , 53
Copyright
Copyright © Materials Research Society 1989

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References

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