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dc.creatorKosanović, Darko
dc.creatorZivojinović, J.
dc.creatorObradović, N.
dc.creatorPavlović, Vera P.
dc.creatorPavlović, Vladimir
dc.creatorPeles, A.
dc.creatorRistić, M.M.
dc.date.accessioned2020-12-17T20:57:08Z
dc.date.available2020-12-17T20:57:08Z
dc.date.issued2014
dc.identifier.issn0272-8842
dc.identifier.urihttp://aspace.agrif.bg.ac.rs/handle/123456789/3418
dc.description.abstractFerroelectric barium strontium titanate (Ba0.77Sr0.23TiO3), BST, was prepared by solid-state reactions using as the starting compounds powder of barium carbonate (BaCO3), strontium carbonate (SrCO3) and titanium dioxide (TiO2 anatase). Non-activated mixtures and mixtures mechanically activated in a high-energy planetary ball mill (0, 5, 10, 20, 40, 80 and 120 min) were sintered at 1100, 1200, 1300 and 1400 degrees C for 2 h in air atmosphere. Defects and the effect of the beginning of the sintering process on the microstructure were investigated by scanning electron microscopy (SEM). Electrical measurements (loss tangent and resistivity as the function of frequency X-C =f(log nu)) were performed for ceramics sintered at 1400 degrees C for 2 h. It has been found that mechanical activation can reduce the sintering temperature by around 100 degrees C, which leads to significant energy savings. Furthermore, activated for 80 min and sintered at. 1400 degrees C for 2 h exhibit the largest density values and have about 36% lower dielectric loss at a frequency of 1 kHz and about 57% at a frequency of 10 kHz than the samples obtained from the initial non-activated powder sintered under the same conditions.en
dc.publisherElsevier Sci Ltd, Oxford
dc.relationinfo:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/172057/RS//
dc.relationSerbian Academy of Sciences and Arts [F/198]
dc.rightsopenAccess
dc.sourceCeramics International
dc.subjectMillingen
dc.subjectSinteringen
dc.subjectElectrical propertiesen
dc.titleThe influence of mechanical activation on the electrical properties of Ba0.77Sr0.23TiO3 ceramicsen
dc.typearticle
dc.rights.licenseARR
dc.citation.epage11888
dc.citation.issue8
dc.citation.other40(8): 11883-11888
dc.citation.rankM21
dc.citation.spage11883
dc.citation.volume40
dc.identifier.doi10.1016/j.ceramint.2014.04.023
dc.identifier.fulltexthttp://aspace.agrif.bg.ac.rs/bitstream/id/2034/3415.pdf
dc.identifier.rcubconv_5353
dc.identifier.scopus2-s2.0-84903899502
dc.identifier.wos000340328600051
dc.type.versionpublishedVersion


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