Title :
Effects of ZrO2 spheroids in PZT on piezoelectric properties
Author :
Sugihara, Sunao ; Fujita, Masaki
Author_Institution :
Dept. of Mater. Sci. & Ceramic Technol., Shonan Inst. of Technol., Fujisawa, Japan
Abstract :
The zirconia (YTZ) spheroids were mixed with Pb(Zr,Ti)O3, where the system forms the diphasic compound in the different sense of porous PZT. The diameter of spheroid was 0.3 mm and the amount of 2, 5, 10, 20 and 30 mol% were examined in the system. The relative permittivity reduced increasing the amount of spheroids which existed in the matrix of Pb(Zr,T)O3 without chemical reaction. The depolarizing factor increased in the steeper slope in the porosity more than 0.14. Moreover, the frequency dependences of impedance were also discussed and the microstructure and strain were reported as well
Keywords :
dielectric depolarisation; lead compounds; permittivity; piezoceramics; porous materials; zirconium compounds; PZT; PZT-ZrO2; PbZrO3TiO3-ZrO2; YTZ zirconia spheroids; depolarizing factor; diphasic compound; impedance; microstructure; permittivity; piezoelectric properties; porosity; strain; Capacitive sensors; Dielectric constant; Dielectric measurements; Permittivity; Powders; Shape; Solvents; Strain measurement; Titanium; X-ray scattering;
Conference_Titel :
Applications of Ferroelectrics, 1996. ISAF '96., Proceedings of the Tenth IEEE International Symposium on
Conference_Location :
East Brunswick, NJ
Print_ISBN :
0-7803-3355-1
DOI :
10.1109/ISAF.1996.598179
