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Please use this identifier to cite or link to this item: http://hdl.handle.net/10373/194

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Title: 3D bulk measurements of the force distribution in a compressed emulsion system
Authors: Brujic, Jasna
Edwards, Sam F.
Grinev, Dmitri V.
Hopkinson, Ian
Brujic, Djordje
Makse, Hernán A.
Affiliation: University of Abertay Dundee. School of Contemporary Sciences
Keywords: Emulsions
Issue Date: 2003
Publisher: Royal Society of Chemistry
Type: Journal Article
Refereed: peer-reviewed
Rights: Published version (c)Royal Society of Chemistry, available from DOI: 10.1039/b204414e
Citation: Brujic, J., et al. 2003. 3D bulk measurements of the force distribution in a compressed emulsion system. Faraday Discussion. 2003(123): pp:207-220. [Online] Available from: DOI: 10.1039/b204414e
Abstract: In particulate materials, such as emulsions and granular media, a jammed system results if particles are packed together so that all particles are touching their neighbours, provided the density is sufficiently high. This paper studies through experiment, theory and simulation, the forces that particles exert upon one another in such a jammed state. Confocal microscopy of a compressed polydisperse emulsion provides a direct 3D measurement of the dispersed phase morphology within the bulk of the sample. This allows the determination of the probability distribution of interdroplet forces, P(f) where f is the magnitude of the force, from local droplet deformations. In parallel, the simplest form of the Boltzmann equation for the probability of force distributions predicts P(f) to be of the form e–f/p, where p is proportional to the mean force for large forces. This result is in good agreement with experimental and simulated data.
URI: http://hdl.handle.net/10373/194
ISSN: 1359-6640
Appears in Collections:Science Engineering & Technology Collection

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