高等学校化学学报 ›› 1997, Vol. 18 ›› Issue (10): 1580.

• 论文 • 上一篇    下一篇

稀土改性钛酸铅微粉的水热合成及其性能研究

熊荣1, 程虎民1, 马季铭1, 陈守六2, 庄泳谬2, 张沛霖3, 钟维烈3   

  1. 1. 北京大学物理化学研究所, 北京 100871;
    2. 中国科学院声学研究所, 北京 100080;
    3. 山东大学物理系, 济南 250100
  • 收稿日期:1996-01-06 出版日期:1997-10-24 发布日期:1997-10-24
  • 通讯作者: 程虎民.
  • 作者简介:熊荣, 男, 26岁, 硕士.
  • 基金资助:

    国家高技术研究基金

A Study of Hydrothermal Synthesis and Properties of Rare Earth-modified PbTiO3 Fine Powders

XIONG Rong1, CHENG Hu-Min1, MA Ji-Ming1, CHEN Shou-Liu2, ZHUANG Yong-Qiu2, ZHANG Pei-Lin3, ZHONG Wei-Lie3   

  1. 1. Institute of Physical Chemistry, Peking University Beijing 100871;
    2. Institute of Acoustics, Academic Sinica, Beijing 100080
  • Received:1996-01-06 Online:1997-10-24 Published:1997-10-24

摘要: 用水热法合成了几种稀土(La,Pr,Nd,Sin,Eu)和锰掺杂改性的钛酸铅(PbTiO3,简称PT)陶瓷微粉.研究了掺La和Mn的PT固溶体的四方(铁电)相与立方(顺电)相之间的相变,掺杂La(x(La)=0.04)和Mn(y(Mn)=0.01)的PT固溶体的居里温度大约为400℃.测定了稀土掺杂量(x=0.04~0.08)与其压电性能之间的关系.随La掺杂量的增加,PT固溶体的d33增大,g33、Kt及机电耦合各向异性kt/kp值下降;其它稀土也有类似情况,

关键词: 钛酸铅, 水热合成, 压电陶瓷, 稀土, 固溶体

Abstract: Lead titanate ceramics fine powders modified with several rare earth (La, Pr, Nd,Sin, Eu) were prepared by hydrothermal method. The transformation between tetragonal(ferroelectric) phase and cubic (paraelectric) phase for the La-doped PbTiO3 solid solutionwas investigated. Curie' temperature of the PTsolid solution with x(La)=0. 04 and y(Mn)=0. 01 was ca. 400 ℃. The dependences between rare earth-doping content and piezoelectricproperties of PTsolid solutions were determined. The d33, increased, while g33, kt and kt/kpecreased with increasing rare earth-doping content in PTsolid solutions.

Key words: Lead titanate, Hydrothermal synthesis, Piezoelectric ceramics, Rare earth, Solid solution

中图分类号: 

TrendMD: