Title :
Effect of the powder process type on dielectric and leakage current characteristics of flux grown 94NBT-6BT single crystals
Author :
Gurbuz, Mevlut ; Dogan, Atakan
Author_Institution :
Dept. of Mech. Eng., Ondokuz Mayis Univ., Samsun, Turkey
Abstract :
In this study, 94NBT-6BT single crystals were grown by flux growth method using uncalcined and calcined 94NBT-6BT powder. Crystal structures and chemical composition of grown crystals were characterized by X-ray diffraction (XRD), energy dispersive X-ray (EDX) and X-ray fluorescence (XRF) technique. Influences of the powder processing type on dielectric and leakage current properties of the grown single crystals were analyzed by impedance/gain phase analyzer, LCR meter, AIXACT (aixPES/CMA) piezoelectric and ferroelectric analyzer. The results showed that, single crystals which were produced by heat-treated powders gave better dielectric and leakage current properties than uncalcined single crystals.
Keywords :
X-ray chemical analysis; X-ray diffraction; X-ray emission spectra; X-ray fluorescence analysis; barium compounds; bismuth compounds; calcination; crystal growth from solution; crystal structure; dielectric losses; fluorescence; leakage currents; permittivity; piezoceramics; sodium compounds; 94NBT-6BT single crystals; AIXACT piezoelectric analyzer; EDX; LCR meter; Na0.5Bi0.5TiO3-BaTiO3; X-ray diffraction; X-ray fluorescence; XRD; XRF; calcination; chemical composition; crystal structure; dielectric characteristics; dielectric constant; dielectric loss; energy dispersive X-ray analysis; ferroelectric analyzer; flux growth method; heat treatment; impedance-gain phase analyzer; leakage current; powder processing type; Crystals; Dielectric constant; Dielectric losses; Leakage currents; Powders; 94NBT-6BT; dielectric; flux growth; leakage current; single crystal;
Conference_Titel :
Applications of Ferroelectrics, International Workshop on Acoustic Transduction Materials and Devices & Workshop on Piezoresponse Force Microscopy (ISAF/IWATMD/PFM), 2014 Joint IEEE International Symposium on the
Conference_Location :
State College, PA
DOI :
10.1109/ISAF.2014.6922976
