摘要
本文采用络合中和沉淀法制取具有单磁畴尺寸的 Fe_3O_4超微粒子,并通过单分子层包复油酸量的测定,比表面测定,TEM 和 XPD 物相分析等,估测了 Fe_3O_4超微粒子的平均粒径、表观形貌和磁学性质等。
Super paramagnetic ultrafine powder Fe_3O_4 and Fe_3O_4·nOA was prepared by the complexing-neutralizing precipitation process.The particle size of Ultrafine powder Fe_3O_4 was measured by various methods,such as,liquid phase adsorption, x-ray diffraction,electron microscopy, measuring the specific surface.The met- hods of coating Fe_3O_4 with single layer molecular oleic and measuring quantity of oleic acidin Fe_3O_4·nOA have been provided.
出处
《仪表材料》
CSCD
1990年第5期274-277,282,共5页
