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

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

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.

LanguageEnglish
Pages747-753
Number of pages7
JournalRheologica Acta
Volume48
Issue number7
Early online date29 Jul 2009
DOIs
Publication statusPublished - 31 Aug 2009

Fingerprint

Constitutive models
colloids
Glass transition
Suspensions
Shear viscosity
glass
Viscoelasticity
Gelation
viscoelasticity
gelation
Glass
coupled modes
viscosity
shear
coefficients
Compliance

Keywords

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

Cite this

Henning Winter, H. ; Siebenbürger, Miriam ; Hajnal, David ; Henrich, Oliver ; Fuchs, Matthias ; Ballauff, Matthias. / An empirical constitutive law for concentrated colloidal suspensions in the approach of the glass transition. In: Rheologica Acta. 2009 ; Vol. 48, No. 7. pp. 747-753.
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An empirical constitutive law for concentrated colloidal suspensions in the approach of the glass transition. / Henning Winter, H.; Siebenbürger, Miriam; Hajnal, David; Henrich, Oliver; Fuchs, Matthias; Ballauff, Matthias.

In: Rheologica Acta, Vol. 48, No. 7, 31.08.2009, p. 747-753.

Research output: Contribution to journalArticle

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AU - Ballauff, Matthias

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KW - colloidal glass

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