Microstructure, crystalline phase, and dielectric property analyses of TiO2 composition with ZrO2 addition

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dc.contributor.authorSouza, José Vitor C. [UNESP]
dc.contributor.authorCastro, Pedro J. [UNESP]
dc.contributor.authorNono, Maria C. A.
dc.contributor.authorMineiro, Sergio L.
dc.contributor.institutionInstituto Nacional de Pesquisas Espaciais (INPE)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-27T11:25:25Z
dc.date.available2014-05-27T11:25:25Z
dc.date.issued2010-12-15
dc.description.abstractFor microwave applications, including mobile and satellite communications, ceramic resonators should have a high dielectric constant, low dielectric losses, and high frequency stability. In this sense, TiO2-ZrO 2 ceramics have been investigated as a function of sintering behavior, phase composition, and microstructure. The ceramics were densified reaching a value of about 86% of theoretical density at 1400°C sintering temperature. The ceramics are prepared by mixing raw materials with the following TiO2-ZrO2 weight % ratio: 100 to 0, 90 to 10, and 80 to 20, respectively. The measured dielectric constants are between 79 and 88 values, while the quality factor due to dielectric losses are between 2820 and 5170. These results point out the influence of Ti/Zr ratio on controlling the dielectric properties. © (2010) Trans Tech Publications.en
dc.description.affiliationINPE, Av. dos Astronautas,1.758, S. J. Campos - SP, CEP 12245-970
dc.description.affiliationFEG-UNESP, Av. Dr Ariberto Pereira da Cunha, 333, Guaratinguetá - SP, CEP 12516-410
dc.description.affiliationUnespFEG-UNESP, Av. Dr Ariberto Pereira da Cunha, 333, Guaratinguetá - SP, CEP 12516-410
dc.format.extent641-645
dc.identifierhttp://dx.doi.org/10.4028/www.scientific.net/MSF.660-661.641
dc.identifier.citationMaterials Science Forum, v. 660-661, p. 641-645.
dc.identifier.doi10.4028/www.scientific.net/MSF.660-661.641
dc.identifier.issn0255-5476
dc.identifier.scopus2-s2.0-78649925740
dc.identifier.urihttp://hdl.handle.net/11449/72226
dc.language.isoeng
dc.relation.ispartofMaterials Science Forum
dc.relation.ispartofsjr0,180
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectCeramic microstructure
dc.subjectCeramic resonators
dc.subjectMicrowave dielectric properties
dc.subjectPhase composition
dc.subjectTiO2-ZrO 2
dc.subjectCeramic microstructures
dc.subjectCrystalline phase
dc.subjectDielectric constants
dc.subjectHigh dielectric constants
dc.subjectHigh-frequency stability
dc.subjectLow dielectric loss
dc.subjectMicrowave applications
dc.subjectQuality factors
dc.subjectSatellite communications
dc.subjectSintering behaviors
dc.subjectSintering temperatures
dc.subjectTheoretical density
dc.subjectTiO
dc.subjectDielectric devices
dc.subjectDielectric losses
dc.subjectMicrostructure
dc.subjectOptical resonators
dc.subjectPermittivity
dc.subjectSatellite communication systems
dc.subjectSintering
dc.subjectZirconium alloys
dc.subjectCeramic materials
dc.titleMicrostructure, crystalline phase, and dielectric property analyses of TiO2 composition with ZrO2 additionen
dc.typeTrabalho apresentado em evento
dcterms.licensehttp://www.ttp.net/Downloads.html

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