Projects per year
Abstract
Yielding behavior is well known in attractive colloidal suspensions. Adhesive non-Brownian suspensions, in which the interparticle bonds are due to finite-size contacts, also show yielding behavior. We use a combination of steady-state, oscillatory and shear-reversal rheology to probe the physical origins of yielding in the latter class of materials, and find that yielding is not simply a matter of breaking adhesive bonds, but involves unjamming from a shear-jammed state in which the micro-structure has adapted to the direction of the applied load. Comparison with a recent constraint-based rheology model shows the importance of friction in determining the yield stress, suggesting novel ways to tune the flow of such suspensions.
Original language | English |
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Number of pages | 8 |
Journal | Journal of rheology |
Volume | 64 |
Issue number | 2 |
DOIs | |
Publication status | Published - 5 Mar 2020 |
Keywords / Materials (for Non-textual outputs)
- cond-mat.soft
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Dive into the research topics of 'The role of friction in the yielding of adhesive non-Brownian suspensions'. Together they form a unique fingerprint.Projects
- 1 Finished
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Predictive formulation of high-solid-content complex dispersions
Poon, W. (Principal Investigator)
1/09/16 → 24/07/20
Project: Research