Mixing and Condensation in a Wet Granular Medium

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Geromichalos, Dimitrios and Kohonen, Mika M. and Mugele, Frieder and Herminghaus, Stephan (2003) Mixing and Condensation in a Wet Granular Medium. Physical Review Letters, 90 (16). ISSN 0031-9007

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Abstract:We have studied the effect of small amounts of added liquid on the dynamic behavior of a granular system consisting of a mixture of glass beads of two different sizes. Segregation of the large beads to the top of the sample is found to depend in a nontrivial way on the liquid content. A transition to viscoplastic behavior occurs at a critical liquid content, which depends upon the bead size. We show that this transition can be interpreted as a condensation due to the hysteretic liquid bridge forces connecting the beads, and we provide the corresponding phase diagram.
Item Type:Article
Copyright:© 2003 The American Physical Society
Link to this item:http://purl.utwente.nl/publications/57252
Official URL:http://dx.doi.org/10.1103/PhysRevLett.90.168702
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