6533b824fe1ef96bd12808eb

RESEARCH PRODUCT

DIELECTRIC PROPERTIES OF LEAD-FREE [(1-x)(Na0.5Bi0.5)-xBa]Zr1−yTiyO3CERAMICS (x = 0.01, 0.06, 0.085, 0.09, 0.1 AND y = 0.96, 0.97)

K. KoniecznyG. StopaAnna KalvaneDariusz WcisłoMaija AntonovaIrena Jankowska-sumaraJan SuchaniczAndris SternbergT. GlosMaruta DambekalneW. Smiga

subject

Phase transitionMaterials scienceAnalytical chemistryMineralogySinteringDielectricLow frequencyCondensed Matter PhysicsHot pressingFerroelectricityElectronic Optical and Magnetic MaterialsIonControl and Systems Engineeringvisual_artMaterials ChemistryCeramics and Compositesvisual_art.visual_art_mediumCeramicElectrical and Electronic Engineering

description

ABSTRACT Lead-free ceramics based on (Na0.5Bi0.5TiO3, NBT)-(Ba(Ti, Zr)O3, BTZ) were prepared by solid phase synthesis and hot pressing sintering process and their dielectric properties have been studied. The obtained results were compared with these for pure NBT. The obtained samples show pure perovskite structure. Low frequency (100 Hz-100 kHz) investigations reveal the diffuse phase transitions and relaxorlike behaviour. The obtained results are discussed in terms of inhomogeneity of ions distribution, their ferro- and antiferroactivity and internal stresses. The NBT-BTZ system is expected to be a new promising candidate for lead-free electronic ceramics.

https://doi.org/10.1080/10584580802558092