Jump to main content
Jump to site search

Volume 158, 2012
Previous Article Next Article

The role of quench rate in colloidal gels

Author affiliations

Abstract

Interactions between colloidal particles have hitherto usually been fixed by the suspension composition. Recent experimental developments now enable the control of interactions in situ. Here we use Brownian dynamics simulations to investigate the effect of controlling interactions upon gelation, by “quenching” the system from an equilibrium fluid to a gel. We find that, contrary to the normal case of an instantaneous quench, where the local structure of the gel is highly disordered, controlled quenching results in a gel with a much higher degree of local order. Under sufficiently slow quenching, local crystallisation is found, which is strongly enhanced when a monodisperse system is used. The higher the degree of local order, the smaller the mean squared displacement, indicating an enhancement of gel stability.

Back to tab navigation

Publication details

The article was received on 01 Mar 2012, accepted on 04 May 2012 and first published on 04 May 2012


Article type: Paper
DOI: 10.1039/C2FD20041D
Citation: Faraday Discuss., 2012,158, 301-311
  •   Request permissions

    The role of quench rate in colloidal gels

    C. P. Royall and A. Malins, Faraday Discuss., 2012, 158, 301
    DOI: 10.1039/C2FD20041D

Search articles by author

Spotlight

Advertisements