Projects per year
Abstract / Description of output
We investigate the 3D structure and drying dynamics of complex mixtures of emulsion droplets and colloidal particles, using confocal microscopy. Air invades and rapidly collapses large emulsion droplets, forcing their contents into the surrounding porous particle pack at a rate proportional to the square of the droplet radius. By contrast, small droplets do not collapse, but remain intact and are merely deformed. A simple model coupling the Laplace pressure to Darcy's law correctly estimates both the threshold radius separating these two behaviors, and the rate of large-droplet evacuation. Finally, we use these systems to make novel hierarchical structures.
Original language | English |
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Article number | 128303 |
Pages (from-to) | - |
Number of pages | 4 |
Journal | Physical Review Letters |
Volume | 104 |
Issue number | 12 |
DOIs | |
Publication status | Published - 26 Mar 2010 |
Keywords / Materials (for Non-textual outputs)
- PARTICLES
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Dive into the research topics of 'Drying of Complex Suspensions'. Together they form a unique fingerprint.Projects
- 1 Finished
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Edinbugrh Soft Matter and Statistical Physics Programme Grant Renewal
Cates, M., Poon, W., Ackland, G., Clegg, P., Evans, M., MacPhee, C. & Marenduzzo, D.
1/10/07 → 31/03/12
Project: Research