Optical properties of powder and ceramics of aluminium oxynitride obtained by self-propagating high-temperature synthesis

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dc.contributor.authorAkopdzhanyan, T.G.
dc.contributor.authorKondakov, A.A.
dc.contributor.authorRupasov, S.I.
dc.contributor.authorKozlova, A.P.
dc.contributor.authorPankratov, Vladimir
dc.date.accessioned2022-01-10T17:06:51Z
dc.date.available2022-01-10T17:06:51Z
dc.date.issued2021
dc.descriptionThe reported study was funded by RFBR according to the Research Project No. 19-08-00655. V.P. acknowledges the State Research Program ‘Aug-stas enerģijas fizika un paātrinātāju tehnoloģijas’ (Projekta Nr. VPP-IZM-CERN-2020/1-0002). The Institute of Solid State Physics, University of Latvia as the Center of Excellence has received funding from the H2020-WIDESPREAD-01-2016-2017-Teaming Phase2 under Grant Agreement No. 739508, Project CAMART2.en_US
dc.description.abstractThe synthesis method of aluminium oxynitride (AlON) powders by nitriding of Al/Al2 O3 mixture under high-pressure nitrogen is proposed. The novelty of this method consists in adding KClO4 or Mg(ClO4 )2 and extra Al into the starting mixture (Al+Al2 O3 ) to cause the exothermal aluminium oxidation reaction, which therefore initiates the aluminium nitriding reaction. The microstructure and phase composition of the AlON powders obtained by self-propagating high-temperature synthesis are demonstrated by means of SEM and XRD analysis. Diffuse reflection spectra of AlON powders have been measured and the values of band-gap energy have been calculated. Optical transmission and reflection characteristics of the AlON ceramic samples sintered from AlON powders at 1930°C have been studied. The influence of the technological parameters of ceramics production on their transparency is revealed – the most transparent sample is obtained from the powders synthesized with the Mg(ClO4 )2 additive and sintered for 6 h. © Lietuvos mokslų akademija, 2021.en_US
dc.description.sponsorshipRFBR according to the Research Project No. 19-08-00655; National Research Program VPP-IZM-CERN-2020/1-0002; the Institute of Solid State Physics, University of Latvia as the Center of Excellence has received funding from the H2020-WIDESPREAD-01-2016-2017-Teaming Phase2 under Grant Agreement No. 739508, Project CAMART2.en_US
dc.identifier.doi10.3952/physics.v61i3.4516
dc.identifier.issn1648-8504
dc.identifier.urihttps://www.lmaleidykla.lt/ojs/index.php/physics/article/view/4516
dc.identifier.urihttps://dspace.lu.lv/dspace/handle/7/56932
dc.language.isoengen_US
dc.publisherLithuanian Physical Societyen_US
dc.relationinfo:eu-repo/grantAgreement/EC/H2020/739508/EU/Centre of Advanced Material Research and Technology Transfer/CAMART²en_US
dc.relation.ispartofseriesLithuanian Journal of Physics;61 (3)
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectResearch Subject Categories::NATURAL SCIENCESen_US
dc.subjectAlONen_US
dc.subjectAluminium oxynitrideen_US
dc.subjectCombustionen_US
dc.subjectOptical propertiesen_US
dc.subjectSelf-propagating high-temperature synthesisen_US
dc.subjectTransparent ceramicsen_US
dc.titleOptical properties of powder and ceramics of aluminium oxynitride obtained by self-propagating high-temperature synthesisen_US
dc.title.alternativeSavaime sklindančios aukštatemperatūrinės sintezės būdu gautų aliuminio oksinitrido miltelių ir jų keramikų optinės savybėsen_US
dc.typeinfo:eu-repo/semantics/articleen_US
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