Microwave Sintering of Zn-Nb Doped Barium Hexaferrite Synthesized via Sol-Gel Method  

作　　者：Samikannu Kanagesan Mansor Hashim Sinnappan Jesurani Thirunavukarasu Kalaivani Ismayadi Ismail 

机构地区：[1]Center for Material Science and Nano Devices, Department of Physics, SRM University, Kattankulathur, India [2]Department of Physics, Jeyaraj Annapackium College for Women, Periyakulam, India [3]Materials Synthesis and Characterization Laboratory (MSCL), Institute of Advanced Technology (ITMA), Universiti Putra Malaysia, Serdang, Malaysia

出　　处：《Materials Sciences and Applications》2014年第4期171-176,共6页材料科学与应用期刊（英文）

摘　　要：A series of polycrystalline M-type hexagonal ferrites with the formula BaFe12-2xZnx NbxO19 (x = 0.2, 0.4, 0.6, 0.8 mol%) have been synthesized by the sol-gel method. The composition and microstructure govern the magnetic properties of ferrites. The XRD analysis shows the formation of pure magneto plumbite phase without any other impurity phases. The Zn-Nb substitutions in barium hexaferrite have been confirmed through magnetic measurements. The results show that the magnetic properties are closely related to the distributions of Zn-Nb ions on the five crystallographic sites. The saturation magnetization and coercivity increase with increasing Zn-Nb concentration.A series of polycrystalline M-type hexagonal ferrites with the formula BaFe12-2xZnx NbxO19 (x = 0.2, 0.4, 0.6, 0.8 mol%) have been synthesized by the sol-gel method. The composition and microstructure govern the magnetic properties of ferrites. The XRD analysis shows the formation of pure magneto plumbite phase without any other impurity phases. The Zn-Nb substitutions in barium hexaferrite have been confirmed through magnetic measurements. The results show that the magnetic properties are closely related to the distributions of Zn-Nb ions on the five crystallographic sites. The saturation magnetization and coercivity increase with increasing Zn-Nb concentration.

关 键 词：CERAMICS MAGNETIC Materials Surface PROPERTIES MAGNETIC PROPERTIES 

分 类 号：O6[理学—化学]