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无机材料学报

无机材料学报

• 研究论文 • 上一篇    下一篇

共沉淀法制备钛酸铋超细粉体

阚艳梅1; 靳喜海1; 王佩玲1; 李永祥1; 程一兵2   

  1. 1. 中国科学院上海硅酸盐研究所, 上海 200050; 2. 澳大利亚Monash大学物理与材料工程学院
  • 收稿日期:2001-02-15 修回日期:2001-03-13 出版日期:2002-01-20 网络出版日期:2002-01-20

Preparation of Ultrafine Bi4Ti3O12 Powder by Coprecipitation Methods

KAN Yan-Mei1; JIN Xi-Hai1; WANG Pei-Ling1; LI Yong-Xiang1; CHENG Yi-Bing2   

  1. 1.Shanghai Institute of Ceramics; Chinese Academy of Sciences; Shanghai 20050; China; 2. School of physics and Materials Engineering; Monash University; Clayton; Victoria; 3168; Australia
  • Received:2001-02-15 Revised:2001-03-13 Published:2002-01-20 Online:2002-01-20

PDF (PC)

902

被引次数

60

摘要： 通过共沉淀法制备了钛酸 超细粉体，并研究了其前驱体的晶化过程和粉体的烧结行为．研究结果表明该方法能够明显降低钛酸 的合成温度，在 ６００℃已能得到比表面积为 １２ｍ２／ｇ（粒度约为 １００ｎｍ）无团聚的高纯超细钛酸 粉体．该粉体具有较高的烧结活性，在９５０℃烧结即可致密化．

关键词: 钛酸铋, 共沉淀, 超细粉体, 烧结

Abstract: Ultrafine Bi4Ti3O12 powder was prepared by a coprecipitation method and its phase evolution process and sintering behavior were investigated. The
results show that the synthetic temperature of Bi4Ti3O12 is lowered significantly due to homogeneous mixing of Ti and Bi components in the
precursor mixture, and phase pure Bi4Ti3O12 powder can be produced after aging at 600℃. The powder obtained consists of irregular-shaped
particles of about 100nm and is nearly aggregate free. Dense Bi4Ti3O12 ceramics can be prepared at a considerably low temperature of 950℃,
indicating the high sinterability of the powder.

Key words: bismuth titanate, coprecipitation, ultrafine powder, sintering

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