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Barium titanate stannate functionally graded materials: Choosing of the Ti/Sn concentration gradient and the influence of the gradient on electrical properties
dc.contributor.editor | Priya, Shashank | |
dc.contributor.editor | Nair, K. M. | |
dc.creator | Marković, Smilja | |
dc.creator | Uskoković, Dragan | |
dc.date.accessioned | 2018-06-22T17:50:41Z | |
dc.date.available | 2018-06-22T17:50:41Z | |
dc.date.issued | 2010 | |
dc.identifier.isbn | 978-047092716-8 | |
dc.identifier.issn | 1042-1122 | |
dc.identifier.uri | https://dais.sanu.ac.rs/123456789/3411 | |
dc.description.abstract | Barium titanate stannate (BaTi1-xSnxO3, BTS) functionally graded materials (FGMs) with different Ti/Sn concentration gradients were prepared by the powder processing method followed by sintering. Firstly, with the aim of tailoring the concentration gradient of Ti/Sn, the main characteristics of BTS ingredients were studied. The influence of the Ti/Sn concentration gradient on the electrical characteristics of the FGMs was examined by impedance spectroscopy (IS). The grain-interior and grain boundary resistivity of the FGMs were distinguished and activation energies were calculated. It has been established that for the FGMs the activation energy deduced from the grain-interior conductivity (0.74-0.78 eV) is defined by chemical composition (intrinsic property) and that it does not depend on the Ti/Sn concentration gradient. Quite contrary, the activation energy for the grain boundary conductivity (1.03-1.29 eV) is determined by the microstructural gradient which is a direct consequence of the concentration gradient. The results of IS indicate that there are no insulator interfaces (cracks and/or delamination) between graded layers in FGMs. This assumption was confirmed by in situ monitoring of the sintering processes in thermal microscope, and furthermore, by SEM analysis of FGMs in cross-sectional view. | en |
dc.publisher | Hoboken, NJ : John Wiley & Sons | |
dc.rights | restrictedAccess | |
dc.source | Advances in Electroceramic Materials II | |
dc.title | Barium titanate stannate functionally graded materials: Choosing of the Ti/Sn concentration gradient and the influence of the gradient on electrical properties | en |
dc.type | conferenceObject | |
dc.rights.license | restrictedAccess | |
dc.rights.license | ARR | |
dcterms.abstract | Марковић, Смиља; Ускоковић, Драган; | |
dc.citation.spage | 3 | |
dc.citation.epage | 17 | |
dc.citation.volume | 221 | |
dc.identifier.doi | 10.1002/9780470930915.ch1 | |
dc.identifier.scopus | 2-s2.0-78149315301 | |
dc.description.other | Ceramic Transactions, Volume 221 | |
dc.description.other | 2009 Materials Science and Technology Conference (MS&T09) held at Pittsburgh, Pennsylvania, USA, October 25-29, 2009 | |
dc.type.version | publishedVersion | |
dc.identifier.rcub | https://hdl.handle.net/21.15107/rcub_dais_3411 |