6533b853fe1ef96bd12aca3f
RESEARCH PRODUCT
Study of the Dielectric Properties of Europium Doped Barium Titanate Ceramics by an Impedance Spectroscopy
A. KulińskaBarbara Garbarz-glosDorota SitkoW. BąkW. ŚMigaAnna KalvaneM. Antonovasubject
Materials scienceDopingchemistry.chemical_elementDielectricConductivityCondensed Matter PhysicsElectronic Optical and Magnetic MaterialsDielectric spectroscopychemistry.chemical_compoundchemistryvisual_artBarium titanatevisual_art.visual_art_mediumGrain boundaryCeramicComposite materialEuropiumdescription
The barium titanate (BaTiO3) and the BaTiO3 + 0.1wt.% Eu2O3 ceramics were prepared by a conventional ceramic method. The structural studies were carried out by means of an X-ray diffraction technique. The influence of the grains and the grain boundaries on the electrical properties was investigated using a impedance spectroscopy. This technique enables us to determine the values of grain and grain boundary resistance. The results show that the Eu doping leads to a significant reduction in the resistance value of the grains (˜105Ω) with respect to the pure BT ceramics (˜107Ω). The conductivity processes were determined from the Arrhenius behaviour of grain and grain boundary resistances.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2015-08-26 | Ferroelectrics |