A high-temperature-capacitor dielectric based on K0.5Na0.5NbO3-Modified Bi1/2Na1/2TiO3–Bi1/2K1/2TiO3

dc.contributor.authorDittmer, Ren_AU
dc.contributor.authorAnton, EMen_AU
dc.contributor.authorJo, Wen_AU
dc.contributor.authorSimons, Hen_AU
dc.contributor.authorDaniels, JEen_AU
dc.contributor.authorHoffman, Men_AU
dc.contributor.authorPokorny, Jen_AU
dc.contributor.authorReaney, IMen_AU
dc.contributor.authorRödel, Jen_AU
dc.date.accessioned2014-04-04T00:43:16Zen_AU
dc.date.available2014-04-04T00:43:16Zen_AU
dc.date.issued2012-11-01en_AU
dc.date.statistics2014-04-04en_AU
dc.description.abstractA high-temperature dielectric, (1–x)(0.6Bi1/2Na1/2TiO3–0.4Bi1/2K1/2TiO3)–xK0.5Na0.5NbO3, off the morphotropic phase boundary of the parent matrix 0.8Bi1/2Na1/2TiO3–0.2Bi1/2K1/2TiO3, has been developed for application as a high-temperature capacitor. In addition to temperature-dependent permittivity and dielectric loss, DC conductivity and field-dependent permittivity are reported. These properties are correlated with temperature-dependent structure data measured at different length scales using Raman spectroscopy and neutron diffraction. It is suggested that all materials investigated are ergodic relaxors with two types of polar nanoregions providing different relaxation mechanisms. The most attractive properties for application as high-temperature dielectrics are obtained in a material with x = 0.15 at less than 10% variation of relative permittivity of about 2100 between 54°C and 400°C. © 2012, Wiley-Blackwell.en_AU
dc.identifier.citationDittmer, R., Anton, E. M., Jo, W., Simons, H., Daniels, J. E., Hoffman, M., Pokorny, J., Reaney, I. M., & Rödel, J. (2012). A high-temperature-capacitor dielectric based on K0.5Na0.5NbO3-modified Bi1/2Na1/2TiO3–Bi1/2K1/2TiO3. Journal of the American Ceramic Society, 95(11), 3519-3524. doi:10.1111/j.1551-2916.2012.05321.xen_AU
dc.identifier.govdoc4759en_AU
dc.identifier.issn0002-7820en_AU
dc.identifier.issue11en_AU
dc.identifier.journaltitleJournal of the American Ceramic Societyen_AU
dc.identifier.pagination3519-3524en_AU
dc.identifier.urihttp://dx.doi.org/10.1111/j.1551-2916.2012.05321.xen_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/5401en_AU
dc.identifier.volume95en_AU
dc.language.isoenen_AU
dc.publisherWiley-Blackwellen_AU
dc.subjectLeaden_AU
dc.subjectPZTen_AU
dc.subjectFerrimagnetic materialsen_AU
dc.subjectDielectric materialsen_AU
dc.subjectCeramicsen_AU
dc.subjectRaman spectroscopyen_AU
dc.subjectLanthanumen_AU
dc.subjectElectric conductivityen_AU
dc.titleA high-temperature-capacitor dielectric based on K0.5Na0.5NbO3-Modified Bi1/2Na1/2TiO3–Bi1/2K1/2TiO3en_AU
dc.typeJournal Articleen_AU
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