Back to Search
Start Over
Experimental signatures of a nonequilibrium phase transition governing the yielding of a soft glass.
- Source :
-
Physical review. E, Statistical, nonlinear, and soft matter physics [Phys Rev E Stat Nonlin Soft Matter Phys] 2014 Jun; Vol. 89 (6), pp. 062308. Date of Electronic Publication: 2014 Jun 17. - Publication Year :
- 2014
-
Abstract
- We present direct experimental signatures of a nonequilibrium phase transition associated with the yield point of a prototypical soft solid-a binary colloidal glass. By simultaneously quantifying single-particle dynamics and bulk mechanical response, we identified the threshold for the onset of irreversibility with the yield strain. We extracted the relaxation time from the transient behavior of the loss modulus and found that it diverges in the vicinity of the yield strain. This critical slowing down is accompanied by a growing correlation length associated with the size of regions of high Debye-Waller factor, which are precursors to yield events in glasses. Our results affirm that the paradigm of nonequilibrium critical phenomena is instrumental in achieving a holistic understanding of yielding in soft solids.
Details
- Language :
- English
- ISSN :
- 1550-2376
- Volume :
- 89
- Issue :
- 6
- Database :
- MEDLINE
- Journal :
- Physical review. E, Statistical, nonlinear, and soft matter physics
- Publication Type :
- Academic Journal
- Accession number :
- 25019777
- Full Text :
- https://doi.org/10.1103/PhysRevE.89.062308