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Dielectric and Piezoelectric Characteristics of Low Temperature Sintering 0.20Pb(Zn1/3Nb2/3)O3-0.80Pb(Zr0.48Ti0.52)O3 Ceramics with the Addition of Sintering Aid ZnO

소결조제 ZnO 첨가에 따른 저온소결 0.20Pb(Zn1/3Nb2/3)O3-0.80Pb(Zr0.48Ti0.52)O3 세라믹스의 유전 및 압전특성

  • Published : 2008.02.01

Abstract

In this study, in order to develop low loss multilayer piezoelectric actuator, PZN-PZT ceramics were fabricated using $Li_2CO_3,\;Bi_2O_3$, CuO and ZnO as sintering aids, their structural, piezoelectric and dielectric characteristics were investigated according to the amount of ZnO addition, At the sintering temperature of $870^{\circ}C$, the density, electromechanical coupling factor(kp), mechanical quality factor(Qm), dielectric constant(${\epsilon}_r$) and piezoelectric constant($d_{33}$) of 0.4 wt% ZnO added specimen (sintered at $870^{\circ}C$) showed the optimum value of $7.812g/cm^3$, 0.535, 916, 1399, 335 pC/N respectively. Taking into consideration above piezoelectric properties of the specimen sintered at low temperature, it was concluded that PZN-PZT ceramics using 0.4 wt% ZnO as additive showed the optimum characteristics as the composition ceramics for low loss multilayer piezoelectric actuator application.

Keywords

References

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