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Characterization and microstructure evolution in er-doped batio3 ceramics
dc.creator | Mitić, V. | |
dc.creator | Pavlović, Vladimir | |
dc.creator | Paunović, V. | |
dc.creator | Kocić, Lj | |
dc.creator | Zivković, Lj | |
dc.date.accessioned | 2020-12-17T19:40:21Z | |
dc.date.available | 2020-12-17T19:40:21Z | |
dc.date.issued | 2010 | |
dc.identifier.issn | 1042-1122 | |
dc.identifier.uri | http://aspace.agrif.bg.ac.rs/handle/123456789/2150 | |
dc.description.abstract | BaTiO3-ceramics are known as some of the most useful electroceramics with a various applications. In this study the effect of Er2O3 as additive on the microstructure and dielectric properties of doped BaTiO3 was investigated. The samples doped with 0.01 to 1.0 wt% Er2O3 were prepared using by conventional solid state procedure, and were sintered at 1350 degrees C for four hours. The microstructure of sintered specimens was investigated by SEM-5300 and capacitance and dielectric loss measurements have been done using LCR-metra Agilent 4284A in the frequency range from 20Hz to 1MHz. The microstructure study with low additive concentration shows abnormal grain size, with average grain size between 20-60 mu m. With the higher dopant concentracion the abnormal grain growth is inhibited and the grain size ranged between 5-15 mu m. The dielectric constant decrease with increase of dopant concentration and for all of the investigated samples ranged from 650 to 1600 at room temperature. The dissipation losses a linear decrease v.s frequency is mesured for all investigated samples. We applied a fractal method for the microstructure analysis. This method for analysis of the structure of ceramics provides a new approach for describing, predicting and modeling the grain shape and relations between the BaTiO3 ceramic structure and dielectrical properties. | en |
dc.relation | info:eu-repo/grantAgreement/MESTD/MPN2006-2010/142011/RS// | |
dc.rights | restrictedAccess | |
dc.source | Ceramic Transactions | |
dc.subject | Barium-titanate | en |
dc.subject | Microstructure | en |
dc.subject | Fractal model | en |
dc.subject | Dielectric properties | en |
dc.title | Characterization and microstructure evolution in er-doped batio3 ceramics | en |
dc.type | conferenceObject | |
dc.rights.license | ARR | |
dc.citation.epage | 103 | |
dc.citation.other | 221: 89-103 | |
dc.citation.spage | 89 | |
dc.citation.volume | 221 | |
dc.identifier.doi | 10.1002/9780470930915.ch9 | |
dc.identifier.scopus | 2-s2.0-78149289046 | |
dc.identifier.wos | 000287221600009 | |
dc.type.version | publishedVersion |