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Shear thickening in suspensions as modeled on different length scales

  • J. Laven
  • , J. Kaldasch

    Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

    Abstract

    A theory is presented for the rheology of dense, electrically stabilized, colloidal suspensions under shear. It is based on a combination of an activation model (microsocopic scale) and a Landau theory (mesoscopic scale). Shear thickening is described here as a structural transition induced by an electroviscous effect in concentrated suspensions. A set of phenomenological equations are established that describe the shear-rate dependent viscosity. The results will be compared to experimental investigations on monodisperse and polydisperse suspensions of different volume fractions. A good agreement between theory and experimental results can be obtained.
    Original languageEnglish
    Title of host publicationProceedings of the XIVth International Congress on Rheology, Seoul, Korea, August 22-27, 2004
    EditorsKin-Jun Lee
    Place of PublicationSeoul, Korea
    PublisherKorean Society of Rheology
    PagesSU09:1-3
    Publication statusPublished - 2004
    Eventconference; The XIVth International Congress on Rheology; 2004-08-22; 2004-08-27 -
    Duration: 22 Aug 200427 Aug 2004

    Conference

    Conferenceconference; The XIVth International Congress on Rheology; 2004-08-22; 2004-08-27
    Period22/08/0427/08/04
    OtherThe XIVth International Congress on Rheology

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