TY - GEN
T1 - Characterizations of Nb2O5 modified PZT piezoelectric ceramics and feasibility study for acoustic sensor
AU - Chen, Bing Huei
AU - Wu, Long
AU - Wang, Jia Bin
AU - Su, Ching Chou
AU - Tai, C. C.
AU - Chen, J. F.
PY - 2010
Y1 - 2010
N2 - The aim of this report is to improve piezoelectric properties of Pb(Zr,Ti)O3 ceramics with a composition Zr/Ti=53/47 prepared by the conventional ceramic technology through a simple, yet effective method by addition of 1 mole% Nb-doped as a donor element. Replacement of Ti+4 by Nb+5 in such perovskite type solid solutions was accomplished by the creation of cation vacancies. The dependence of sintering effects on microstructure and ferroelectric characteristics were surveyed. From the analysis results, the PZT bulk ceramic grains distribution were found to be uniform, the sample was found to possess well-piezoelectric properties. Calcined at 850C/2h and sintered at 1280C/2h, the PZT ceramics had the minimum value of dielectric loss D=0.0151, mechanical quality factor Qm=105 and exhibited maximum electromechanical coupling factor kp=0.65. It was noted that the fundamental resonance frequency was around 200 KHz. Through the analyses of the study, we found an extremely good processing conditions and obtained well-performed piezoelectric properties and piezoelectric response suitable for piezoelectric applications, like resonator, actuator, sensor, filter et al. These in turn can serve as detecting devices with a wide range of was also evaluated. Finally, an acoustic sensor developing for non-destructive application would be our major issue for further investigation.
AB - The aim of this report is to improve piezoelectric properties of Pb(Zr,Ti)O3 ceramics with a composition Zr/Ti=53/47 prepared by the conventional ceramic technology through a simple, yet effective method by addition of 1 mole% Nb-doped as a donor element. Replacement of Ti+4 by Nb+5 in such perovskite type solid solutions was accomplished by the creation of cation vacancies. The dependence of sintering effects on microstructure and ferroelectric characteristics were surveyed. From the analysis results, the PZT bulk ceramic grains distribution were found to be uniform, the sample was found to possess well-piezoelectric properties. Calcined at 850C/2h and sintered at 1280C/2h, the PZT ceramics had the minimum value of dielectric loss D=0.0151, mechanical quality factor Qm=105 and exhibited maximum electromechanical coupling factor kp=0.65. It was noted that the fundamental resonance frequency was around 200 KHz. Through the analyses of the study, we found an extremely good processing conditions and obtained well-performed piezoelectric properties and piezoelectric response suitable for piezoelectric applications, like resonator, actuator, sensor, filter et al. These in turn can serve as detecting devices with a wide range of was also evaluated. Finally, an acoustic sensor developing for non-destructive application would be our major issue for further investigation.
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U2 - 10.1109/SPAWDA.2010.5744307
DO - 10.1109/SPAWDA.2010.5744307
M3 - Conference contribution
AN - SCOPUS:79955776533
SN - 9781424498208
T3 - Proceedings of the 2010 Symposium on Piezoelectricity, Acoustic Waves and Device Applications, SPAWDA10
SP - 217
EP - 220
BT - Proceedings of the 2010 Symposium on Piezoelectricity, Acoustic Waves and Device Applications, SPAWDA10
T2 - 2010 Symposium on Piezoelectricity, Acoustic Waves and Device Applications, SPAWDA10
Y2 - 10 December 2010 through 13 December 2010
ER -