6533b820fe1ef96bd12798de
RESEARCH PRODUCT
Electrical Transport Properties of Lead−Free (Na0.5Bi0.5)1-xBaxZr0.04Ti0.96O3Ceramics (x = 0.06, 0.085, 0.1)
A. FinderMaija AntonovaK. KoniecznyAndris SternbergJan SuchaniczKrzysztof PytelG. Stopasubject
Materials scienceCondensed matter physicsSinteringLow frequencyCondensed Matter PhysicsHot pressingFerroelectricityPower lawElectronic Optical and Magnetic MaterialsElectrical resistivity and conductivityvisual_artPhase (matter)visual_art.visual_art_mediumCeramicdescription
Lead-free ceramics (Na0.5Bi0.5)1-xBaxZr0.04Ti0.96O3 were prepared by solid phase hot pressing sintering process. Density values of obtained samples are higher than 95% of the theoretical ones. Samples with x = 0.06, 0.085 and 0.1 were investigated in the present work. For these samples both ac and dc electric conductivity were studied. A low frequency (100 Hz-100 kHz) ac conductivity obeys the power law, characteristic for disordered materials. The dc conductivity has a thermally activated character. A barrier hopping model is found to explain the mechanism of charge transport in these materials. The (Na0.5Bi0.5)1-xBaxZr0.04Ti0.96O3 system is expected to be a new and promising candidate for the lead−free electronic ceramics.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2011-01-01 | Ferroelectrics |