Luminescent Eu3+-doped transparent alumina ceramics with high hardness

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dc.contributor.authorDrdlíková, Katarinacs
dc.contributor.authorKlement, Róbertcs
dc.contributor.authorHadraba, Hynekcs
dc.contributor.authorDrdlík, Danielcs
dc.contributor.authorGalusek, Dušancs
dc.contributor.authorMaca, Karelcs
dc.coverage.issue14cs
dc.coverage.volume37cs
dc.date.accessioned2020-08-04T11:04:30Z
dc.date.available2020-08-04T11:04:30Z
dc.date.issued2017-05-17cs
dc.description.abstractThe Eu3+-doped transparent aluminas were prepared by wet shaping technique followed by pressureless sintering and hot isostatic pressing. The effect of dopant amount on microstructure, real in-line transmission (RIT), photoluminescence (PL) properties, hardness and fracture behaviour was studied. The RIT decreased with increasing amount of the dopant. The PL emission spectra of Al2O3:Eu3+ ceramics exhibited predominant red light emission with the highest intensity (under 394 nm excitation) for material containing 0.125 at.% of Eu3+ and colour coordinates (0.645, 0.355) comparable with commercial red phosphors. The doping resulted in hardness increase from 26.1 GPa for undoped alumina to 27.6 GPa for Eu-doped sample. The study of fracture surfaces showed predominantly intergranular crack propagation micro-mechanism.en
dc.formattextcs
dc.format.extent4271-4277cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationJournal of the European Ceramic Society. 2017, vol. 37, issue 14, p. 4271-4277.en
dc.identifier.doi10.1016/j.jeurceramsoc.2017.05.007cs
dc.identifier.issn0955-2219cs
dc.identifier.other138837cs
dc.identifier.urihttp://hdl.handle.net/11012/70002
dc.language.isoencs
dc.publisherElseviercs
dc.relation.ispartofJournal of the European Ceramic Societycs
dc.relation.urihttp://www.sciencedirect.com/science/article/pii/S0955221917303394cs
dc.rightsCreative Commons Attribution-NonCommercial-NoDerivatives 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/0955-2219/cs
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/cs
dc.subjectAluminaen
dc.subjectEuropiumen
dc.subjectLuminescenceen
dc.subjectTransparent ceramicsen
dc.subjectMechanical propertiesen
dc.titleLuminescent Eu3+-doped transparent alumina ceramics with high hardnessen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionacceptedVersionen
sync.item.dbidVAV-138837en
sync.item.dbtypeVAVen
sync.item.insts2020.11.10 17:23:01en
sync.item.modts2020.11.10 17:12:09en
thesis.grantorVysoké učení technické v Brně. Středoevropský technologický institut VUT. Pokročilé keramické materiálycs
thesis.grantorVysoké učení technické v Brně. Fakulta strojního inženýrství. ÚMVI-odbor keramiky a polymerůcs
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