6533b7d9fe1ef96bd126c0b3
RESEARCH PRODUCT
Dielectric Properties of Na0.5K0.5(Nb1-xSbx)O3+MnO2 Ceramics (x = 0.04, 0.05 and 0.06)
M. SokolowskiAndris SternbergKrzysztof PytelJ. SuchaniczMaija AntonovaK. KoniecznyA. FinderR. Bujakiewicz-korońskaBarbara Garbarz-glosIrena Jankowska-sumaraIlze Smelteresubject
Phase transitionMaterials scienceDopingMineralogySinteringDielectricCondensed Matter PhysicsHot pressingMicrostructureGrain sizeElectronic Optical and Magnetic MaterialsControl and Systems Engineeringvisual_artMaterials ChemistryCeramics and Compositesvisual_art.visual_art_mediumCeramicElectrical and Electronic EngineeringComposite materialdescription
Lead-free ceramics Na0.5K0.5(Nb1-xSbx)O3+0.5mol%MnO2 (x = 0.04, 0.05 and 0.06) were prepared by conventional sintering and hot pressing process; their microstructure and dielectric properties have been studied. It is found that increase of sintering temperature promotes the obtaining highly dense microstructure and increase in grain size while doping with Sb contributes to more dense and homogeneous microstructure and smaller grain size. Low frequency (100 Hz-200 kHz) investigations revealed the diffuse phase transitions. It can be concluded from experimental results that Sb doping improves dielectric properties. The obtained materials are expected to be promising candidates for lead-free electronic ceramics.
year | journal | country | edition | language |
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2011-01-01 | Integrated Ferroelectrics |