无机材料学报

• 研究论文 • 上一篇    下一篇

铌镁酸铅-钛酸铅陶瓷介电与压电性能的研究

陈辛尘; 王评初; 潘晓明; 霍翠凤; 殷之文   

  1. 中国科学院上海硅酸盐研究所, 上海 200050
  • 收稿日期:1999-03-18 修回日期:1999-06-08 出版日期:2000-02-20 网络出版日期:2000-02-20

Piezoelectric Properties of PMN-PT Ceramics Near Morphotropic Phase Boundary

CHEN Xin-Chen; WANG Ping-Chu; PAN Xiao-Ming; QU Cui-Feng; YIN Zhi-Wen   

  1. Shanghai Institute of Ceramics; Chinese Academy of Sciences; Shanghai 200050; China)
  • Received:1999-03-18 Revised:1999-06-08 Published:2000-02-20 Online:2000-02-20

摘要: 用二步合成法制备了(1-)Pb(Mg1/3Nb2/3)OPbTiO原料,并制成了纯钙钛矿结构压电陶瓷.研究了三方-四方相界附近组份(=0.25~0.40)及工艺与性能的关系.结果表明,在x=0.32~0.35间材料具有较大的介电常数,压电常数,耦合系数以及较低的品质因数.材料以1200℃附近保温150min为佳.材料性能表明,有希望成为新型压电陶瓷.

关键词: 铌镁酸铅, Pb(Mg1/3Nb2/3)OPbTiO, 压电性

Abstract: (1 - x)Pb(Mg1/3Nb2/3)O3-xPbTiO3 (PMN-PT) ceramics with x near morphotropicphase boundary (x=0.25~0.40) were prepared by Columbite technique. The influences of PT content and preparation process on dielectric, ferroelectric and piezoelectric properties were studied.The results show that ceramics with x between 0.32 and 0.35 possess higher dielectric constant,piezoelectric constant, coupling factor and lower mechanical figure of merite. The properties arecomparable to best soft PZT ceramics.

Key words: Pb(Mg1/3Nb2/3)O3-xPbTiO3 ceramics, piezoelectric Propertis

中图分类号: