Influences of Dopants on Microstructure and Magnetic Properties of (Mg_(0.476)Mn_(0.448)Zn_(0.007))(Fe_(1.997)Ti_(0.002))O_4 Ferrites

作     者：陆洪智 LU Hongzhi (Faculty of Engineering, China University of Geosciences, Wuhan 430074, China)

作者机构：Faculty of Engineering China University of Geosciences 

出 版 物：《Journal of Wuhan University of Technology(Materials Science)》 (武汉理工大学学报（材料科学英文版）)

年 卷 期：2011年第26卷第4期

页      面：668-670页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学] 070301[理学-无机化学] 

主　　题：(Mg0.476Mn0.448Zn0.007)(Fe1.997Ti0.002)O4 ferrites microstructure magnetic properties dopants 

摘      要：Influences of addition of CaO, CoO and V2O5 on the microstructure and magnetic properties of （Mg0.476Mn0.448Zn0.007）（Fe1.997Ti0.002）O4 ferrites were investigated. The powders of （Mg0.476Mn0.448Zn0.007） （Fe1.997Ti0.002）O4 composition were prepared by using a conventional ceramic powder processing technique. The experimental results showed that the average grain size of the sintered ferrites codoped with 0.03wt% CaO, 0.04wt% CoO and 0.06wt% V2O5 was about 15 μm; the saturation magnetization of ferrites was 68.78 emu/g. The addition of V2O5 in the ferrites can not only increase value of the saturation magnetization, but also decrease the average grain size of （Mg0.476Mn0.448Zn0.007）（Fe1.997Ti0.002）O4 ferrites. Simultaneous incorporation of CoO, CaO and V2O5 dopants into （Mg0.476Mn0.448Zn0.007）（Fe1.997Ti0.002）O4 ferrites can not only improve the saturation magnetization of the materials, but also inhibit abnormal grain growth.