Приказ основних података о документу

dc.creatorJovalekić, Čedomir
dc.creatorZdujić, Miodrag
dc.creatorPoleti, Dejan
dc.creatorKaranović, Ljiljana
dc.creatorMitrić, Miodrag
dc.date.accessioned2018-07-29T20:17:49Z
dc.date.accessioned2023-01-20T11:20:18Z
dc.date.available2018-07-29T20:17:49Z
dc.date.available2023-01-20T11:20:18Z
dc.date.issued2008
dc.identifier.issn0022-4596 (Print)
dc.identifier.issn1095-726X (Online)
dc.identifier.urihttp://TechnoRep.tmf.bg.ac.rs/handle/123456789/5578
dc.description.abstractPowder mixtures of α-Bi2O3 (bismite) and monoclinic m-ZrO2 (baddeleyite) in the molar ratio 2:3 were mechanochemically and thermally treated with the goal to examine the phases, which may appear during such procedures. The prepared samples were characterized by X-ray powder diffraction, differential scanning calorimetry (DSC), electrical measurements, as well as scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The mechanochemical reaction leads to the gradual formation of a nanocrystalline phase, which resembles δ-Bi2O3, a high-temperature Bi2O3 polymorph. Isothermal sintering in air at a temperature of 820 °C for 24 h followed by quenching to room temperature yielded a mixture of ZrO2-stabilized β-Bi2O3 and m-ZrO2 phases, whereas in slowly cooled products, the complete separation of the initial α-Bi2O3 and m-ZrO2 constituents was observed. The dielectric permittivity of the sintered samples significantly depended on the temperature. The sintered and quenched samples exhibited a hysteresis dependence of the dielectric shift, showing that the ZrO2-doped β-Bi2O3 phase possess ferroelectric properties, which were detected for the first time. This fact, together with Rietveld refinement of the β-Bi2O3/m-ZrO2 mixture based on neutron powder diffraction data showed that ZrO2-doped β-Bi2O3 has a non-centrosymmetric structure with P over(4, -) 21 c as the true space group. The ZrO2 content in the doped β-Bi2O3 and the crystal chemical reasons for the stabilization of the β-Bi2O3 phase by the addition of m-ZrO2 are discussed. © 2008 Elsevier Inc. All rights reserved.en
dc.relationinfo:eu-repo/grantAgreement/MESTD/MPN2006-2010/141027/RS//
dc.relationinfo:eu-repo/grantAgreement/MESTD/MPN2006-2010/142030/RS//
dc.rightsrestrictedAccess
dc.sourceJournal of Solid State Chemistry
dc.subjectBi2O3
dc.subjectferroelectricity
dc.subjectmechanochemical treatment
dc.subjectZrO2
dc.titleStructural and electrical properties of the 2Bi2O3·3ZrO2 systemen
dc.typearticleen
dc.rights.licenseARR
dc.citation.epage1329
dc.citation.issue6
dc.citation.spage1321
dc.citation.volume181
dc.identifier.doi10.1016/j.jssc.2008.02.038
dc.identifier.rcubhttps://hdl.handle.net/21.15107/rcub_dais_3582
dc.identifier.scopus2-s2.0-44649097464
dc.identifier.wos000256857600007
dc.type.versionpublishedVersion


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Приказ основних података о документу