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无机材料学报

无机材料学报

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9Al2O3·2B2O3晶须补强PZT95/5型铁电相变陶瓷材料的研究

李晓晖; 林盛卫; 瞿翠凤; 姚春华; 金绮华   

  1. 中国科学院上海硅酸盐研究所; 上海200050
  • 收稿日期:1996-02-08 修回日期:1996-03-12 出版日期:1997-06-20 网络出版日期:1997-06-20

Study on Properties of 9Al2O3·2B2O3 Whisker Reinforced PZT95/5 Type Ferroelectric Transitional Ceramics

LI Xiaohui; LIN Shengwei; QU Cuifeng; YAO Chunhua; JIN Qihua   

  1. Shanghai Institute of Ceramics; Chinese Academy of Sciences Shanghai 200050 China
  • Received:1996-02-08 Revised:1996-03-12 Published:1997-06-20 Online:1997-06-20

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摘要： 本文采用9Al2O3·2B2O3晶须补强了PZT95／5型铁电相变陶瓷材料，研究了晶须添加量与材料的电性能和力学性能之间的关系，实验结果表明：（1）复合材料的最佳烧结温度随着添加含量的增加而降低．（2）适量的晶须添加对材料的特殊电性能无明显影响，而材料的力学性能有较明显的改善，例如含0．3wt％晶须的材料，其抗折强度比基料提高了42．24％．（3）品须的拔出，桥接对材料的增韧补强具有重要意义.

关键词: 晶须, 补强, PZT95／5, 力学性能, 电学性能

Abstract: 9Al2O3.2B2O3 whisker was used to reinforce PZT95/5 type ferroelectric transitional ceramics.The relation between properties (including electric and mechnical properties) and whisker contentwas studied. Experiment results indicate: (1) Sintering temperature ruduces with the increase ofwhisker content. (2) Composites with proper whisker content can keep electric properties almostas good as that of base material, while their mechanical properties improved. For exemple, thecomposite with 0.3wt% whisker exhibits an increase up to 42.24% in bending strength. (3) Whisker pulling and bridging play important roles in the process of reinforcing.

Key words: whisker, reinforce, PZT95/5, mechanical properties, electric properties