Difference between revisions of "Structural rearrangements that govern flow in colloidal glasses"

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(Structural rearrangements that govern flow in colloidal glasses)
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Peter Schall, David A. Weitz, Frans Spaepen
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Science 318, 1895 (2007)
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==Soft Matter Keywords==
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Colloid, Glass
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==Soft Matter Example==
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==Overview==
 
==Overview==
  
 
==Experiment==
 
==Experiment==
 
The authors created a glass out of silica spheres <math>1.5 \mu m</math> radius spheres. The spheres were collected on a coverslip by centrifrugation at a packing faction of 0.61, which is higher than needed to created a glass and at a height of <math>42 \mu m</math>.  A water-dimethylsulfoxide-fluorescein mixture was used to index match the spheres and then to contrast the spheres against the solvent. Then with the top stabilized, the coverslip at the bottom is sheared at rates about <math>10^{-5}s^{-1}</math>. The authors then recorded 3 Dimensional stacks usinb g
 
The authors created a glass out of silica spheres <math>1.5 \mu m</math> radius spheres. The spheres were collected on a coverslip by centrifrugation at a packing faction of 0.61, which is higher than needed to created a glass and at a height of <math>42 \mu m</math>.  A water-dimethylsulfoxide-fluorescein mixture was used to index match the spheres and then to contrast the spheres against the solvent. Then with the top stabilized, the coverslip at the bottom is sheared at rates about <math>10^{-5}s^{-1}</math>. The authors then recorded 3 Dimensional stacks usinb g

Revision as of 16:11, 23 February 2009

Peter Schall, David A. Weitz, Frans Spaepen Science 318, 1895 (2007)

Soft Matter Keywords

Colloid, Glass

Soft Matter Example

Overview

Experiment

The authors created a glass out of silica spheres <math>1.5 \mu m</math> radius spheres. The spheres were collected on a coverslip by centrifrugation at a packing faction of 0.61, which is higher than needed to created a glass and at a height of <math>42 \mu m</math>. A water-dimethylsulfoxide-fluorescein mixture was used to index match the spheres and then to contrast the spheres against the solvent. Then with the top stabilized, the coverslip at the bottom is sheared at rates about <math>10^{-5}s^{-1}</math>. The authors then recorded 3 Dimensional stacks usinb g