Title :
Dielectric and piezoelectric properties of PMW-PNN-PZT ceramics sintered at low temperature with high d33 piezoelectric coefficient
Author :
Oh, Young-Kwang ; Yoo, Juhyun ; Park, Min-Ho ; Hwang, Larkhoon
Author_Institution :
Dept. of Electr. Eng., Semyung Univ., Jechon, South Korea
Abstract :
In this In this study, in order to develop low-temperature sintering ceramics for haptic piezoelectric actuator, Pb(Mg, W)O3-Pb(Ni, Nb)O3-Pb(Zr, Ti)O3 (abbreviated as PMW-PNN-PZT) ceramics were fabricated using Li2CO3 and CaCO3 as sintering aids and their dielectric and piezoelectric properties were investigated with the amount of BiFeO3 (abbreviated as BF) substitution. PMW-PNN-PZT composition ceramics could be sintered up to 920□ by adding sintering aids. As the amount of BF substitution was increased, the density, electromechanical coupling factor(kp), dielectric constant(εr) and piezoelectric constant(d33) showed the maximum value at each of sintering temperature. At the sintering temperature of 920□, the electromechanical coupling factor(kp), dielectric constant(sr) and piezoelectric constant(d33) of 0.75 mol% substitution BF specimen showed the optimum values of 0.661, 2401 and 597 pC/N, respectively for piezoelectric haptic actuator application.
Keywords :
lead compounds; permittivity; piezoceramics; piezoelectricity; sintering; PMW-PNN-PZT ceramic sintering; Pb(MgW)O3-Pb(NiNb)O3-PZT; dielectric constant; dielectric properties; electromechanical coupling factor; haptic piezoelectric actuator; high d33 piezoelectric coefficient; piezoelectric constant; piezoelectric properties; sintering aid addition; sintering temperature; Ceramics; Dielectric constant; Haptic interfaces; Piezoelectric actuators; Temperature; Temperature sensors; BiFeO3; PMN-PNN-PZT; haptic piezoelectric actuator; low sintering temperature; piezoelectric properties;
Conference_Titel :
Applications of Ferroelectrics held jointly with 2012 European Conference on the Applications of Polar Dielectrics and 2012 International Symp Piezoresponse Force Microscopy and Nanoscale Phenomena in Polar Materials (ISAF/ECAPD/PFM), 2012 Intl Symp
Conference_Location :
Aveiro
Print_ISBN :
978-1-4673-2668-1
DOI :
10.1109/ISAF.2012.6297803
