Effects of ZnO on the piezoelectric properties of Pb (Mn1/3
Sb
2/3
)O
3
-Pb(Zr,Ti)O
3 Ceramics |
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| Authors: | M-S Yoon Y-M Kim S-Y Kweon T-W Hong Y-G Lee S-L Ryu I-H Kim H-J Kim S-C Ur |
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| Affiliation: | (1) Department of Materials Science and Engineering, Research Center for Sustainable Eco-Materials (ReSEM), Chungju National University, Chungbuk, 380-702, Korea;(2) Department of Materials Department, Corea Electronics Corporation (CEC), Chungbuk, 380-250, Korea;(3) Division of General Education, Chungju National University, Chungbuk, 380-702, Korea |
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| Abstract: | Perovskite-types 0.05Pb(Mn1/3Sb2/3)O2-0.95Pb- (Zr0.5Ti0.5)O3 (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/cm3 was obtained when sintered at 1200∘C for 2 h. Piezoelectric properties as a function of ZnO content were evaluated using a gain phase analyzer. Piezoelectric
charge constant (d
31) and piezoelectric voltage output coefficient (g
31) increased up to −130 pC/N and −24.9 × 103Vm/N, respectively, with increasing ZnO content. Mechanical quality factor (Q
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
p) and relative dielectric constant (ε33
T
/εo) reached to the maximum of 56% and 1727, respectively. |
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| Keywords: | PMS-PZT Piezoelectric ZnO doping |
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