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RESEARCH PRODUCT
Effect of Variable Valence Ion Doping on the Dielectric Properties of BaTiO3–Based Materials
C. KajtochW. BakKrystyna Wieczorek-ciurowaBarbara Garbarz-glosDorota SitkoIlze SmelterePiotr Duliansubject
Phase transitionValence (chemistry)Materials scienceAnalytical chemistryDielectricAtmospheric temperature rangeCondensed Matter PhysicsElectronic Optical and Magnetic MaterialsIonvisual_artvisual_art.visual_art_mediumCeramicCrystalliteThermal analysisdescription
Dielectric properties of BaTiO3, BaTiO3 + 0.1 wt.% Fe2O3 and BaTiO3 + 1 wt.% Fe2O3 ceramics were studied. The dielectric measurements were performed at the temperature ranging from 130 K to 500 K and at the frequency ranging from 0.1 Hz to 10 MHz. Phase transitions were also determined by a thermal analysis in a wide temperature range. Both thermal analysis and electrical characterization techniques show that the temperature of phase transition is shifted towards lower temperatures with increasing Fe2O3 content. The changes and diversity of the observed phase transition temperatures occurred as a consequence of the ion substitution. Such behaviour of the investigated polycrystalline materials may be due to the multivalence nature of the incorporated ions.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2014-05-01 | Ferroelectrics |