Effects of ZnO on the piezoelectric properties of Pb (Mn1/3 Sb 2/3 )O 3 -Pb(Zr,Ti)O 3 Ceramics

• Published in: Journal of electroceramics 2006-12, Vol.17 (2-4), p.635-637
• Main Authors: Yoon, M.-S., Kim, Y.-M., Kweon, S.-Y., Hong, T.-W., Lee, Y.-G., Ryu, S.-L., Kim, I.-H., Kim, H.-J., Ur, S.-C.
• Format: Article
• Language: English
• ISSN: 1385-3449; 1573-8663
• DOI: 10.1007/s10832-006-9691-9

Issue Title: Special Issue: ICE-2005 International Conference on Electroceramics Perovskite-types 0.05Pb(Mn^sub 1/3^Sb^sub 2/3^)O^sub 2^-0.95Pb- (Zr^sub 0.5^Ti^sub 0.5^)O^sub 3^ (PMS-PZT) was synthesized by conventional bulk ceramic processing technique. ZnO as a dopant up to 0.5 mol% was incorporated into the PMS-PZT system, and the effects on piezoelectric properties were investigated. Pyrochlore phase was not detected to form during the synthesis of the PMS-PZT system with 0-0.5 mol% ZnO addition. The highest density of 7.92 g/cm^sup 3^ was obtained when sintered at 1200^sup ^C for 2 h. Piezoelectric properties as a function of ZnO content were evaluated using a gain phase analyzer. Piezoelectric charge constant (d ^sub 31^) and piezoelectric voltage output coefficient (g ^sub 31^) increased up to -130 pC/N and -24.9 × 10^sup 3^Vm/N, respectively, with increasing ZnO content. Mechanical quality factor (Q ^sub m^) was shown to reduce considerably with increasing ZnO content. When 0.3 mol% of ZnO was added into the system, electromechanical coupling factor (k ^sub p^) and relative dielectric constant (ε^sub 33^ ^sup T^/ε^sub o^) reached to the maximum of 56% and 1727, respectively.[PUBLICATION ABSTRACT]