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dc.creatorFilipović, Suzana
dc.creatorPavlović, Vera P.
dc.creatorObradović, N.
dc.creatorPaunović, V.
dc.creatorMaca, Karel
dc.creatorPavlović, Vladimir
dc.date.accessioned2020-12-17T21:56:58Z
dc.date.available2020-12-17T21:56:58Z
dc.date.issued2017
dc.identifier.issn0925-8388
dc.identifier.urihttp://aspace.agrif.bg.ac.rs/handle/123456789/4393
dc.description.abstractIn the present study the effect of preparation conditions on microstructure and electrical properties of MgTiO3 ceramics was investigated. Mixture of MgO and TiO2 powders was subjected to mechanical activation for different time periods. Two types of sintering (two-step and HIP sintering) were performed on green bodies prepared by cold isostatic pressing. AC impedance spectroscopy in the low-frequency range (from 20 Hz to 1 MHz), at room and elevated temperatures, were performed in order to separate contribution of grains and grain boundaries to capacitance, resistance and conductivity of magnesium titanate ceramics. The special attention was directed to explanation of the influence of mechanical activation on electrical and morphological changes in sintered samples. The significant decrease of partial oxygen pressure in HP sintering atmosphere caused the change from insulating behavior of MgTiO3 samples after two-step sintering to semiconducting one.en
dc.publisherElsevier Science Sa, Lausanne
dc.relationinfo:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/172057/RS//
dc.rightsopenAccess
dc.sourceJournal of Alloys and Compounds
dc.subjectMechanical activationen
dc.subjectAC impedance analysisen
dc.subjectSEMen
dc.subjectTitanate-based ceramicsen
dc.titleThe impedance analysis of sintered MgTiO3 ceramicsen
dc.typearticle
dc.rights.licenseARR
dc.citation.epage115
dc.citation.other701: 107-115
dc.citation.rankaM21
dc.citation.spage107
dc.citation.volume701
dc.identifier.doi10.1016/j.jallcom.2017.01.117
dc.identifier.fulltexthttp://aspace.agrif.bg.ac.rs/bitstream/id/2938/4390.pdf
dc.identifier.scopus2-s2.0-85009868492
dc.identifier.wos000395839100016
dc.type.versionpublishedVersion


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Приказ основних података о документу