锆钛酸铅纳米陶瓷粉体的低温水热合成

Low Temperature Hydrothermal Synthesis of PZT Piezoelectricity Ceramics Powders

使用TiO2粉体、ZrOCl2·8H2O、Pb（NO3）2为原料，KOH为矿化剂，Pb／（Zr＋Ti）一1．0，在160℃下反应3h，获取了分散性较好的锆钛酸铅纳米粉体。用X-射线衍射仪、扫描电子显微镜等测试手段分析了实验结果，结果表明，所得锆钛酸铅纳米粉体颗粒为四方晶相钙钛矿结构，呈立方体状，粒子粒径为Ф0．5～2．0μm，同时分析了在本实验条件下锆钛酸铅纳米粉体可能的合成机理。

Lead zirconate-titanate（PZT） nano-powders ware synthesized with the proportion of Pb/（Zr＋Ti） 1.0 by a hydrothermal method based on the reaction of TiO2 powders, ZrOCl2·8H2O、Pb（NO3）2, and KOH at 160 ℃ for 3 h. The nano-powders were characterized by X-ray diffraction（XRD） and scanning electron microscopy （SEM）. The nano-powders consists of cubic grains with tetragonal crystal phase and an average diameter of Ф0.5～2.0μm. A possible formation mechanism of PZT nano-powders ware analyzed.