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Synthesis, structure and electromagnetic properties of Mn–Zn ferrite by sol–gel combustion technique.
- Source :
-
Journal of Magnetism & Magnetic Materials . Jan2014, Vol. 349, p116-120. 5p. - Publication Year :
- 2014
-
Abstract
- Abstract: The electromagnetic absorbing behaviors of a thin coating fabricated by mixing Mn–Zn ferrite with epoxy resin (EP) were studied. The spinel ferrites Mn1−x Zn x Fe2O4 (x=0.2, 0.5 and 0.8) were synthesized with citrate acid as complex agent by sol–gel combustion method. The microstructure and surface morphology of Mn–Zn ferrite powders were characterized by X-ray diffraction (XRD) and scanning electron microscope (SEM). The complex permittivity and complex permeability of the fabricated ferrite/EP composites were investigated in terms of their contributions to the absorbing properties in the low frequency (10MHz to 1GHz). The microwave absorption of the prepared ferrite/EP composites could be tailored by matching the dielectric loss and magnetic loss and by controlling the doped metal ratio. The composites with the ferrite composition x=0.2 are found to show higher reflection loss compared with the composites with other compositions. It is proposed that the prepared composites can potentially be applied in electromagnetic microwave absorbing field. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 03048853
- Volume :
- 349
- Database :
- Academic Search Index
- Journal :
- Journal of Magnetism & Magnetic Materials
- Publication Type :
- Academic Journal
- Accession number :
- 91629265
- Full Text :
- https://doi.org/10.1016/j.jmmm.2013.08.057