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research article
Routes to colloidal gel formation
We discuss features of simple inter-particle potentials which are able to generate low-packing fraction arrested states, i.e. gels, in the absence of a macroscopic phase separation phenomenon. We suggest that the ratio between surface and bulk free energy is crucial in favoring ideal gel states. Two possible models for gels, one based on the competition of short range attraction and long range repulsions and the other on local constraints disfavoring packed local structures are discussed. © 2005 Elsevier B.V. All rights reserved.
Type
research article
Scopus ID
2-s2.0-21244455204
Publication date
2005
Published in
Volume
169
Issue
1-3
Start page
166
End page
171
Peer reviewed
REVIEWED
EPFL units
Available on Infoscience
January 27, 2010
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