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dc.contributor.authorSvačinová, Petra
dc.contributor.authorMacho, Oliver
dc.contributor.authorJarolímová, Žofie
dc.contributor.authorGabrišová, Ľudmila
dc.contributor.authorŠklubalová, Zdenka
dc.contributor.authorKuentz, Martin
dc.date.accessioned2022-10-12T10:43:09Z
dc.date.available2022-10-12T10:43:09Z
dc.date.issued2022
dc.identifier.issn0032-5910
dc.identifier.doi10.1016/j.powtec.2022.117729
dc.identifier.urihttps://irf.fhnw.ch/handle/11654/33943
dc.description.abstractConsolidation of powders by tapping is an important quality test but it is time and material consuming, which encourages the use of mathematical modelling. This article aims to study this gravitational consolidation dynamics by using nine binary mixtures consisting of cellets and powdered microcrystalline cellulose (MCC102), differing in size, shape, and consolidation properties. To describe the correlation between number of taps and powder bed density/ porosity, the modified Heckel equation. (MH) was newly introduced and compared to the models by Kawakita (KW) and Varthalis & Pilpel (VP). High coefficients of determination were observed by applying the traditional KW model up to 80% of cellets, while a comparable fitting adequacy was obtained with the MH equation up to 50% of cellets in the mixtures. An increased content of MCC102 increased fitting adequacy in the MH and KW model, whereas a nearly opposite mixture trend was observed for the VP model.en_US
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.relation.ispartofPowder Technologyen_US
dc.accessRightsAnonymous*
dc.subjectBinary mixturesen_US
dc.subjectConsolidation by gravityen_US
dc.subjectPorosityen_US
dc.subjectKawakita modelen_US
dc.subjectVarthalis & Pilpel modelen_US
dc.subjectModified Heckel modelen_US
dc.subject.ddc500 - Naturwissenschaftenen_US
dc.titleEvaluation of gravitational consolidation of binary powder mixtures by modified Heckel equationen_US
dc.type01A - Beitrag in wissenschaftlicher Zeitschrift*
dc.volume408en_US
fhnw.publicationStatePublisheden_US
fhnw.ReviewTypeAnonymous ex ante peer review of a complete publicationen_US
fhnw.InventedHereYesen_US
fhnw.IsStudentsWorknoen_US
fhnw.openAccessCategoryClosed


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