摘要
用X射线荧光光谱、X射线衍射、透射电镜和粒度分析仪等手段对有机添加剂 超强碱共沉淀法制备的粉体性能进行了表征。结果表明,以氯氧化锆、氢氧化钠为原料,有机聚合物聚乙二醇(PEG4000)为添加剂,采用有机添加剂 超强碱共沉淀法,通过控制适当的工艺条件,可制备出粒径为10nm左右的高纯纳米多晶氧化锆粉体,得到了室温稳定的纳米四方多晶氧化锆粉体。超强碱共沉淀法所制备的粉体具有纯度高和氯离子等杂质少等特点。该粉体873K处理的粉体一次粒径为10nm左右,其粒度小,分散性好,粒度分布窄,二次颗粒平均粒径为0.46μm。
With aids of Xray fluorescence analysis (XRF),Xray diffraction (XRD), transmission electron microscopy (TEM), particle size analysis etc.,the properties of zirconia nanoparticles prepared by the super alkaline codepositing method containing organic addition were studied. The results indicate that the organic addition in the super alkaline condition was easy to forming uniform reaction system and convenient for dispersing reaction products and cleaning impurities. Controlling the proper conditions the powders which have high purity and less chlorion have been gained.The main phase of the nanometersized zirconia powders after calcining at 873K for 3h was tetragonal zirconia, which was stable at the room temperature.And less monoclinic zirconia is found.The particle size of the powder after calcining 873K was about 10nm, the shape approximately roundness. The agglomerate was narrowly distribution at about 0.46μm.
出处
《功能材料》
EI
CAS
CSCD
北大核心
2003年第3期323-324,327,共3页
Journal of Functional Materials
基金
国家自然科学基金资助项目(50072009)
