以注入法研究了金属高于及氨水在AOT-isooctane-water反胶团中的溶解性,用光散射技术测定了胶团的大小,用冷冻蚀刻发形技术表征了反胶团的微观结构;研究了以反胶团为基础溶液多种制备方式对粉末的影响,实验制备了Y2O3及CeO2稳定的四方相ZrO2超细粉.研究表明,将金属离子包溶于反胶团是制备良好颗粒的必要条件.
The solubilization behavior of metal ions and ammonia solution in AOT-isooctane-water reverse micelles was investigated by injection method, the size of reverse micelles
was then determined with dynamic light scattering technique, and the microstructure of reverse micelles containing metal ions was characterized by using freeze
fracture electron microscopic technique. With these micellar solutions, Y2O3 and CeO2 stabilized ultrafine zirconia powders were prepared accordingly. Different kinds of preparative
manners were tried to examine their effects on the quality of powders thereby derived. It was found that the swollen of metal ions in reverse micelles was an essential
condition for obtaining a powder with good quality.
参考文献
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