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dc.creatorMarković, Smilja
dc.creatorJovalekić, Čedomir
dc.creatorVeselinović, Ljiljana
dc.creatorMentus, Slavko
dc.creatorUskoković, Dragan
dc.date.accessioned2018-06-22T18:59:59Z
dc.date.available2018-06-22T18:59:59Z
dc.date.issued2010
dc.identifier.issn0955-2219
dc.identifier.urihttps://dais.sanu.ac.rs/123456789/3425
dc.description.abstractBarium titanate stannate (BTS) functionally graded materials (FGMs) with different tin/titanium concentration gradient were prepared by the powder-stacking method and uniaxially pressing process, followed by sintering. Impedance spectroscopy (IS) was used to determine the electrical characteristics of FGMs and ingredient BTS ceramics, as well as to distinguish the grain-interior and grain boundary resistivity of the ceramics. Activation energies of FGMs and ingredients were calculated. It has been established that for BTS ceramics the activation energy deduced from grain-interior conductivity (0.73-0.75 eV) is defined by chemical composition, while activation energy for grain boundary conductivity (1.07-1.25 eV) is influenced by microstructural development (density and average grain size). Furthermore, for FGMs, activation energy for grain-interior conductivity kept the intrinsic properties (0.74-0.78 eV) and did not depend on tin/titanium concentration gradient, while activation energy (1.03-1.29 eV) for grain boundary was determined by the microstructural gradient. No point dissipation was observed by IS, accordingly, no insulator interfaces (cracks and/or delamination) between graded layers were detected. © 2009 Elsevier Ltd. All rights reserved.en
dc.publisherElsevier
dc.relationinfo:eu-repo/grantAgreement/MESTD/MPN2006-2010/142006/RS//
dc.rightsrestrictedAccess
dc.sourceJournal of the European Ceramic Society
dc.subjectBaTiO3
dc.subjectgrain boundary
dc.subjectsintering
dc.subjectelectrical properties
dc.subjectfunctionally graded materials
dc.titleElectrical properties of barium titanate stannate functionally graded materialsen
dc.typearticleen
dc.rights.licenseARR
dcterms.abstractВеселиновић, Љиљана; Ментус, Славко; Јовалекић, Чедомир; Марковић, Смиља; Ускоковић, Драган;
dc.citation.spage1427
dc.citation.epage1435
dc.citation.volume30
dc.citation.issue6
dc.identifier.wos000275635000025
dc.identifier.doi10.1016/j.jeurceramsoc.2009.10.020
dc.identifier.scopus2-s2.0-75849140816
dc.type.versionpublishedVersion
dc.identifier.rcubhttps://hdl.handle.net/21.15107/rcub_dais_3425


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Приказ основних података о документу