| Shear banding in thixotropic and normal emulsions. | |
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MedLine Citation:
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PMID: 21709327 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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When made to flow, yield stress materials rarely flow homogeneously. This is mostly attributed to the fact that such materials show a transition from a solid- to a liquid-like state when the stress exceeds some critical value: the yield stress. Thus, if the stress is heterogeneous, so is the flow. Here we consider emulsion flows in a cone-plate geometry that, for Newtonian fluids, correspond to a homogeneous stress situation and show that shear banding can also be observed either due to wall slip or to the existence of a critical shear rate. By means of velocity profiles obtained using a confocal laser scanning microscope combined with a rheometer we conclude that the last type of shear banding occurs only in thixotropic yield stress materials. |
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Authors:
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José Paredes; Noushine Shahidzadeh-Bonn; Daniel Bonn |
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Publication Detail:
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Type: Journal Article Date: 2011-06-27 |
Journal Detail:
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Title: Journal of physics. Condensed matter : an Institute of Physics journal Volume: 23 ISSN: 1361-648X ISO Abbreviation: J Phys Condens Matter Publication Date: 2011 Jul |
Date Detail:
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Created Date: 2011-06-28 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101165248 Medline TA: J Phys Condens Matter Country: England |
Other Details:
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Languages: eng Pagination: 284116 Citation Subset: IM |
Affiliation:
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Van der Waals-Zeeman Institute, University of Amsterdam, Science Park 904, 1098XH Amsterdam, The Netherlands. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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