Sintering temperature influence on microwave dielectric properties of TiO2-ZrO2 ceramics

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dc.contributor.authorSouza, José Vitor C. [UNESP]
dc.contributor.authorCastro, Pedro J.
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.abstractDielectric ceramics have been widely investigated and used for microwave applications such as resonators and filters. The present study deals with the influence of sintering temperature on microwave dielectric properties of TiO2 ceramics with 10, 20, and 30 wt% ZrO2. Three compositions have been developed through mixing procedures and then tested for each sintering temperature: 1500 and 1400°C. X-ray diffraction and scanning electron microscopy are carried out aiming to explain the ceramic behavior of each sample. The dielectric constants of different ceramics for both temperatures varied from 85.4 to 62.6, while their quality factor due to dielectric losses varied from 3110 to 1630. The Q decrease is attributed to the non uniform grain growth and to the obtained crystalline phases. The best microwave parameters were obtained for the ceramics sintered at 1400°C, which can be applied in microwave circuits as dielectric resonators. © (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.extent646-651
dc.identifierhttp://dx.doi.org/10.4028/www.scientific.net/MSF.660-661.646
dc.identifier.citationMaterials Science Forum, v. 660-661, p. 646-651.
dc.identifier.doi10.4028/www.scientific.net/MSF.660-661.646
dc.identifier.issn0255-5476
dc.identifier.scopus2-s2.0-78649945635
dc.identifier.urihttp://hdl.handle.net/11449/72227
dc.language.isoeng
dc.relation.ispartofMaterials Science Forum
dc.relation.ispartofsjr0,180
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectAnatase phase
dc.subjectCeramic resonators
dc.subjectMicrowave dielectric properties
dc.subjectRutile phase
dc.subjectTiO2-Zr- O2
dc.subjectTiO
dc.subjectDielectric devices
dc.subjectDielectric losses
dc.subjectGrain growth
dc.subjectMicrowave circuits
dc.subjectMicrowave devices
dc.subjectMicrowaves
dc.subjectOptical resonators
dc.subjectOxide minerals
dc.subjectScanning electron microscopy
dc.subjectSintering
dc.subjectTitanium dioxide
dc.subjectX ray diffraction
dc.subjectZirconium
dc.subjectZirconium alloys
dc.subjectCeramic materials
dc.titleSintering temperature influence on microwave dielectric properties of TiO2-ZrO2 ceramicsen
dc.typeTrabalho apresentado em evento
dcterms.licensehttp://www.ttp.net/Downloads.html

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