dc.creator | Chen, Yuhua | |
dc.creator | Sánchez Quintanilla, Miguel Angel | |
dc.creator | Yang, Jun | |
dc.creator | Valverde Millán, José Manuel | |
dc.creator | Dave, Rajesh N. | |
dc.date.accessioned | 2015-07-16T10:38:46Z | |
dc.date.available | 2015-07-16T10:38:46Z | |
dc.date.issued | 2009 | |
dc.identifier.issn | 1539-3755 | es |
dc.identifier.issn | 1550-2376 | es |
dc.identifier.uri | http://hdl.handle.net/11441/26923 | |
dc.description.abstract | In this paper, a three-dimensional model taking into account the contact deformation and surface area coverage (SAC) of nanoadditives is proposed to predict the force required to separate two contacting particles (the pull-off force) under consolidation stress up to 10 KPa, for cornstarch, a Geldart group C powder, sparsely and densely dry-coated with nanosilica. The experimental pull-off force measurement is conducted in a Seville powder tester. Comparison of the predicted results with the experimental results indicates (1) that the pull-off force of sparsely coated cornstarch is larger than that of densely coated cornstarch due to the greater hardness and small particle radius of fumed silica; (2) there is not a continuous variation in the pull-off force with the coverage of silica; on the contrary, values of the pull-off force of sparsely coated samples are grouped in similar range, while the values of the pull-off force of densely coated samples are grouped in another range of lower values.(3) Within a range, the SAC does not have a big effect on the pull-off force for sparsely coated samples and only a slight effect for densely coated samples (4) the pull-off force increases with increasing consolidation force due to larger deformation in the contact area; (5) under consolidation stresses up to 10 KPa, the deformation of the cornstarch particles is not large enough to fully embed the nanosized silica. | es |
dc.format | application/pdf | es |
dc.language.iso | eng | es |
dc.publisher | American Physical Society | es |
dc.relation.ispartof | Physical review E. Statistical, nonlinear, and soft matter physics, 79, 4, 041305-1-041305-14 | es |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 Internacional | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
dc.title | Pull-off force of coated fine powders under small consolidation | es |
dc.type | info:eu-repo/semantics/article | es |
dcterms.identifier | https://ror.org/03yxnpp24 | |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | es |
dc.contributor.affiliation | Universidad de Sevilla. Departamento de Electrónica y Electromagnetismo | es |
dc.relation.publisherversion | http://dx.doi.org/10.1103/PhysRevE.79.041305 | es |
dc.relation.publisherversion | http://dx.doi.org/10.1103/PhysRevE.79.041305 | |
dc.identifier.doi | 10.1103/PhysRevE.79.041305 | |
dc.identifier.idus | https://idus.us.es/xmlui/handle/11441/26923 | |