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Issue 7, 2010
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Stress relaxation in aging soft colloidal glasses

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Abstract

We investigate the stress relaxation behavior on the application of step strains to aging aqueous suspensions of the synthetic clay Laponite. The stress exhibits a two-step decay, from which the slow relaxation modes are extracted as functions of the sample ages and applied step strain deformations. Interestingly, the slow time scales that we estimate show a dramatic enhancement with increasing strain amplitudes. We argue that the system ends up exploring the deeper sections of its energy landscape following the application of the step strain.

Graphical abstract: Stress relaxation in aging soft colloidal glasses

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Publication details

The article was received on 07 Aug 2009, accepted on 05 Jan 2010 and first published on 09 Feb 2010


Article type: Paper
DOI: 10.1039/B916342E
Citation: Soft Matter, 2010,6, 1462-1466
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    Stress relaxation in aging soft colloidal glasses

    R. Bandyopadhyay, P. H. Mohan and Y. M. Joshi, Soft Matter, 2010, 6, 1462
    DOI: 10.1039/B916342E

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