Barium nanotitanate microwave ceramics obtained by a chemical method

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorNational Institute for Space Research (INPE)-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorCastro, Pedro J.-
Autor(es): dc.creatorZanetti, Sonia M. [UNESP]-
Data de aceite: dc.date.accessioned2022-08-04T22:03:29Z-
Data de disponibilização: dc.date.available2022-08-04T22:03:29Z-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2013-11-18-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1109/IMOC.2013.6646599-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/219970-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/219970-
Descrição: dc.descriptionDielectric resonators with high dielectric constant, low dielectric losses and high frequency stability have been widely used in microwave circuits for telecommunications as filters, oscillators, antennas. Among the compounds of the BaO-TiO2 system, Ba2Ti9O20 has met these requirements. However, such materials are difficult to obtain by conventional mechanical powder mixture due to the preferential formation of secondary phases and high sintering temperatures around 1300°C. In this investigation a new approach for obtaining B2O3-added Ba2Ti9O20 is considered through a chemical method involving a co-precipitation process aiming to reduce the sintering temperature and to promote a high microstructural homogeneity of the compound. Therefore, cylindrical ceramics were sintered at 1000-1150°C presenting values of electric permittivity from 34.8 to 41.4, quality factor due to dielectric losses from 2945 to 3525, temperature coefficient from 6.2 to 10.2 ppm/°C and an overall tunable frequency range of 5.00-7.00 GHz, which yields promising properties for use as dielectric resonators. © 2013 IEEE.-
Descrição: dc.descriptionNational Institute for Space Research (INPE), 12227-010 São José dos Campos, SP-
Descrição: dc.descriptionCDMDC Universidade Estadual Paulista (UNESP), 14807-455 Araraquara, SP-
Descrição: dc.descriptionCDMDC Universidade Estadual Paulista (UNESP), 14807-455 Araraquara, SP-
Idioma: dc.languageen-
Relação: dc.relationSBMO/IEEE MTT-S International Microwave and Optoelectronics Conference Proceedings-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectbarium nanotitanate-
Palavras-chave: dc.subjectdielectric resonators-
Palavras-chave: dc.subjectmicrowave ceramics-
Palavras-chave: dc.subjectmicrowave properties-
Título: dc.titleBarium nanotitanate microwave ceramics obtained by a chemical method-
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