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Microwave Sintering of Zn-Nb Doped Barium Hexaferrite Synthesized via Sol-Gel Method
Materials Synthesis and Characterization Laboratory (MSCL), Institute of Advanced Technology (ITMA), Universiti Putra Malaysia, Serdang, Malaysia
Materials Synthesis and Characterization Laboratory (MSCL), Institute of Advanced Technology (ITMA), Universiti Putra Malaysia, Serdang, Malaysia
Department of Physics, Jeyaraj Annapackium College for Women, Periyakulam, India
Center for Material Science and Nano Devices, Department of Physics, SRM University, Kattankulathur, India
Materials Synthesis and Characterization Laboratory (MSCL), Institute of Advanced Technology (ITMA), Universiti Putra Malaysia, Serdang, Malaysia
- 1 Materials Synthesis and Characterization Laboratory (MSCL), Institute of Advanced Technology (ITMA), Universiti Putra Malaysia, Serdang, Malaysia
- 2 Materials Synthesis and Characterization Laboratory (MSCL), Institute of Advanced Technology (ITMA), Universiti Putra Malaysia, Serdang, Malaysia
- 3 Department of Physics, Jeyaraj Annapackium College for Women, Periyakulam, India
- 4 Center for Material Science and Nano Devices, Department of Physics, SRM University, Kattankulathur, India
- 5 Materials Synthesis and Characterization Laboratory (MSCL), Institute of Advanced Technology (ITMA), Universiti Putra Malaysia, Serdang, Malaysia
Materials Sciences and Applications·Volume 05 (2014)·Pages 171–176·Published 25 March 2014·DOI10.4236/msa.2014.54021
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Abstract
A series of polycrystalline M-type hexagonal ferrites with the formula BaFe 12- 2x Zn x Nb x O 19 (x = 0.2, 0.4, 0.6, 0.8 mol%) have been synthesized by the sol-gel method. The composition and micro structure 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.
KeywordsCeramicsMagnetic MaterialsSurface PropertiesMagnetic Properties
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