Please use this identifier to cite or link to this item: https://doi.org/10.15480/882.1863
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dc.contributor.authorMgbemere, Henry Ekene-
dc.contributor.authorSchneider, Gerold A.-
dc.date.accessioned2018-11-21T08:51:47Z-
dc.date.available2018-11-21T08:51:47Z-
dc.date.issued2016-01-07-
dc.identifier.citationJournal of Asian Ceramic Societies 1 (4): 97-101 (2016-03-01)de_DE
dc.identifier.issn2187-0764de_DE
dc.identifier.urihttp://tubdok.tub.tuhh.de/handle/11420/1866-
dc.description.abstractLead-free ferroelectric (K0.44Na0.52Li0.04)(Nb0.86Ta0.1Sb0.04)O3ceramics co-doped with different amounts of both La and Mn have been produced using solid-state synthesis method. The relative density values of the unmodified sample are between 92 and 96% and decreases to ~91% for the sample with 1 mol% of the co-doping. Bi-modal grain distribution is observed in the samples while the average grain size decreases with co-doping due to grain growth inhibition by pinning of the grain boundary movement. The diffraction patterns show a transformation from an orthorhombic phase to a pseudo-tetragonal phase with co-dopants addition. The Curie temperature and the tetragonal-orthorhombic transition temperatures are lowered from ~9000 at 330 °C without modification to ~4000 at temperatures below 250 °C with co-dopant addition. The dielectric loss values of the samples also decrease from ~0.4 to 0.05 for temperatures up to 250 °C with co-doping. The remnant polarisation Prof the samples decreases from ~8.55 kV/cm to ~6.57 kV/cm with co-dopant addition. The piezoelectric charge coefficient (d33), including the normalised strain values, also decrease from ~400 pm/V and 220 pC/N to 157 pm/V and 159 pC/N, respectively with co-dopants up to 1 mol%.en
dc.language.isoende_DE
dc.publisherElsevierde_DE
dc.relation.ispartofJournal of Asian ceramic societiesde_DE
dc.rightsinfo:eu-repo/semantics/openAccess-
dc.subjectferroelectricsde_DE
dc.subjectlead-free ceramicsde_DE
dc.subject(KxNa1−x)NbO3de_DE
dc.subjectdopantsde_DE
dc.subject.ddc620: Ingenieurwissenschaftende_DE
dc.titleEffect of La and Mn on the properties of alkaline niobate-based piezoelectric ceramicsde_DE
dc.typeArticlede_DE
dc.identifier.urnurn:nbn:de:gbv:830-882.023693-
dc.identifier.doi10.15480/882.1863-
dc.type.diniarticle-
dc.subject.ddccode620-
dcterms.DCMITypeText-
tuhh.identifier.urnurn:nbn:de:gbv:830-882.023693de_DE
tuhh.oai.showtrue-
dc.identifier.hdl11420/1866-
tuhh.abstract.englishLead-free ferroelectric (K0.44Na0.52Li0.04)(Nb0.86Ta0.1Sb0.04)O3ceramics co-doped with different amounts of both La and Mn have been produced using solid-state synthesis method. The relative density values of the unmodified sample are between 92 and 96% and decreases to ~91% for the sample with 1 mol% of the co-doping. Bi-modal grain distribution is observed in the samples while the average grain size decreases with co-doping due to grain growth inhibition by pinning of the grain boundary movement. The diffraction patterns show a transformation from an orthorhombic phase to a pseudo-tetragonal phase with co-dopants addition. The Curie temperature and the tetragonal-orthorhombic transition temperatures are lowered from ~9000 at 330 °C without modification to ~4000 at temperatures below 250 °C with co-dopant addition. The dielectric loss values of the samples also decrease from ~0.4 to 0.05 for temperatures up to 250 °C with co-doping. The remnant polarisation Prof the samples decreases from ~8.55 kV/cm to ~6.57 kV/cm with co-dopant addition. The piezoelectric charge coefficient (d33), including the normalised strain values, also decrease from ~400 pm/V and 220 pC/N to 157 pm/V and 159 pC/N, respectively with co-dopants up to 1 mol%.de_DE
tuhh.publisher.doi10.1016/j.jascer.2015.12.004-
tuhh.publication.instituteKeramische Hochleistungswerkstoffe M-9de_DE
tuhh.identifier.doi10.15480/882.1863-
tuhh.type.opus(wissenschaftlicher) Artikelde
tuhh.institute.germanKeramische Hochleistungswerkstoffe M-9de
tuhh.institute.englishKeramische Hochleistungswerkstoffe M-9de_DE
tuhh.gvk.hasppnfalse-
openaire.rightsinfo:eu-repo/semantics/openAccessde_DE
dc.type.driverarticle-
dc.rights.ccby-nc-ndde_DE
dc.rights.ccversion4.0de_DE
dc.type.casraiJournal Articleen
tuhh.container.issue1de_DE
tuhh.container.volume4de_DE
tuhh.container.startpage97de_DE
tuhh.container.endpage101de_DE
dc.rights.nationallicensefalsede_DE
item.fulltextWith Fulltext-
item.creatorOrcidMgbemere, Henry Ekene-
item.creatorOrcidSchneider, Gerold A.-
item.creatorGNDMgbemere, Henry Ekene-
item.creatorGNDSchneider, Gerold A.-
item.grantfulltextopen-
crisitem.author.deptKeramische Hochleistungswerkstoffe M-9-
crisitem.author.orcid0000-0001-5780-6249-
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