华东师范大学学报（自然科学版）2001，Vol.1Issue(1)：71-76,6.
稀土镝铁氧体磁流体的W/O微乳液法制备及性质研究
Preparation of Dysprosium Ferrites Ferrofluids in W/O Microemulsion and Studies on the Properties
摘要
Abstract
This paper reports unprecedented preparation of the ferrofluidswhich is based-water ferrites of different content of Dy3+ by using water-in-oil(W/O) microemulsion. Conditions of preparation were investigated, the optimum conditions of preparation are strong magnetism and good stability when the age temperature is at 80℃ and the age time is about 6 h ours and content of dysprosium is 1.0ml. Inn term of Langevin function, the ferr ites have superparamagnetism when the temperature is above 167K, and the blockin g temperature is between 107K and 167K. Otherwise, the ferrites were characteriz ed by using IR, XRD, and TEM. IR confirmed that the particles are ferrites packe d by P-Octyl polyethylene glycol phonylether. The average particle size is 18nm .关键词
镝铁氧体磁流体/W/O微乳液/超顺磁性分类
化学化工引用本文复制引用
王丁林,沈骎,胡先罗,张洁,赵泓,朱传征..稀土镝铁氧体磁流体的W/O微乳液法制备及性质研究[J].华东师范大学学报（自然科学版）,2001,1(1):71-76,6.基金项目
国家自然科学基金资助项目(29773014) （29773014）
