Preparation and Microstructure of Nanometer Tetragonal Polycrystal Zirconia Powder at Low Temperature Condition
TAN Qiang-qiang1, TANG Zi-long2, ZHANG Zhong-tai2
1. Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing, 100080, China; 2. State Key Laboratory ofNew Ceramics and Fine Processing, Department of Materials Science andEngineering, Tsinghua University, Beijing, 100084, China
Abstract：Nanometer tetragonal polycrystal zirconia powder was prepared by the milling method in the super-alkaline medium containing organic addition. The properties and the microstructures of zirconia nanometer particles were investigated by X-ray fluorescence analysis (XRF), X-ray diffraction (XRD), transmission electron microscopy (TEM). The results show that the zirconia nuclei are synthesized in the beginning of the reaction between zirconium oxy-chloride and sodium hydroxide. It is obviously different from the others about preparing methods of zirconia powders. Simultaneity the nanomerter tetragonal polycrystal zirconia powders are obtained with the perfect properties including high purity and less chlorine, smaller and even particle size, excellent dispersing property due to addition of the polymer. The organic addition-assisted super-alkaline method has the advantages of low synthesizing temperature and saving resources and high efficiency relative to other methods.
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