Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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The Piezoelectric and Electrical Characteristics of PZT-PSN Ceramics Added $WO_3$

$WO_3$첨가하여 PZT-PSN압전세라믹의 압전 및 전기적특성 연구

  • Kim, Seong-Kon (Department of Electrical and Electronic Engineering Yonsei University) ;
  • Kim, Cheol-Su (Department of Electrical and Electronic Engineering Yonsei University) ;
  • Park, Jeong-Ho (Department of Electrical and Electronic Engineering Yonsei University) ;
  • Lee, Sang-Yeol (Department of Electrical and Electronic Engineering Yonsei University)
  • 김성곤 (연세대학교 전기전자공학과) ;
  • 김철수 (연세대학교 전기전자공학과) ;
  • 박정호 (연세대학교 전기전자공학과) ;
  • 이상렬 (연세대학교 전기전자공학과)
  • Published : 2001.11.03
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Abstract

In this paper, we investigated the electrical and piezoelectric characteristics of $Pb(Sb,Nb)O_3-Pb(Zr,Ti)O_3$ for piezoelectric transformer and actuator etc. Effect of $WO_3$ addition($0\;wt%{\sim}0.6\;wt%$) on the PSN-PZT ceramic was investigated. Anisotropic properties of electromechanical coupling factor and piezoelectric properties were proved to be varied with amount of $WO_3$ impurity and sintering temperature($1100{\sim}1300^{\circ}C$). The electromechanical coupling factor $k_p$ of 0.41 and the mechanical quality factor am of 1243 were obtained from the specimen with 0.6 wt% $WO_3$ addition sintered at $1100^{\circ}C$ Experimental results indicated that the PZT-PSN ceramics with $WO_3$ impurity can be effectively used for piezoelectric transformer and actuator. etc.

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