L $u_2$ $O_3$ 치환에 따른 Pb(Sb,Mn) $O_3$-Pb(Zr,Ti) $O_3$ 세라믹스의 압전특성

Piezoelectric properties of Pb(Sb,Mn) $O_3$- Pb(Zr,Ti) $O_3$ Ceramics doped L $u_2$ $O_3$

  • 이동균 (한국과학기술연구원 박막기술연구센터) ;
  • 윤석진 (한국과학기술연구원 박막기술연구센터) ;
  • ;
  • 김현재 (한국과학기술연구원 박막기술연구센터) ;
  • 한득영 (건국대학교 전기공학과)
  • 발행 : 1997.11.01

초록

Dieletric ailed piezoelectric properties of Pb[$Zr_{0.45}$/ $Ti_{0.5-x}$/L $u_{x}$ (M $n_{1}$3//S $b_{2}$3)$_{0.05}$] $O_3$(0$\leq$x $\leq$0.03) were investigated. The partial substitution of $Ti^{4+}$ by a L $u^{3+}$ permitted improvement of the piezoelectric constant( $d_{33}$ ), electromechanical coupling factor ( $k_{p}$ ) and dielectric constant($\varepsilon$$_{33}$ /Sup T/). The dielectric loss(tan $\delta$ ) increased and mechanical quality factor(Qm) decreased with an increase of x were observed. A new piezoelectric material for actuator application was developed at x=0.02 with $d_{33}$ =370$\times$10$^{-2}$ /C/N, $k_{p}$ =58.5%, $\varepsilon$$_{33}$ $^{T}$ =1321, $Q_{m}$ =714 and tan $\delta$ =0.98%.%..%.%.

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