Edinburgh Research Explorer

Yielding of colloidal glasses

Research output: Contribution to journalArticle

  • K. N. Pham
  • G. Petekidis
  • D. Vlassopoulos
  • S. U. Egelhaaf
  • P. N. Pusey
  • Wilson Poon

Related Edinburgh Organisations

Original languageEnglish
Pages (from-to)624-630
Number of pages7
JournalEurophysics Letters
Volume75
Issue number4
DOIs
StatePublished - Aug 2006

Abstract

We studied yielding in two kinds of colloidal glasses: hard spheres at high concentrations without and with a short-range interparticle attraction induced by adding non-adsorbing polymer. Our oscillatory shear and step strain measurements reveal single and two-step yielding in these two kinds of glasses, respectively. This finding is interpreted in terms of a simple picture: the breaking of local topological constraints (cages) and the breaking of nearest-neighbour bonds.

    Research areas

  • PHASE-BEHAVIOR, FLOW, TRANSITION, SCATTERING, SUSPENSIONS, MIXTURES, RHEOLOGY, DYNAMICS, SYSTEM, MODEL

ID: 1488966