6533b858fe1ef96bd12b57e9

RESEARCH PRODUCT

SINTERING OF LEAD-FREE (K0.5Na0.5)NbO3 BASED SOLID SOLUTION

M. DunceMaruta DambekalneVismants ZaulsAnatoly MishnovIlze SmeltereM. Livinsh

subject

Materials scienceDopingMineralogySinteringCrystal structureDielectricCondensed Matter PhysicsMicrostructurePiezoelectricityElectronic Optical and Magnetic MaterialsChemical engineeringControl and Systems Engineeringvisual_artMaterials ChemistryCeramics and Compositesvisual_art.visual_art_mediumCeramicElectrical and Electronic EngineeringSolid solution

description

ABSTRACT In this study lead-free solid solution (K0.5Na0.5)NbO3 was prepared, structure, dielectric parameters of ceramics were investigated. The doping of sintering aids did not affect the crystallographic structure of the ceramics significantly; all ceramic samples had a single-phase perovskite structure. Added elements CdO, ZnO, MnO2, V2O5 effectively decreased the sintering temperature of KNN by 50°–80°C. All sintering aids influenced sinterability, microstructure and dielectric properties of ceramics. Dielectric constant for doped samples increased from 6000 up to 8000; Pr = 15 μC/cm2, Ec = 9 kV/cm, d33 = 110 pC/N, kp = 0.38 and Qm = 190 for MnO2 doped samples.

yearjournalcountryeditionlanguage
2009-10-22Integrated Ferroelectrics
https://doi.org/10.1080/10584580903324063