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Please use this identifier to cite or link to this item: https://ri.ufs.br/jspui/handle/riufs/24468
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dc.contributor.authorMoraes, Carlos Gustavo Pereira-
dc.contributor.authorJesus, Fabiane Alexsandra Andrade de-
dc.contributor.authorMacedo, Zélia Soares-
dc.date.accessioned2026-02-02T19:58:34Z-
dc.date.available2026-02-02T19:58:34Z-
dc.date.issued2014-
dc.identifier.citationMORAES, C. G. P.; JESUS, F. A. A.; MACEDO, Z. S. Electrical and dielectric characterization of Bi 12 GeO20 preparedby modified pechini method. Advances in Condensed Matter Physics, New York, n. 1, 2014. Disponível em: https://onlinelibrary.wiley.com/doi/epdf/10.1155/2014/968349. Acesso em: 2 fev. 2026.pt_BR
dc.identifier.issn1687-8124-
dc.identifier.urihttps://ri.ufs.br/jspui/handle/riufs/24468-
dc.languageengpt_BR
dc.publisherHindawi Publishing Corporationpt_BR
dc.relation.ispartofAdvances in Condensed Matter Physicspt_BR
dc.subjectDielectric characterizationeng
dc.subjectBismuth germanateeng
dc.subjectPechini routeeng
dc.titleElectrical and dielectric characterization of Bi 12 GeO20 preparedby modified pechini methodpt_BR
dc.typeArtigopt_BR
dc.identifier.licenseCreative Commons Atribuição 3.0 Não Adaptada (CC BY 3.0)pt_BR
dc.description.resumoBismuth germanate (Bi12 GeO 20 ) ceramics were produced using modified Pechini route, and the synthesis parameters, crystallinephases, microstructure, and sintering conditions were investigated. Bi 12 GeO 20 powders with submicrometric particle sizes wereinvestigated for calcination temperatures from 400 to 600 C, with soaking times of 1 h and 5 h. Controlling the synthesis parameters,dense ceramics with two different grain sizes of 3.4 ± 0.5 um and 5.7 ± 0.8 um could be produced after sintering at 750∘C/1 h.The electric and dielectric properties of these ceramics were determined by impedance spectroscopy (IS). From the results, itwas concluded that the dielectric permittivity measured at high frequencies is insensitive to the grain size, while the AC darkconductivity presents a noticeable dependency on this feature. This behaviour was discussed on the basis of a Maxwell-Wagnerinterfacial relaxation, whose intensity depends directly on the volume fraction of grain boundaries in the sample.pt_BR
dc.description.localNew Yorkpt_BR
dc.identifier.doihttps://doi.org/10.1155/2014/968349-
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