Projects per year
Abstract
We show that mixing a colloidal gel with larger, non-Brownian grains generates novel flow-switched bistability. Using a combination of confocal microscopy and rheology, we find that prolonged moderate shear results in liquefaction by collapsing the gel into disjoint globules, whereas fast shear gives rise to a yield-stress gel with granular inclusions upon flow cessation. We map out the state diagram of this new `mechanorheological material' with varying granular content and demonstrate that its behavior is also found in separate mixture using different particles and solvents.
Original language | English |
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Article number | 248002 |
Pages (from-to) | 1-5 |
Number of pages | 5 |
Journal | Physical Review Letters |
Volume | 128 |
Issue number | 24 |
Early online date | 16 Jun 2022 |
DOIs | |
Publication status | Published - 17 Jun 2022 |
Keywords / Materials (for Non-textual outputs)
- cond-mat.soft
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Dive into the research topics of 'Flow-Switched Bistability in a Colloidal Gel with Non-Brownian Grains'. Together they form a unique fingerprint.Projects
- 2 Finished
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EPSRC ICase PHD ct-4854
Poon, W. (Principal Investigator)
UK industry, commerce and public corporations
1/10/17 → 30/09/21
Project: Research
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Predictive formulation of high-solid-content complex dispersions
Poon, W. (Principal Investigator)
1/09/16 → 24/07/20
Project: Research