Low-Temperature Sintering and Piezoelectric Properties of PMN-PZT Ceramics

PMN-PZT세라믹스의 저온소결 및 압전특성

  • 이동균 (건국대학교 전기공학과) ;
  • 신효순 (한국과학기술연구원 박막기술연구센터) ;
  • 윤석진 (한국과학기술연구원 박막기술연구센터) ;
  • 김현재 (한국과학기술연구원 박막기술연구센터) ;
  • 한득영 (건국대학교 전기공학과)
  • Published : 1999.05.01

Abstract

With the variation of the sintering temperature and the amounts of B$_2$O$_3$, Bi$_3$O$_3$ and V$_2$O$_{5}$ , the densification and the piezoelectric properties of the MnO$_2$-doped PMN-PZT were investigated. The additives decreased the sintering temperature of ceramics. In the case of 0.5wt% B$_2$O$_3$, the sintering density, the mechanical quality factor, the electromechanical coupling factor and the piezoelectric constant were 7.51 (g/㎤), 1397, 51.1% and 305 (X10$^{-12}$ C/N) respectivly at 105$0^{\circ}C$. And the addition of lwt% Bi$_2$O$_3$, they were 7.59 (g/㎤) ,833,49.8% and 308 (X10$^{-12}$ C/N) respectivly at 1000 $^{\circ}C$.

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