대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)

대한전기학회 (The Korean Institute of Electrical Engineers)
권호 표지

xPb$(Al_{1/2}Ta_{1/2})O_3$-(1-x)Pb$(Zro_{0.52}Ti_{0.48})O_3$ 세라믹스의 유전 및 압전특성에 관한 연구

A Study on the Dielectric and the Piezoelectric Properties of xPb$(Al_{1/2}Ta_{1/2})O_3$-(1-x)Pb$(Zro_{0.52}Ti_{0.48})O_3$ Ceramics

  • 강도원 (창원대학교 전기공학과) ;
  • 김태열 (창원대학교 전기공학과) ;
  • 오재유 (창원대학교 전기공학과) ;
  • 오의균 (창원대학교 전기공학과) ;
  • 김석수 (한국전기연구소 전력시험실) ;
  • 김범진 (창원대학교 전기공학과) ;
  • 김명호 (창원대학교 세라믹공학과) ;
  • 박태곤 (창원대학교 전기공학과)
  • 발행 : 1999.07.19
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초록

Dielectric and piezoelectric properties of xPb$(Al_{1/2}Ta_{1/2})O_3$-(1-x)Pb$(Zro_{0.52}Ti_{0.48})O_3$ system were investigated. The highest density of $7.80g/cm^3$ for PAT-PZT ceramics of 5mol% PAT was obtained. The relative permittivity of PAT-PZT ceramics of 5mol% PAT was 1.642 at room temperature. The maximum value of electromechanical coupling factor $k_p$ of 55% and $k_t$ of 33% were obtained at the composition of 5mol% PAT. The grain sizes were reduced by increasing the amount of PAT, however mechanical quality factor$(Q_m)$ had a minimum value of 44 at the composition of 5mol% PAT.

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