| 络合沉淀法制备BaTiO_3超细粉末 |
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| 引用本文： | 顾达,顾燕芳.络合沉淀法制备BaTiO_3超细粉末[J].电子元件与材料,1995,14(5):15-18. |
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| 作者姓名： | 顾达 顾燕芳 |
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| 作者单位： | 华东理工大学技术化学物理研究所 |
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| 摘 要： | 在分析ＢａＴｉＯ_３前驱体形成机理的基础上，提出了以草酸作为络合剂，用络合沉淀法制备超细ＢａＴｉＯ_３新工艺。用化学分析法测定产物Ｂａ／Ｔｉ比，用ＸＲＤ、ＴＥＭ、ＢＩ－９０激光散射粒度仪对产物的晶型、粒度及形貌进行表征。结果表明：采用该法合成的前驱体，微观组分确定，粒径小，粒度分布窄，近似球形，煅烧后为高纯超细ＢａＴｉＯ_３粉末。
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| 关 键 词： | 电子陶瓷粉末，钛酸钡，合成技术 |
Preparation of Ultrafine BaTiO_3 Powders by Complex Precipitation |
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| Gu Da, Gu Yanfang, Zheng Baicun, Hu Liming.Preparation of Ultrafine BaTiO_3 Powders by Complex Precipitation[J].Electronic Components & Materials,1995,14(5):15-18. |
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| Authors: | Gu Da Gu Yanfang Zheng Baicun Hu Liming |
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| Affiliation: | Gu Da; Gu Yanfang; Zheng Baicun; Hu Liming |
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| Abstract: | A new process for preparing ultrafine BaTiO3 powders is proposed by complex precipitation with oxatate as complex agent on the basis of analysing formation mechanism of the precursor. The Ba/Ti ratio of the precursor is obtained by the chemical analysis, the crystal structure. particle size and morphology of BaTiO3 are characterized separatedly by XRD, BI-90 and TEM. It is shown that BaTiO3 obtained from the process is of fixed composition, small particle size and narrow size distribution, the particles are nearly spherical and can be calcinated into ultrafine of BaTiO3 of high purity. |
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| Keywords: | electronic ceramic powder barium titanate preparation technology |
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