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29 March 2024
 
  » arxiv » 1311.1996

 Article overview


Length-scale dependent aging and plasticity of a colloidal polycrystal under cyclic shear
Elisa Tamborini ; Luca Cipelletti ; Laurence Ramos ;
Date 8 Nov 2013
AbstractWe investigate plasticity in a colloidal polycrystal by using confocal microscopy and time-resolved light scattering, following the evolution of the network of grain boundaries as the sample is submitted to a large number of shear deformation cycles. The dynamics associated with plasticity are found to be ballistic and to slow down until a steady state is reached after a large number of shear cycles. Surprisingly, the cross-over time between the initial aging regime and the steady state decreases with increasing probed length scale, hinting at a hierarchical organization of the grain boundary dynamics.
Source arXiv, 1311.1996
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