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Acta Chimica Sinica ›› 2005, Vol. 63 ›› Issue (15): 1439-1443. Previous Articles     Next Articles

Original Articles

BST和BZT系列固溶体的均相沉淀法合成及表征

黄志良*1 2，汪奇林2， 张联盟1，许涛2，陈金民2， 梁邦兵2

  1. (1武汉理工大学材料复合新技术国家重点实验室 武汉 430070)
    (2武汉工程大学材料科学与工程学院 武汉 430073)
  • 投稿日期:2004-09-14 修回日期:2005-04-11 发布日期:2010-12-10
  • 通讯作者: 黄志良

Synthesis and Characterization of BST and BZT Solid Solutions through the Homogeneous Phase Precipitation Route

HUANG Zhi-Liang*1,2, WANG Qi-Lin2, ZHANG Lian-Meng1, XU Tao2, CHEN Jin-Min2, LIANG Bang-Bing2   

  1. (1 State Key Laboratory of Advanced Technology for Materials Synthesis and Processing,
    Wuhan University of Technology, Wuhan 430070)
    (2 Department of Material Science and Engineering, Wuhan Institute of Technology, Wuhan 430073)
  • Received:2004-09-14 Revised:2005-04-11 Published:2010-12-10
  • Contact: HUANG Zhi-Liang

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A series of Ba1－xSrxTiO3 (BST) and BaZrxTi1－xO3 (BZT) solid solutions have been synthesized through the homogeneous phase precipitation route at low temperature (90 ℃) under low pH (8～9) in a short time (3～3.5 h). Structure, composition and morphology of those solid solutions were studied respectively by XRD, chemical analysis, SEM and AFM methods. The results showed that the cell parameters of them were linearly related with the composition of them, which was in accord with Vegard's law, and the powders of them had mutual miscibility, spherical shape, uniform distribution and precision component. The role of the compound mineralizer to make the reaction system form a homogeneous phase and release hydroxyl, and the mechanism of the aggregation growth of the BST and BZT particles in solutions with dispersants, were discussed briefly in this paper.

Key words: homogeneous phase precipitation route, adulteration, BST or BZT solid solution