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无机材料学报

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机械合金化制备PLZT(5/54/46)陶瓷

彭青松1; 江莞1; 王刚1; 李敬锋2   

  1. 1. 中国科学院上海硅酸盐研究所高性能陶瓷和超微结构国家重点实验室, 上海 200050; 2. 清华大学材料系, 北京 100084
  • 收稿日期:2003-09-20 修回日期:2003-12-10 出版日期:2004-09-20 网络出版日期:2004-09-20

Preparation of PLZT Ceramics via Mechanical Alloying

PENG Qing-Song1; JIANG Wan1; WANG Gang1; LI Jing-Feng2   

  1. 1.Shanghai Institute of Ceramics; Chinese Academy of Sciences; Shanghai 200050; China; 2. Tsinghua University; Beijing 100084; China
  • Received:2003-09-20 Revised:2003-12-10 Published:2004-09-20 Online:2004-09-20

PDF (PC)

1128

被引次数

6

摘要： 研究了机械合金化制备PLZT陶瓷.实验结果表明,采用纳米TiO2原料,球磨5h就能得到PLZT粉体,而采用微米TiO2原料,球磨30h也只有少量的PLZT出现.可见纳米粉体在机械合金化制备PLZT粉体过程中起了重要的作用.机械合金化制备的PLZT粉体具有很好的烧结性能,在1000℃的烧结条件下可以得到致密度达97％的PLZT陶瓷,并且所得PLZT陶瓷的压电性能和铁电性能与其它文献报道的相当.这为实现铁电陶瓷与电极低温共烧打下了基础.

关键词: 纳米, 机械合金化, 高能球磨, PLZT陶瓷

Abstract: The preparation of PLZT ceramics $via$ mechanical alloying was studied. The result shows that PLZT powders can
be synthesized via high energy ball milling for 5h with nano-TiO2 powders, while only very weak PLZT peak can be found from the XRD pattern of the oxide
mixtures milled for 30 h without nano-TiO2 powders. So nano TiO2 particles are very important to synthesize PLZT powders via mechanical alloying. High density
PLZT ceramics were obtained by using the ball milled powders by sintering from 1000 to 1200℃. Piezoelectric and ferroelectric measurement results of the sintered PLZT ceramics were
comparable with the values reported in the literature for the same composition.

Key words: nano, mechanical alloying, high energy ball milling, PLZT ceramics

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