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dc.contributor.authorDrdlíková, Katarinacs
dc.contributor.authorKlement, Róbertcs
dc.contributor.authorDrdlík, Danielcs
dc.contributor.authorGalusek, Dušancs
dc.contributor.authorMaca, Karelcs
dc.date.accessioned2020-08-04T11:04:21Z
dc.date.available2020-08-04T11:04:21Z
dc.date.issued2020-07-01cs
dc.identifier.citationJournal of the European Ceramic Society. 2020, vol. 40, issue 7, p. 2573-2580.en
dc.identifier.issn0955-2219cs
dc.identifier.other163593cs
dc.identifier.urihttp://hdl.handle.net/11012/187726
dc.description.abstractTransparent Cr2O3-doped alumina ceramics were prepared by slip casting, followed by pre-sintering in ambient atmosphere and hot isostatic pressing. The effect of dopant concentration on material properties, including microstructure and optical properties was evaluated. Real in-line transmittance in the range of 20–44 % was measured for the ceramics with the mean grain size<520 nm: the transmittance decreased with increasing grain size and Cr content. The excitation spectra consisted of two broad bands with maxima at 404 nm and 558 nm, corresponding to 4A2g4T1g and 4A2g4T2g transitions of Cr3+ ions in octahedral sites of -Al2O3. The intensive deep red narrow emissions under violet/green light excitation, R-lines (2Eg4A2g transition), were observed at 692.5 nm and 693.8 nm, that are very close to ruby single crystal. The highest emission was achieved at the Cr3+ concentration of 0.4 at.%. The luminescence decay curves exhibited single-exponential behaviour with decay times of 3.6 ms.en
dc.formattextcs
dc.format.extent2573-2580cs
dc.format.mimetypeapplication/pdfcs
dc.language.isoencs
dc.publisherElseviercs
dc.relation.ispartofJournal of the European Ceramic Societycs
dc.relation.urihttps://www.sciencedirect.com/science/article/pii/S0955221919307575cs
dc.rights(C) Elseviercs
dc.subjectAluminaen
dc.subjectChromiumen
dc.subjectDopants/dopingen
dc.subjectLuminescenceen
dc.subjectReal in-line transmittanceen
dc.subjectTransparent ceramicsen
dc.titleProcessing and properties of luminescent Cr3+ doped transparent alumina ceramicsen
thesis.grantorVysoké učení technické v Brně. Středoevropský technologický institut VUT. Inovační technologie v keramicecs
thesis.grantorVysoké učení technické v Brně. Fakulta strojního inženýrství. ÚMVI-odbor keramiky a polymerůcs
sync.item.dbidVAV-163593en
sync.item.dbtypeVAVen
sync.item.insts2021.03.29 20:54:10en
sync.item.modts2021.03.29 20:14:30en
dc.coverage.issue7cs
dc.coverage.volume40cs
dc.identifier.doi10.1016/j.jeurceramsoc.2019.11.010cs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/0955-2219/cs
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versiondraften


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