Spark plasma sintering of doped (k-x na1-x)nbo3 piezoceramics

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dc.contributor.authorSouza, C. A. [UNIFESP]
dc.contributor.authorEiras, J. A.
dc.contributor.authorLente, M. H. [UNIFESP]
dc.date.accessioned2019-01-21T10:29:53Z
dc.date.available2019-01-21T10:29:53Z
dc.date.issued2016
dc.description.abstractIn this work, pure and doped (K-0.48 Na-0.52)NbO3 ceramics (KNN) were prepared by using Spark Plasma Sintering (SPS) method. In order to investigate the influence of doping elements on the microstructural, structural and dielectric properties of KNN, Cu2+ and Li1+ doping elements were added. The results revealed the viability to produce highly dense pure and doped KNN ceramics with good crystallization in the perovskite phase. Densities around 96% and 99% of the theoretical one were reached. In relation to pure KNN, it was verified that Cu2+ addition reduced significantly the sintering temperature, revealing a better microstructure with a more homogeneous grain size distribution and structure with well-defined splitting of the XRD peaks. In comparison to pure KNN, the addition of both doping elements decreased both the dielectric constant the dielectric losses as well.en
dc.description.affiliationUniv Fed Sao Paulo, Inst Ciencia & Tecnol, Sjc, SP, Brazil
dc.description.affiliationUniv Fed Sao Carlos, Dept Fis, Sao Carlos, SP, Brazil
dc.description.affiliationUnifespUniv Fed Sao Paulo, Inst Ciencia & Tecnol, Sjc, SP, Brazil.
dc.description.sourceWeb of Science
dc.description.sponsorshipFAPESP
dc.description.sponsorshipCNPq
dc.description.sponsorshipFINEP
dc.format.extent47-56
dc.identifierhttps://doi.org/10.1080/00150193.2016.1171983
dc.identifier.citationFerroelectrics. Abingdon, v. 499, n. 1(3 SI), p. 47-56, 2016.
dc.identifier.doi10.1080/00150193.2016.1171983
dc.identifier.issn0015-0193
dc.identifier.urihttp://repositorio.unifesp.br/handle/11600/49460
dc.identifier.wosWOS:000379245900006
dc.language.isoeng
dc.publisherWiley-Blackwell
dc.relation.ispartofFerroelectrics
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.subjectLead-Free Piezoelectricsen
dc.subjectSpark Plasma Sinteringen
dc.subjectPiezoelectric TransducersFree Piezoelectric Ceramicsen
dc.subjectSodium-Potassium Niobateen
dc.subjectLead-Free Piezoceramicsen
dc.subjectElectrical-Propertiesen
dc.subjectTitanate Ceramicsen
dc.subjectPhase-Transitionsen
dc.subjectTemperatureen
dc.subjectBehavioren
dc.subjectMicrostructureen
dc.subjectAlkalineen
dc.titleSpark plasma sintering of doped (k-x na1-x)nbo3 piezoceramicsen
dc.typeinfo:eu-repo/semantics/article
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