期刊
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
卷 474, 期 -, 页码 83-89出版社
ELSEVIER
DOI: 10.1016/j.jmmm.2018.10.087
关键词
M-type hexaferrites (MHF); Ce doping content; Sr1-xCexFe12O19 (SCFO); X-ray diffraction (XRD); Magnetic properties; Ceramic process
资金
- National Natural Science Foundation of China [51272003, 51472004]
- Punjab University Lahore, Pakistan
- Deanship of Scientific Research at King Saud University [RG-1437-030]
This paper highlights the experimental study of Ce3+ ions doped M-type hexaferrite Sr1-xCexFe12O19 (0.00 <= x <= 0.30) prepared by adopting the conventional ceramic process. The M-type hexagonal structure is confirmed in the X-ray diffraction measurements. There were two phases recognized for the magnetic powders with varying Ce content, one in-between x = 0.00 to 0.20 as a single magneto plumbite segment and the other at x >= 0.20 as a second phase or the so called alpha-Fe2O3 phase. The micrographs of the sintered magnets depicted hexagonal crystal shapes. For magnetic properties a systematic study was done on the room temperature B-H hysteresis measurements. The estimated remanence value first increases with x in the range of x = 0.00 to 0.15 and then showed a decrease at x >= 0.15. Besides, the intrinsic coercivity (H-cj) and magnetic induction coercivity (H-cb) show decreasing-increasing character while maximum energy product (BHmax) and ratio H-k/H-cj demonstrate increasing-decreasing character in the Ce doping range x of x <= 0.15 and x > 0.15 respectively.
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