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Depositordc.contributorRichards, James A
Funderdc.contributor.otherEPSRC - Engineering and Physical Sciences Research Councilen_UK
Data Creatordc.creatorRichards, James A
Data Creatordc.creatorO'Neill, Rory E
Data Creatordc.creatorPoon, Wilson CK
Date Accessioneddc.date.accessioned2020-07-10T12:05:09Z
Date Availabledc.date.available2020-07-10T12:05:09Z
Citationdc.identifier.citationRichards, James A; O'Neill, Rory E; Poon, Wilson CK. (2020). Turning a yield-stress calcite suspension into a shear-thickening one by tuning inter-particle friction, [dataset]. University of Edinburgh. School of Physics and Astronomy. Institute for Condensed Matter and Complex Systems. https://doi.org/10.7488/ds/2875.en
Persistent Identifierdc.identifier.urihttps://hdl.handle.net/10283/3695
Persistent Identifierdc.identifier.urihttps://doi.org/10.7488/ds/2875
Dataset Description (abstract)dc.description.abstractWe show that a suspension of non-Brownian calcite particles in glycerol-water mixtures can be tuned continuously from being a yield-stress suspension to a shear-thickening suspension without a measurable yield stress by the addition of various surfactants. We interpret our results within a recent theoretical framework that models the rheological effects of stress-dependent constraints on inter-particle motion. Bare calcite particle suspensions are found to have finite yield stresses. In these suspensions, frictional contacts that constrain inter-particle sliding form at an infinitesimal applied stress and remain thereafter, while adhesive bonds that constrain inter-particle rotation are broken as the applied stress increases. Adding surfactants reduces the yield stress of such suspensions. We show that, contrary to the case of surfactant added to colloidal suspensions, this effect in non-Brownian suspensions is attributable to the emergence of a finite onset stress for the formation of frictional contacts. Our data suggest that the magnitude of this onset stress is set by the strength of surfactant adsorption to the particle surfaces, which therefore constitutes a new design principle for using surfactants to tune the rheology of formulations consisting of suspensions of adhesive non-Brownian particulates.en_UK
Dataset Description (TOC)dc.description.tableofcontentsData and plotting scripts for figures in "Turning a yield-stress calcite suspension into a shear-thickening one by tuning inter-particle friction". For details see documentation included, e.g., "about_Fig1.txt"en_UK
Languagedc.language.isoengen_UK
Publisherdc.publisherUniversity of Edinburgh. School of Physics and Astronomy. Institute for Condensed Matter and Complex Systemsen_UK
Relation (Is Referenced By)dc.relation.isreferencedbyhttps://arxiv.org/abs/2007.05433en_UK
Relation (Is Referenced By)dc.relation.isreferencedbyRichards JA, O'Neill, RE, Poon WCK "Turning a yield-stress calcite suspension into a shear-thickening one by tuning inter-particle friction" (2020) arXiv:2007.05433 [cond-mat.soft]
Rightsdc.rightsCreative Commons Attribution 4.0 International Public Licenseen
Subjectdc.subjectRheologyen_UK
Subjectdc.subjectJammingen_UK
Subjectdc.subjectShear thickeningen_UK
Subjectdc.subjectYield stressen_UK
Subjectdc.subjectSuspensionsen_UK
Subjectdc.subjectSurfactantsen_UK
Subject Classificationdc.subject.classificationPhysical Sciencesen_UK
Titledc.titleTurning a yield-stress calcite suspension into a shear-thickening one by tuning inter-particle frictionen_UK
Typedc.typedataseten_UK

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