An empirical constitutive law for concentrated colloidal suspensions in the approach of the glass transition

H. Henning Winter, Miriam Siebenbürger, David Hajnal, Oliver Henrich, Matthias Fuchs, Matthias Ballauff

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Concentrated, non-crystallizing colloidal suspensions in their approach of the glass state exhibit distinct dynamics patterns. These patterns suggest a powerlaw rheological constitutive model for nearglass viscoelasticity, as presented here. The rheological parameters used for this model originate in the mode-coupling theory. The proposed constitutive model provides explicit expressions for the steady shear viscosity, the steady normal stress coefficient, the modulus-compliance relation, and the α peak of G″. The relaxation pattern distinctly differs from gelation.

Original languageEnglish
Pages (from-to)747-753
Number of pages7
JournalRheologica Acta
Issue number7
Early online date29 Jul 2009
Publication statusPublished - 31 Aug 2009


  • BSW spectrum
  • colloidal glass
  • glass transition
  • linear viscoelasticity
  • mode-coupling theory
  • near-glass dynamics

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