Microstructural features and electrical properties of copper oxide added potassium sodium niobate ceramics

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dc.contributor.authorAlkoy, Ebru Mensur
dc.contributor.authorPapila, Melih
dc.date.accessioned2024-07-12T21:45:35Z
dc.date.available2024-07-12T21:45:35Z
dc.date.issued2010en_US
dc.departmentMaltepe Üniversitesien_US
dc.description.abstractIn this study, effects of 0.5, 1.0 and 1.5 mole% CuO addition on the properties of potassium sodium niobate (K0.5Na0.5)NbO3-KNN ceramics were investigated. Pure KNN and CuO-added KNN pellet samples were sintered at 1100 and 1090 degrees C for 4 h, respectively. Phase analysis showed that all samples crystallized in pure orthorhombic perovskite phase. Addition of 1.0 and 1.5 mole% CuO caused grain growth, densification and formation of a liquid phase at the grain boundaries. Curie temperature has shifted from 480 to 435 degrees C with increasing CuO ratio. The most remarkable characteristic of the hysteresis loops were the constricted nature of the 0.5 mole% CuO-added KNN's curve and the antiferroelectric-like appearance of the 1.5 mole% CuO-added KNN's curve. Piezeoelectric properties of d(33) = 120 pC/N, k(p) = 0.27 and Q(m) = 772 were obtained from the 1.5 mole% CuO-added KNN. (C) 2010 Elsevier Ltd and Techna Group S.r.l. All rights reserved.en_US
dc.description.sponsorshipTurkish Academy of Sciencesen_US
dc.description.sponsorshipThe authors wish to acknowledge the financial support of Turkish Academy of Sciences.en_US
dc.identifier.doi10.1016/j.ceramint.2010.03.018
dc.identifier.endpage1927en_US
dc.identifier.issn0272-8842
dc.identifier.issn1873-3956
dc.identifier.issue6en_US
dc.identifier.scopus2-s2.0-77954143147en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage1921en_US
dc.identifier.urihttps://dx.doi.org/10.1016/j.ceramint.2010.03.018
dc.identifier.urihttps://hdl.handle.net/20.500.12415/7843
dc.identifier.volume36en_US
dc.identifier.wosWOS:000280027800025en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoenen_US
dc.publisherELSEVIER SCI LTDen_US
dc.relation.ispartofCERAMICS INTERNATIONALen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.snmzKY00492
dc.subjectPowders: solid state reactionen_US
dc.subjectMicrostructure-finalen_US
dc.subjectFerroelectric propertiesen_US
dc.subject(K,Na)NbO3en_US
dc.titleMicrostructural features and electrical properties of copper oxide added potassium sodium niobate ceramicsen_US
dc.typeArticle
dspace.entity.typePublication

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