Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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Electrical Properties of PNN-PMN-PZT ceramics for Rosen Type Transformer Applications

Rosen type 변압기 응용을 위한 PNN-PMN-PZT 세라믹스의 전기적 특성

  • Joo, H.K. (Korea Electrotechnology Research Institute, Piezoelectric Device Research Group) ;
  • Kim, I.S. (Korea Electrotechnology Research Institute, Piezoelectric Device Research Group) ;
  • Song, J.S. (Korea Electrotechnology Research Institute, Piezoelectric Device Research Group) ;
  • Kim, M.S. (Korea Electrotechnology Research Institute, Piezoelectric Device Research Group) ;
  • Jeong, S.J. (Korea Electrotechnology Research Institute, Piezoelectric Device Research Group) ;
  • Lee, D.S. (Korea Electrotechnology Research Institute, Piezoelectric Device Research Group)
  • 주현규 (한국전기연구원, 재료응용연구단 압전소자연구그룹) ;
  • 김인성 (한국전기연구원, 재료응용연구단 압전소자연구그룹) ;
  • 송재성 (한국전기연구원, 재료응용연구단 압전소자연구그룹) ;
  • 김민수 (한국전기연구원, 재료응용연구단 압전소자연구그룹) ;
  • 정순종 (한국전기연구원, 재료응용연구단 압전소자연구그룹) ;
  • 이대수 (한국전기연구원, 재료응용연구단 압전소자연구그룹)
  • Published : 2008.07.16
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Abstract

Recently, piezoelectric transformer is applied to wide fields. Multi layer piezoelectric transformer has the advantage of high step up ratio, electromechanical coupling coefficient(Kp) and mechanical quality factor(Qm), but is indicated of peeling-phenomenon of electrode, rising sintering temperature made price of costly electrode. So in this study, it discuss on method for fabrication of rosen type piezoelectric transformers. For the fabrication as rosen type piezoelectric transformers, synthesized the powder using 0.01Pb$(ni_{1/3}Nb_{2/3})O_3$ - 0.08Pb$(Mn_{1/3}Nb_{2/3})O_3$ - 0.91Pb$(Zr_{0506}Ti_{0496})O_3$ (abbreviated as PNN-PMN-PZT) ceramics. The density, microstructure, dielectric and piezoelectric properties as a function of sintering temperature were investigated. The results indicated that the optimized properties of ceramics were obtained at sintering temperature of 1200$^{\circ}C$, showed the value of $d_{33}$=273pC/N, $K_p$=0.60 $Q_m$=1585, ${\varepsilon}_r$=1454, density=7.917$g/cm^3$ and $tan{\delta}$=0.0064.

Keywords