Aging in a Colloidal Glass in Creep Flow: Time-Stress Superposition

Details Aging in a Colloidal Glass in Creep Flow: Time-Stress Superposition Aging in a Colloidal Glass in Creep Flow: Time-Stress Superposition

2007-10-28

arxiv.org/abs/0710.5264v2

Physical Review E 77, 021501 (2008)

Physics

Condensed Matter

Soft Condensed Matter

10 pages, 4 figures

Scientific paper

10.1103/PhysRevE.77.021501

In this work, we study ageing behavior of aqueous laponite suspension, a model soft glassy material, in creep. We observe that viscoelastic behavior is time dependent and is strongly influenced by the deformation field; the effect is known to arise due to ageing and rejuvenation. We show that irrespective of strength of deformation field (shear stress) and age, when imposed time-scale is normalized with dominating relaxation mode of the system, universal ageing behavior is obtained demonstrating time-stress superposition; the phenomena that may be generic in variety of soft materials.

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