Show simple item record

dc.contributorMitić, Vojislav V.
dc.contributorObradović, Nina
dc.contributorMančić, Lidija
dc.creatorPaunović, Vesna
dc.creatorMitić, Vojislav V.
dc.creatorMiljković, Miroslav
dc.creatorŽivković, Ljiljana
dc.date.accessioned2018-03-06T09:09:03Z
dc.date.available2018-03-06T09:09:03Z
dc.date.issued2013
dc.identifier.urihttp://www.itn.sanu.ac.rs/opus4/frontdoor/index/index/docId/674
dc.identifier.urihttp://dais.sanu.ac.rs/123456789/412
dc.identifier.urihttp://www.itn.sanu.ac.rs/opus4/files/674/Paunovic-ACAII-20.pdf
dc.identifier.urihttp://vinar.vin.bg.ac.rs/handle/123456789/7425
dc.description.abstractThe Er doped BaTiO3 ceramics, with different Er2O3 content, ranging from 0.01 to 1.0 wt% Er, were investigated regarding their microstructural and dielectric characteristics in this paper. Doped BaTiO3 were prepared by using conventional method of solid state sintering at 1380 °C for four hours. SEM analysis of Er/BaTiO3 doped ceramics showed that in samples doped with a rareearth ions low level, the grain size ranged from 20-40 μm, while with the higher dopant concentration the abnormal grain growth is inhibited and the grain size ranged between 2-10μm. Dielectric measurements were carried out as a function of temperature up to180°C at different frequencies. The low doped samples sintered at 1380 °C, display the high value of dielectric permittivity at room temperature, 2160 for 0.01 Er/BaTiO3. A nearly flat permittivity-response was obtained in specimens with higher additive content. Using a Curie-Weiss low and modified Curie-Weiss low the Curie constant C, Curie temperature Tc and a critical exponent of nonlinearity γ were calculated. The Curie temperature of doped samples were ranged from 126 to 130 °C. The Curie constant for all series of samples decrease with increase of dopant concentration and the lowest values were mesured from samples doped with 0.01 wt% of aditive. The obtained value of γ pointed out that the specimens have almost sharp phase transition.en
dc.format(2013) 20-20
dc.formatapplication/pdf
dc.languageen
dc.publisherBelgrade : Serbian Ceramic Society
dc.rightsopenAccess
dc.sourceAdvanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts : II Serbian Ceramic Society Conference, Sep 30th-Oct 1st, 2013, Belgradeen
dc.subjectBaTiO3
dc.subjectbarium titanate
dc.subjectEr doping
dc.subjectmicrostructure
dc.titleMicrostructure evolution and phase transition in Er doped BaTiO3 ceramicsen
dc.typeconferenceObject
dc.rights.licenseBY-NC-ND
dcterms.abstractПауновић, Весна; Миљковић, Мирослав; Живковић, Љиљана; Митић, Војислав В.;
dc.citation.spage20
dc.citation.epage20
dc.identifier.fulltexthttp://vinar.vin.bg.ac.rs//bitstream/id/14031/7419.pdf


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record