Chung, B. ; Ramakrishnan, S. ; Bandyopadhyay, R. ; Liang, D. ; Zukoski, C. F. ; Harden, J. L. ; Leheny, R. L. (2006) Microscopic dynamics of recovery in sheared depletion gels Physical Review Letters, 96 (22). ISSN 0031-9007
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Official URL: https://doi.org/https://doi.org/10.1103/PhysRevLet...
Related URL: http://dx.doi.org/https://doi.org/10.1103/PhysRevLett.96.228301
Abstract
We report x-ray photon correlation spectroscopy and diffusing wave spectroscopy studies of depletion gels formed from nanoscale silica colloids in solutions of nonabsorbing polymer following the cessation of shear. The two techniques provide a quantitatively coherent picture of the dynamics as ballistic or convective motion of colloidal clusters whose internal motion is arrested. While the dynamics possesses features characteristic of nonergodic soft solids, including a relaxation time that grows linearly with the time since shear, comparison with behavior of quenched supercooled liquids indicates that this evolution is not directly related to traditional aging phenomena in glasses.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to American Physical Society. |
| ID Code: | 140641 |
| Deposited On: | 25 Oct 2025 00:35 |
| Last Modified: | 25 Oct 2025 00:35 |
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