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dc.contributorRistić, Momčilo M.
dc.creatorPaunović, Vesna
dc.creatorMitić, Vojislav V.
dc.creatorMiljković, Miroslav
dc.creatorPavlović, Vera P.
dc.creatorŽivković, Ljiljana
dc.date.accessioned2017-06-10T15:45:07Z
dc.date.issued2012
dc.identifier.issn1820-7413 (Online)
dc.identifier.issn0350-820X (Print)
dc.identifier.urihttp://dais.sanu.ac.rs/123456789/194
dc.description.abstractDoped BaTiO 3-ceramics is very interesting for their application as PTCR resistors, multilayer ceramic capacitors, thermal sensors etc. Ho doped BaTiO 3 ceramics, with different Ho 2O 3 content, ranging from 0.01 to 1.0 wt% Ho, were investigated regarding their microstructural and dielectric characteristics. The samples were prepared by the conventional solid state reaction and sintered at 1320° and 1380°C in an air atmosphere for 4 hours. The grain size and microstructure characteristics for various samples and their phase composition was carried out using a scanning electron microscope (SEM) equipped with EDS system. SEM analysis of Ho/BaTiO 3 doped ceramics showed that in samples doped with a rare-earth ions low level, the grain size ranged from 20-30μμm, while with the higher dopant concentration the abnormal grain growth is inhibited and the grain size ranged between 2-10μμm. Dielectric measurements were carried out as a function of temperature up to180 °C. The low doped samples sintered at 1380 °C, display the high value of dielectric permittivity at room temperature, 2400 for 0.01 Ho/BaTiO 3. A nearly flat permittivity-response was obtained in specimens with higher additive content. Using a Curie-Weiss low and modified CurieWeiss low the Curie constant (C), Curie temperature (Tc) and a critical exponent of nonlinearity (γ) were calculated. The obtained value of γ pointed out that the specimens have almost sharp phase transition.en
dc.formatapplication/pdf
dc.languageen
dc.publisherBelgrade : International Institute for the Science of Sintering
dc.relationinfo:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/172057/RS//
dc.rightsopenAccess
dc.sourceScience of Sinteringen
dc.subjectBaTiO3
dc.subjectbarium titanate
dc.subjectdielectric properties
dc.subjectmicrostructure
dc.subjectsintering
dc.titleHo2O3 Additive Effects on BaTiO3 Ceramics Microstructure and Dielectric Propertiesen
dc.typearticle
dc.rights.licenseBY-NC-ND
dcterms.abstractМитић, Војислав В.; Пауновић, Весна; Миљковић, Мирослав; Павловић, Вера П.; Живковић, Љиљана;
dc.citation.spage223
dc.citation.epage233
dc.citation.volume44
dc.citation.issue2
dc.identifier.wos000318148600010
dc.identifier.doi10.2298/SOS1202223P
dc.identifier.scopus2-s2.0-84866404412
dc.type.versionpublishedVersion
dc.identifier.fulltexthttp://dais.sanu.ac.rs/bitstream/id/20060/191.pdf


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