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Influence of Fe Content on Lattice, Structural and Magnetic Analyses of BaFe2+2Fe3+16-xO27± Hexaferrites Prepared by Facile Ceramic Route Methodology
- Source :
- Journal of Electronic Materials. 51:141-149
- Publication Year :
- 2021
- Publisher :
- Springer Science and Business Media LLC, 2021.
-
Abstract
- Fe2W-type ferrite BaFe2+2Fe3+16-xO27± (x =−0.8, −0.4, 0.0, 0.4, 0.8, 1.2) fine powders and magnets were synthesized by a facile ceramic route. The lattice and microstructure of the fine powders were studied by x-ray diffraction (XRD). The results show that a single magnetoplumbite structure is obtained under the condition of Fe change (x =−0.8, −0.4, 0.0, 0.4, 0.8, 1.2). The morphology of the sintered magnet was studied by scanning electron microscopy (SEM). The influence of iron content on the magnetic characteristics of BaFe2+2Fe3+16-xO27± was systematically studied by controlling the pre-sintering temperature of 1300°C. The change in the remanence (Br) of BaFe22+Fe16-x3+O27± magnets with different iron content first increased and then decreased, which confirmed that the change trend of the Br was consistent with the variation in the saturation magnetization (Ms). Meanwhile, the coercivity (Hcj) and (Hcb) of the magnets was consistent with the change characteristics of the coercive force (Hc) of magnetic powder. At iron change (x) = −0.4, Ms, Br, Hc, Hcj, Hcb, and maximum energy product ((BH)max) reach maximum.
- Subjects :
- Materials science
Scanning electron microscope
Analytical chemistry
Coercivity
Condensed Matter Physics
Microstructure
Electronic, Optical and Magnetic Materials
Remanence
visual_art
Magnet
X-ray crystallography
Materials Chemistry
visual_art.visual_art_medium
Ferrite (magnet)
Ceramic
Electrical and Electronic Engineering
Subjects
Details
- ISSN :
- 1543186X and 03615235
- Volume :
- 51
- Database :
- OpenAIRE
- Journal :
- Journal of Electronic Materials
- Accession number :
- edsair.doi...........cd3504d00aae177c8ba348c2028b4725