L. Yurchenko, I. Bykov, A. Vasylyev, V. Vereshchak, G. Suchaneck, L. Jastrabík, A. Dejneka
{"title":"Defect structure of zirconium oxide nanosized powders with Y2O3, Sc2O3, Cr2O3 impurities","authors":"L. Yurchenko, I. Bykov, A. Vasylyev, V. Vereshchak, G. Suchaneck, L. Jastrabík, A. Dejneka","doi":"10.1109/OMEE.2012.6464776","DOIUrl":null,"url":null,"abstract":"Formation mechanisms of paramagnetic centers originating from Zr<sup>3+</sup> and Cr<sup>3+</sup> ions as well as the influence of composition of nanoparticles on thermogeneration processes of these paramagnetic centers in ZrO<inf>2</inf> structure were studied. A set of nanosized powders of zirconium oxide was investigated by electron paramagnetic resonance method: nominally pure ZrO<inf>2</inf>; ZrO<inf>2</inf> with Y<inf>2</inf>O<inf>3</inf> and Sc<inf>2</inf>O<inf>3</inf>; ZrO<inf>2</inf> with Cr<inf>2</inf>O<inf>3</inf>; ZrO<inf>2</inf> with Y<inf>2</inf>O<inf>3</inf> and Cr<inf>2</inf>O<inf>3</inf>. It is observed that the influence of annealing on EPR lines of Zr<sup>3+</sup> and Cr<sup>3+</sup> ions is different. Nuclear magnetic resonance data have shown that zirconium dioxide nanoparticles with Sc and Y impurities include two types of water molecules and two types of hydroxyl groups.","PeriodicalId":6332,"journal":{"name":"2012 IEEE International Conference on Oxide Materials for Electronic Engineering (OMEE)","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2012-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2012 IEEE International Conference on Oxide Materials for Electronic Engineering (OMEE)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/OMEE.2012.6464776","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
Formation mechanisms of paramagnetic centers originating from Zr3+ and Cr3+ ions as well as the influence of composition of nanoparticles on thermogeneration processes of these paramagnetic centers in ZrO2 structure were studied. A set of nanosized powders of zirconium oxide was investigated by electron paramagnetic resonance method: nominally pure ZrO2; ZrO2 with Y2O3 and Sc2O3; ZrO2 with Cr2O3; ZrO2 with Y2O3 and Cr2O3. It is observed that the influence of annealing on EPR lines of Zr3+ and Cr3+ ions is different. Nuclear magnetic resonance data have shown that zirconium dioxide nanoparticles with Sc and Y impurities include two types of water molecules and two types of hydroxyl groups.
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