用反向胶团制备稳定ZrO_2超细粉的研究  

Study on the Preparation of Stabilized Ultrafine Zirconia Powders by Using Reverse Micellae

作　　者：杨传芳[1] 陈家镛[1] 

机构地区：[1]中国科学院化工冶金研究所分离科学与工程青年实验室,北京100080

出　　处：《无机材料学报》1997年第5期749-754,共6页Journal of Inorganic Materials

基　　金：国家自然科学基金!59482003

摘　　要：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Y2O_3及CeO_2稳定的四方相ZrO_2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 re verse micelles was investigated by injection method, the size of reverse micelles was then 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, Y_2O_3 and CeO_2 stabilized ultrafine zirconia powders were prepared accordingly. Dif ferent 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.

关 键 词：反胶团 超细粉 氧化锆陶瓷 陶瓷粉末 

分 类 号：TQ174.758[化学工程—陶瓷工业] TQ174.611[化学工程—硅酸盐工业]