Schematic mode coupling theories for shear thinning, shear thickening, and jamming

M. E. Cates, C. B. Holmes, M. Fuchs, O. Henrich

Research output: Chapter in Book/Report/Conference proceedingChapter

6 Citations (Scopus)

Abstract

Mode coupling theory (MCT) explains several aspects of the glass transition in colloids. Developments of MCT, from rational foundations in statistical mechanics, account qualitatively for nonlinear flow behavior such as the yield stress of a hard-sphere colloidal glass. Such theories only predict shear-thinning behavior, whereas in real colloids, both shear thinning and shear thickening can be found. The latter observation can, however, be rationalized by postulating an MCT vertex that is not only a decreasing function of strain rate but also an increasing function of stress. Within a highly simplified, schematic MCT model this can lead not only to discontinuous shear thickening but also to complete arrest of a fluid phase under the influence of an external stress.

Original languageEnglish
Title of host publicationUnifying Concepts in Granular Media and Glasses
EditorsAntonio Coniglio, Annalisa Fierro, Hans J. Herrmann, Mario Nicodemi
Place of PublicationAmsterdam
Pages203-216
Number of pages14
DOIs
Publication statusPublished - 30 Jun 2004
Externally publishedYes

Keywords

  • mode coupling theory (MCT)
  • flow behaviour
  • colloids
  • shear thinning
  • shear thickening

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    Cates, M. E., Holmes, C. B., Fuchs, M., & Henrich, O. (2004). Schematic mode coupling theories for shear thinning, shear thickening, and jamming. In A. Coniglio, A. Fierro, H. J. Herrmann, & M. Nicodemi (Eds.), Unifying Concepts in Granular Media and Glasses (pp. 203-216). Amsterdam. https://doi.org/10.1016/B978-044451607-7/50017-0