$Pb(Mg_{1/2}W_{1/2})O_3-Pb(Ni_{1/3}Nb_{2/3})O_3-PbTiO_3-PbZrO_3$계 세라믹스의 유전 및 압전 특성

Dielectric and Piezoelectric Characteristics of Ceramics in the $Pb(Mg_{1/2}W_{1/2})O_3-Pb(Ni_{1/3}Nb_{2/3})O_3-PbTiO_3-PbZrO_3$ system

  • 김우현 (연세대학교 전기공학과) ;
  • 윤광희 (연세대학교 전기공학과) ;
  • 윤현상 (연세대학교 전기공학과) ;
  • 박용욱 (연세대학교 전기공학과) ;
  • 박창엽 (연세대학교 전기공학과)
  • 발행 : 1994.11.18

초록

In this study, the structural, dielectric and piezoelectrical properties of $xPb(Mg_{1/2}W_{1/2})O_3-(1-x)[0.41Pb(Ni_{1/3}Nb_{2/3})O_3-0.36PbTiO_3-0.23P Zr)_3]$ (x=0, 0.01, 0.02, 0.03, 0.04, 0.05) system ceramics were investigated. The dielectric constant ${\varepsilon_{33}}^{\tau}$ at loon temperature increased up to 3mol% PMW and decreased with further PMW content. The specimen with 1mol% $Pb(Mg_{1/2}W_{1/2})O_3$, which has the ${\varepsilon_{33}}^{\tau}=5509$, kp=59[%] and $d_{33}=758{\times}10^{-12}[C/N]$, exhibits good characteristics.

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