Effects of sintering temperature on the internal barrier layer capacitor (IBLC) structure in CaCu3Ti4O12 (CCTO) ceramics

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dc.contributor.authorSchmidt, Rainer
dc.contributor.authorStennett, Martin
dc.contributor.authorHyatt, Neil
dc.contributor.authorPokorny, Jan
dc.contributor.authorPrado Gonjal, Jesús De La Paz
dc.contributor.authorMing Li
dc.contributor.authorSinclair, Derek
dc.date.accessioned2024-01-25T09:34:32Z
dc.date.available2024-01-25T09:34:32Z
dc.date.issued2012
dc.descriptionSe deposita la versión postprint del artículo
dc.description.abstractThe formation of the internal barrier layer capacitor (IBLC) structure in CaCu3Ti4O12 (CCTO) ceramics was found to be facilitated by the ceramic heat treatment. Electrically insulating grain boundary (GB) and semi-conducting grain interior areas were characterized by impedance spectroscopy to monitor the evolution of the IBLC structure with increasing sintering temperature TS (975–1100 °C). The intrinsic bulk and GB permittivity increased by factors of ≈2 and 300, respectively and the bulk resistivity decreased by a factor of ≈103. These trends were accompanied by increased Cu segregation from the CCTO ceramics as detected by scanning electron microscopy and quantitative energy dispersive analysis of X-rays. The chemical changes due to possible Cu-loss in CCTO ceramics with increasing TS are small and beyond the detection limits of X-ray absorption spectroscopy near Cu and Ti K-edges and Raman Spectroscopy.
dc.description.departmentDepto. de Química Inorgánica
dc.description.departmentDepto. de Física de Materiales
dc.description.facultyFac. de Ciencias Químicas
dc.description.facultyFac. de Ciencias Físicas
dc.description.refereedTRUE
dc.description.statuspub
dc.identifier.citationSchmidt, Rainer, et al. «Effects of Sintering Temperature on the Internal Barrier Layer Capacitor (IBLC) Structure in CaCu3Ti4O12 (CCTO) Ceramics». Journal of the European Ceramic Society, vol. 32, n.o 12, septiembre de 2012, pp. 3313-23. https://doi.org/10.1016/j.jeurceramsoc.2012.03.040.
dc.identifier.doi10.1016/j.jeurceramsoc.2012.03.040
dc.identifier.issn0955-2219
dc.identifier.officialurlhttps://doi.org/10.1016/j.jeurceramsoc.2012.03.040
dc.identifier.urihttps://hdl.handle.net/20.500.14352/95298
dc.issue.number12
dc.journal.titleJournal of the European Ceramic Society
dc.language.isoeng
dc.page.final3323
dc.page.initial3313
dc.publisherElsevier
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internationalen
dc.rights.accessRightsopen access
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subject.cdu538.9
dc.subject.keywordGrain boundaries
dc.subject.keywordDielectric properties
dc.subject.keywordChemical properties
dc.subject.keywordPerovskites
dc.subject.keywordCapacitors
dc.subject.ucmQuímica inorgánica (Química)
dc.subject.ucmMateriales
dc.subject.ucmFísica del estado sólido
dc.subject.unesco2210.28 Química del Estado Sólido
dc.subject.unesco2303 Química Inorgánica
dc.titleEffects of sintering temperature on the internal barrier layer capacitor (IBLC) structure in CaCu3Ti4O12 (CCTO) ceramics
dc.typejournal article
dc.type.hasVersionAM
dc.volume.number32
dspace.entity.typePublication
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relation.isAuthorOfPublication7a2b8d3d-7159-48e6-a318-76923a9867ed
relation.isAuthorOfPublication.latestForDiscovery7a2b8d3d-7159-48e6-a318-76923a9867ed
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