期刊
JOURNAL OF CHEMICAL PHYSICS
卷 139, 期 2, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4812838
关键词
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资金
- Department of Atomic Energy - Science Research Council (DAE-SRC)
Physical properties of out of equilibrium soft materials depend on time as well as deformation history. In this work we propose to transform this major shortcoming into gain by applying controlled deformation field to tailor the rheological properties. We take advantage of the fact that deformation field of a certain magnitude can prevent particles in an aging soft glassy material from occupying energy wells up to a certain depth, thereby populating only the deeper wells. We employ two soft glassy materials with dissimilar microstructures and demonstrate that increase in strength of deformation field while aging leads to narrowing of spectrum of relaxation times. We believe that, in principle, this philosophy can be universally applied to different kinds of glassy materials by changing nature and strength of impetus. (C) 2013 AIP Publishing LLC.
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