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Structural and Dielectric Properties of Eu3+, B3+ co-doped CoNb2O6 Ceramic

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dc.contributor.authorEKMEKÇİ, METE KAAN
dc.contributor.authorESMER, KADİR
dc.contributor.authorsİLHAN M., EKMEKÇİ M. K., ESMER K.
dc.date.accessioned2024-04-16T12:20:09Z
dc.date.available2024-04-16T12:20:09Z
dc.date.issued2024-04-01
dc.description.abstractThe boron co-doped CoNb2O6:xEu3+, yB3+ (x=1, 3, 6, 9, 12 mol%, y=10 mol%) ceramics were obtained by the molten salt method, which has advantageous properties such as short reaction time, low sintering temperature, improved homogeneity, and crystallinity. The ceramic samples were examined by structural and dielectric analyses. In X-ray diffractions, the orthorhombic columbite type CoNb2O6 structure was obtained, and also a minor EuNbO4 phase was detected with increasing Eu3+ doping concentrations. Additionally, increasing Eu3+ concentration led to a slight increase in crystallite size, and two theta peak shifts occurred towards higher angles associated with shrinkage in the lattice or reduction in the lattice constant. In SEM examinations, a slight increase was observed in grain sizes from 1 to 9 mol% Eu3+ in the range of 1-30 m, while some decrease occurred in grain sizes at 12 mol%, and there was an evident increase in plate-shaped and elongated grains. The dielectric constant (ε') of the ceramic samples increased with increasing Eu3+ concentration and reached approximately 35 and 0.24 at 20 Hz for 9 mol% Eu3+, respectively. The increase in dielectric loss with increasing Eu3+ was associated with an increase in ionic conductivity, in which Eu3+ substitution does not suppress oxygen vacancies or make them more ordered.
dc.identifier.citationİLHAN M., EKMEKÇİ M. K., ESMER K., "Structural and Dielectric Properties of Eu3+, B3+ co-doped CoNb2O6 Ceramic", Journal of the Turkish Chemical Society, Section A: Chemistry, cilt.11, sa.2, ss.765-774, 2024
dc.identifier.doi10.18596/jotcsa.1397311
dc.identifier.endpage774
dc.identifier.issn2149-0120
dc.identifier.issue2
dc.identifier.startpage765
dc.identifier.urihttps://dergipark.org.tr/en/pub/jotcsa/issue/82621/1397311
dc.identifier.urihttps://hdl.handle.net/11424/296605
dc.identifier.volume11
dc.language.isoeng
dc.relation.ispartofJournal of the Turkish Chemical Society, Section A: Chemistry
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectCoNb2O6
dc.subjectXRD
dc.subjectSEM
dc.subjectEu3+ doping
dc.subjectdielectric properties
dc.titleStructural and Dielectric Properties of Eu3+, B3+ co-doped CoNb2O6 Ceramic
dc.typearticle
dspace.entity.typePublication
local.avesis.idae7bae0b-7458-4138-94f3-3c6b161a477c
relation.isAuthorOfPublication1b465aa8-2bdf-4862-874e-a0df258d864f
relation.isAuthorOfPublicationd99fd053-3197-4952-a179-27dfb16cbe0d
relation.isAuthorOfPublication.latestForDiscovery1b465aa8-2bdf-4862-874e-a0df258d864f

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