溶胶-凝胶法制备纳米FeNiBa_(0.2)O_x磁性材料  

Preparation of Nano-Size Fe Ni Ba_(0.2)O_x Magnetic Material by Sol-Gel

作　　者：杨永梅[1] 

机构地区：[1]黄山学院化学化工学院,安徽黄山245041

出　　处：《安庆师范学院学报（自然科学版）》2015年第2期64-66,共3页Journal of Anqing Teachers College(Natural Science Edition)

基　　金：黄山学院科研基金(No.2007xkjq017)

摘　　要：用溶胶-凝胶法制备不同组成的铁氧体粉末,利用XRD,TEM,VSM等分析测试手段对获得的铁氧体粒子的形貌、晶体结构、磁饱和强度进行表征。实验结果表明:延长加热的时间和提高热处理的温度使样品的粒径增大,铁氧体粒子无论锶元素加入与否都呈现较好的球形分布,引入锶元素使晶体的结构发生了较大改变、磁饱和强度也随之减小。In this paper, the FeNiBa0.2 Ox powder with different composition was prepared by Sol-gel process.The crystal phase, microstructure and magnetic properties of sample were characterized by XRD, TEM, VSM, respectively.The results indica-ted that the ferrite powder with larger particle size was obtained by raising temperature and prolonging the reaction time .The satura-tion magnetization of the FeNiBa0.2 Ox was weakened with the addition of Sr2＋, and all the particles appeared regular sphere no mat-ter with or without Sr2＋.

关 键 词：铁氧体 溶胶凝胶 磁性材料 纳米颗粒 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]