Show simple item record

dc.contributor.authorCOLEMAN, JONATHANen
dc.contributor.authorMOEBIUS, MATTHIASen
dc.date.accessioned2015-05-19T14:55:15Z
dc.date.available2015-05-19T14:55:15Z
dc.date.issued2015en
dc.date.submitted2015en
dc.identifier.citationBarwich, S., Coleman, J.N., Möbius, M.E, Yielding and flow of highly concentrated, few-layer graphene suspensions, Soft Matter, 11, 16, 2015, 3159-3164en
dc.identifier.otherYen
dc.identifier.urihttp://hdl.handle.net/2262/73950
dc.descriptionPUBLISHEDen
dc.description.abstractFor a wide range of applications of graphene suspensions, a thorough understanding of their rheological properties is crucial. We probe the microstructure of dense suspensions of micron-sized, few-layer, defect-free graphene platelets by measuring their viscoelastic properties at various concentrations up to 39 mg ml-1. We propose a model to relate the yield strain to the mesh size of the microstructure as a function of volume fraction Φ. From the yield stress measurements we infer the typical bond energy (≈20 kBT) and Φ dependence of the bond number density. These results allow us to express the steady shear viscosity for Peclet number Pe < 10 in terms of the platelet dimensions, bond energy and Φ using a relaxation ansatz.en
dc.description.sponsorshipThe authors acknowledge support from Science Foundation Ireland under contract numbers G22226/RFP-1/MTR/3135, COST Actions MP1305 and MP1106, PRTLI and Thomas Swan & Co ltden
dc.format.extent3159-3164en
dc.relation.ispartofseriesSoft Matteren
dc.relation.ispartofseries11en
dc.relation.ispartofseries16en
dc.rightsYen
dc.subjectGraphene; Microstructure; Platelets; Viscoelasticity; Yield stressen
dc.subject.lcshGraphene; Microstructure; Platelets; Viscoelasticity; Yield stressen
dc.titleYielding and flow of highly concentrated, few-layer graphene suspensionsen
dc.typeJournal Articleen
dc.contributor.sponsorScience Foundation Ireland (SFI)en
dc.contributor.sponsorHigher Education Authority (HEA)en
dc.type.supercollectionscholarly_publicationsen
dc.type.supercollectionrefereed_publicationsen
dc.identifier.peoplefinderurlhttp://people.tcd.ie/colemajen
dc.identifier.peoplefinderurlhttp://people.tcd.ie/mobiusmen
dc.identifier.rssinternalid103106en
dc.identifier.doihttp://dx.doi.org/10.1039/c4sm02855den
dc.rights.ecaccessrightsopenAccess
dc.contributor.sponsorGrantNumberG2226/RFP-1/MTR/3135en
dc.subject.TCDThemeNanoscience & Materialsen


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record