Piezoelectric Properties of Pb0.98Bi0.02Zr0.51Ti0.48Zn0.01O3 Ceramics

• Published in: Jpn J Appl Phys 2011-02, Vol.50 (2), p.025802-025802-4
• Main Author: He, Wenze
• Format: Article
• Language: English
• ISSN: 0021-4922; 1347-4065
• DOI: 10.1143/JJAP.50.025802

On the basis of eutectic behavior of PbTiO 3 --PbZrO 3 --Bi(Zn 0.5 Ti 0.5 )O 3 ternary system, perovskite-structured Pb 0.98 Bi 0.02 Zr 0.51 Ti 0.48 Zn 0.01 O 3 ceramics were able to be prepared using conventional electronic ceramic processing at low sintering temperature compatible with Ag as inner electrode materials, promising for co-firing technology to fabricate monolithic multilayer piezoelectric transducers. The dependence of its piezoelectric properties on sintering temperature and various dopants were investigated experimentally and a piezoelectric property with dielectric constant of $\varepsilon_{33}^{T}/\varepsilon_{0}=1190$, dielectric loss of $\tan\delta=0.6$%, piezoelectric coefficient of $d_{33}=270$ pC/N, planar coupling coefficient of $k_{\text{p}}=0.54$, thickness coupling coefficient of $k_{\text{t}}=0.46$ and Curie temperature of $T_{\text{c}}=346$ °C was obtained for the 0.5% Co-doped Pb 0.98 Bi 0.02 Zr 0.51 Ti 0.48 Zn 0.01 O 3 ceramics sintered at 950 °C.