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http://dx.doi.org/10.4313/JKEM.2008.21.3.227

Piezoelectric and Dielectric Properties of Low Temperature Sintering Pb(Zn1/2W1/2)O3-Pb(Mn1/2Nb2/3)O3-Pb(Zr0.48Ti0.52)O3 Ceramics Manufactured by Post-annealing Method  

Yoo, Ju-Hyun (세명대학교 전기공학과)
Lee, Kab-Soo (세명대학교 전기공학과)
Publication Information
Journal of the Korean Institute of Electrical and Electronic Material Engineers / v.21, no.3, 2008 , pp. 227-231 More about this Journal
Abstract
In this study, in order to improve the electrical properties of low temperature sintering piezoelectric ceramics, $[0.05Pb(Zn_{1/2}W_{1/2})-0.07Pb(Mn_{1/3}Nb_{2/3})-0.088Pb(Zr_{0.48}Ti_{0.52})]O_3$(abbreviated as PZW-PMN-PZT) ceramic systems were fabricated using $Bi_2O_3$, CuO and $Li_2CO_3$ as sintering aids and then their piezoelectric and dielectric properties were investigated according to the amount of $Li_2CO_3$ and post-annealing process. Post-annealing process enhanced all physical properties except for mechanical quality factor (Qm). 0.2 wt% $Li_2CO_3$ added and post-annealed specimen showed the excellent values suitable for low loss piezoelectric actuator application as follow: the density = 7.86 $g/cm^3$ electromechanical coupling factor (kp) = 0.575, piezoelectric constant $d_{33}$ = 370 pC/N, dielectric constant ($\varepsilon_r$) = 1546, and mechanical quality factor (Qm) = 1161, respectively.
Keywords
Piezoelectric actuator; Post-annealing; Electromechanical coupling factor; Mechanical quality factor;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
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