Title :
Energy harvesting potential of lead free NBT-BZT piezoelectric ceramics
Author :
Akyurekli, Ayse Gul ; Gurbuz, Mevlut ; Gul, Malik Muhammad Usman ; Gulec, Hakan ; Dogan, Atakan
Author_Institution :
Dept. of Mater. Sci. & Eng., Anadolu Univ., Eskisehir, Turkey
Abstract :
Zr doped NBT-BZT(94Na0.5Bi0.5 TiO3-6BaZrxT1-xO3) (x=0.1) powder was synthesis with solid-state method. The sintering process was carried out at between 1035 to 1180°C in air for 2h. The crystal phase and microstructure of the ceramics were characterized using X-ray diffraction (XRD) and scanning electron microscopy (SEM). The influence of Zr content on the piezoelectric and energy harvesting performance were investigated and compared with PZT4, PZT5H. Ferroelectric and piezoelectric properties of NBT-BZT ceramics were obtained with impedance/gain phase analyzer. The results showed that, the best electrical properties were obtained at 1150°C. Also, energy harvesting potential of cymbal form of NBT-BZT materials were greater than disc (bulk) form.
Keywords :
X-ray diffraction; barium compounds; bismuth compounds; crystal microstructure; crystal structure; energy harvesting; ferroelectric ceramics; ferroelectricity; piezoceramics; piezoelectric transducers; piezoelectricity; scanning electron microscopy; sintering; sodium compounds; Na0.5Bi0.5TiO3-BaZrxTi1-xO3; PZT4; PZT5H; SEM; X-ray diffraction; XRD; crystal phase; electrical properties; energy harvesting; ferroelectric properties; gain phase analyzer; impedance analyzer; lead free NBT-BZT piezoelectric ceramics; microstructure; piezoelectric properties; powder; scanning electron microscopy; sintering; solid-state method; temperature 1035 degC to 1180 degC; time 2 h; Ceramics; Educational institutions; Energy harvesting; Force; Powders; Resistance; NBT-BZT; characterization; energy harvesting; sintering;
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.2014.6922958
