Preparation and Magnetic Properties of Mn-Zn Ferrites by the Co-precipitation Method

作     者：李雪 张俊喜 LI Xue1,2,REN Ping2,ZHANG Junxi1,2 ,ZHANG Lingsong2,3,LIU Guoping3 (1. School of Environmental and Chemical Engineering,Shanghai University,Shanghai 200072,China;2. Electrochemical Research Group,Shanghai University of Electric Power,Key Laboratory of State Power Corporation of China,Shanghai 200090,China;3. Shanghai Bao Steel Tiantong Magnetic Materials Co.,Ltd,Shanghai 201900,China)

作者机构：School of Environmental and Chemical EngineeringShanghai University Electrochemical Research GroupShanghai University of Electric PowerKey Laboratory of State Power Corporation of China 

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：2009年第24卷第6期

页      面：875-878页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0702[理学-物理学] 

基　　金：Funded by the Basic Key Project in Shanghai City (06JC14033) the Key Discipline Construction Fund in Shanghai City (P1304) 

主　　题：co-precipitation method microstructure magnetic property Mn-Zn ferrite 

摘      要：Mn-Zn ferrites （Mn1-xZnxFe2O4） with different compositions were prepared by the coprecipitation method, and the influences of such synthesis conditions as pH value, composition and volume ratio （R） of the mixed solution and NH4HCO3 solution on their microstructures and magnetic properties were discussed. The samples were characterized by X-ray diffraction （XRD） and magnetization measurement instrument. Lattice parameters and average crystalline size of the synthesized materials were calculated from the corresponding XRD patterns with the related software Jade.5. For samples of different pH values, only one phase was found when pH values were 7.0, 8.0 and 9.0. The sample with pH value of 7.0 exhibited the highest saturation magnetic induction, the lowest coercive force, and crystallized best. For samples of different R values with pH value of 7.0, only one phase was observed in all samples, and the sample with R value of 2.3 exhibited the highest saturation magnetic induction and the lowest coercive force. The composition has mainly afected the magnetic properties, and the saturation magnetic induction increases with the increase of the content of Zn （x）, but decreases when x is beyond 0.6. The trend of coercive force is on the contrary. However, no magnetism is exhibited when the x value is up to 0.8.