平炉尘合成CoFe_2O_4的磁性分析  

STUDIES ON MAGNETIC PROPERTIES OF FINE CoFe_2O_4 BY OPEN-HEATH DUST

作　　者：徐爱菊[1] 刘世昌[1] 

机构地区：[1]内蒙古师范大学化学系,内蒙古呼和浩特010022

出　　处：《内蒙古师范大学学报（自然科学汉文版）》2003年第4期388-390,共3页Journal of Inner Mongolia Normal University(Natural Science Edition)

基　　金：国家自然科学基金资助项目(29666001);内蒙古师范大学科研基金青年重点资助项目(QNZ00101)

摘　　要：包头钢铁厂的平炉尘含铁量高,粒径微细,以γ Fe2O3为主,经过提纯分级可以作为生产超细磁性材料的原料.在有Co2+存在及避免氧化的条件下,将平炉尘转化为超细尖晶石型铁酸盐CoFe2O4,测定了磁滞回线并对其磁性进行了研究.The open-heath dust from Baotou Iron and Steel Company is fine in particle size,its iron content is high, mainly exits in γ-Fe_2O_3 type.After purification it can become raw material for magnetic material.Applying principal of topotactic reaction in the same crystal class,in the presence of bivalence Co~2+ metal ion and preventing from air oxidizing,the dust was transferred to spinal ferrite CoFe_2O_4, The magnetic properties of spinel ferrite CoFe_2O_4 were studies, and their magnetic hysteresis loop were determined.

关 键 词：平炉尘 合成 磁滞回线 磁性材料 钴铁酸盐 

分 类 号：TM277[一般工业技术—材料科学与工程] O614.812[电气工程—电工理论与新技术]