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- W2043403000 abstract "The strontium hexaferrite (SrFe 12 O 19 ) and Co-substituted strontium hexaferrite (SrCoFe 11 O 19 ) were prepared by ceramic method. The milled mixture of Fe 2 O 3 , SrCO 3 and CoO powders were calcined at 1100°C and pellets sintered at 1300°C in air. The crystal structure, morphology and magnetic properties of samples have been investigated by X-ray diffraction (XRD), scanning electron microscope (SEM) and vibrating sample magnetometer (VSM), respectively. The crystal structure of SrFe 12 O 19 was hexaferrite with the crystallite size and the lattice constants a and c of 59.6 nm, 5.8 Å, and 23.0 Å, respectively. Also, the crystal structure of SrCoFe 11 O 19 was hexaferrite with the crystallite size and the lattice constants a and c of 63.7 nm, 5.9 Å and 23.0 Å, respectively. The morphology of obtained samples changed from hexagonal rods to discs shape and grain sizes increased with the increase of doped Co in SrFe 12 O 19 . SrFe 12 O 19 with the coercive force (Hc) of 2,133 Oe was classified as hard ferrite magnetic. While, Co-substituted strontium hexaferrite (SrCoFe 11 O 19 ) was soft ferrite magnetic with coercive force of 64 Oe. Results indicated that magnetic properties of samples such as hard ferrite magnetic and soft ferrite magnetic showed great dependence on the cobalt additive in strontium." @default.
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- W2043403000 date "2014-06-01" @default.
- W2043403000 modified "2023-09-27" @default.
- W2043403000 title "Structure and Magnetic Properties of Co-Substituted Strontium Hexaferrite" @default.
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- W2043403000 doi "https://doi.org/10.4028/www.scientific.net/amr.979.200" @default.
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