Journal
JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM
Volume 27, Issue 6, Pages 1593-1598Publisher
SPRINGER
DOI: 10.1007/s10948-014-2490-7
Keywords
Hexaferrites; Hydrothermal synthesis; Saturation magnetization; Coercivity
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Funding
- Fatih University under BAP [P50021203-Y (2282)]
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In this study, the effect of temperature on the hydrothermal synthesis of single-phase SrFe12O19 hexaferrite (SrM) was investigated. For this synthesis, annealing or calcination process was applied. The Fe/Ba molar ratio was taken as 8:1. In this study, single-phase SrM NPs were synthesized via hydrothermal method. XRD patterns showed the presence of the hard (SrM) phase in the samples treated at 200 and 220 C-a similar to. Besides, formation of hexagonal plate-like samples was observed in SEM micrographs. Despite the low magnetization and coercive field values, the presence of the SrM phase was also shown in magnetization measurements. A reduced magnetization was explained by the existence of SrCO3 and Fe2O3 phases, and a high shape anisotropy is probably the reason of low coercivity.
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