Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference (한국전기전자재료학회:학술대회논문집)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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Ihe Electrical and Piezoelectric Characteristics of PZT-PSN ceramics added $MnO_2$

$MnO_2$가 첨가된 PZT-PSN압전세라믹의 압전 및 전기적특성 분석

  • 김성곤 (연세대학교 전기전자공학과) ;
  • 김철수 (연세대학교 전기전자공학과) ;
  • 박정호 (연세대학교 전기전자공학과) ;
  • 이상렬 (연세대학교 전기전자공학과)
  • Published : 2001.07.01
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Abstract

In this paper, we investigated the dielectric and piezoelectric properties of Pb(Sb, Nb)O$_3$-Pb(Zr, Ti)O$_3$ ceramic(PSN) for piezoelectric transformer and actuator etc. Effect of MnO$_2$ addition on the PSN ceramic was investigated. Anisotropic properties of electromechanical coupling factor and piezoelectric properties proved to be varied with amount of MnO$_2$ impurity and sintering temperature. The electromechanical coupling factor k$_{p}$ of 0.38 and the mechanical quality factor Q$_{m}$ of 1944 were obtained from the specimen with 0.4 wt% MnO$_2$ sintered at 115$0^{\circ}C$ addition. Experimental results indicated that the PSN ceramic with MnO$_2$ impurity can be effectively used for piezoelectric transformer and actuator.tor.

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