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dc.contributor.authorJosé Luis, Amorós Albaro
dc.contributor.authorMallol Gasch, Gustavo
dc.contributor.authorFeliu Mingarro, Carlos
dc.contributor.authorOrts Tarí, María José
dc.date.accessioned2012-09-10T11:53:57Z
dc.date.available2012-09-10T11:53:57Z
dc.date.issued2011-09-15
dc.identifier.citationChemical Engineering Science (15 September 2011), vol. 66, no. 18, 4070–4077
dc.identifier.issn0009-2509
dc.identifier.urihttp://hdl.handle.net/10234/46476
dc.description.abstractA model is proposed that describes the yield locus of powders. The model is based on the adhesive contact of elastic spheres theory developed by Johnson, Kendall, and Roberts (JKR model). The proposed model improves the results by applying the Warren Spring Laboratory (WSL) equation and the Coulomb model. Only two parameters are needed in the present model to describe the yield locus of a powder: powder cohesion (C) and the coefficient of friction (μ) of the powder bed. The study verifies the validity of the new equation to describe the yield locus of different powders. The proposed model was used to calculate the cohesion and coefficient of friction of monomodal quartz particle beds with different average particle sizes. The study examines the influence of average particle size (ds) and bed compactness (ϕ) on these parameters. Cohesion was observed to increase by the sixth power of compactness and inverse of the particle Sauter diameter. The bed coefficient of friction increased asymptotically with bed compactness, this relationship depending on particle size.ca_CA
dc.format.extent8 p.ca_CA
dc.format.mimetypeapplication/pdfca_CA
dc.languageengca_CA
dc.language.isocatca_CA
dc.publisherElsevierca_CA
dc.rights© 2011 Elsevier B.V. All rights reservedca_CA
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/*
dc.subjectSolid mechanicsca_CA
dc.subjectFlowabilityca_CA
dc.subjectPowdersca_CA
dc.subjectRheologyca_CA
dc.subjectPowder technologyca_CA
dc.subjectPowder cohesionca_CA
dc.titleStudy of the rheological behaviour of monomodal quartz particle beds under stress: a model for the shear yield functions of powdersca_CA
dc.typeinfo:eu-repo/semantics/articleca_CA
dc.identifier.doihttp://dx.doi.org/10.1016/j.ces.2011.05.034
dc.rights.accessRightsinfo:eu-repo/semantics/restrictedAccessca_CA
dc.relation.publisherVersionhttp://www.sciencedirect.com/science/article/pii/S0009250911003435ca_CA


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