Creep in colloidal glasses

Siebenbürger, Miriam; Ballauff, Matthias; Voigtmann, Thomas

Creep in colloidal glasses

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Date

2012

Authors

Siebenbürger, Miriam

Ballauff, Matthias

Voigtmann, Thomas

Publication type

Journal article

Published in

Physical Review Letters ; 108 (2012), 25. - ISSN 0031-9007

Abstract

We investigate the nonlinear response to shear stress of a colloidal hard-sphere glass, identifying several regimes depending on time, sample age, and the magnitude of applied stress. This emphasizes a connection between stress-imposed deformation of soft and hard matter, in particular, colloidal and metallic systems. A generalized Maxwell model rationalizes logarithmic creep for long times and low stresses. We identify diverging time scales approaching a critical yield stress. At intermediate times, strong aging effects are seen, which we link to a stress overshoot seen in stress-strain curves.

Subject (DDC)

530 Physics

Cite This

ISO 690

SIEBENBÜRGER, Miriam, Matthias BALLAUFF, Thomas VOIGTMANN, 2012. Creep in colloidal glasses. In: Physical Review Letters. 108(25). ISSN 0031-9007. Available under: doi: 10.1103/PhysRevLett.108.255701

BibTex

@article{Siebenburger2012Creep-19563,
  year={2012},
  doi={10.1103/PhysRevLett.108.255701},
  title={Creep in colloidal glasses},
  number={25},
  volume={108},
  issn={0031-9007},
  journal={Physical Review Letters},
  author={Siebenbürger, Miriam and Ballauff, Matthias and Voigtmann, Thomas}
}

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