Effect of barium on the properties of lead hexaferrite
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An analysis of the properties of a family based on lead-barium substitution in the M-type hexaferrite is presented. The samples were prepared by the ceramic method according to the general formula Pb x Ba 1-x Fe 12O 19. The barium content was varied with x=0.1, 0.3, 0.5, 0.7, and 0.9; no secondary phases were detected in any composition. Rietveld refinement analysis was done in order to determinate crystallographic parameters, content of phases and degree of substitution. The effects of the barium on the morphological and magnetic properties were studied. Iron Mössbauer spectroscopy was used for determining the hyperfine parameters of the iron nucleus and their environment; also, the cationic occupancy was evaluated and the results were checked with X-ray refinement results. © 2011 Springer Science Business Media, LLC.
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An analysis of the properties of a family based on lead-barium substitution in the M-type hexaferrite is presented. The samples were prepared by the ceramic method according to the general formula Pb x Ba 1-x Fe 12O 19. The barium content was varied with x=0.1, 0.3, 0.5, 0.7, and 0.9; no secondary phases were detected in any composition. Rietveld refinement analysis was done in order to determinate crystallographic parameters, content of phases and degree of substitution. The effects of the barium on the morphological and magnetic properties were studied. Iron Mössbauer spectroscopy was used for determining the hyperfine parameters of the iron nucleus and their environment; also, the cationic occupancy was evaluated and the results were checked with X-ray refinement results. © 2011 Springer Science%2bBusiness Media, LLC.
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Cationic substitution; M-type hexaferrite; Magnetic properties; Mössbauer spectroscopy; Rietveld refinement Cationic substitution; Ceramic methods; Crystallographic parameters; Degree of substitution; Hexaferrites; Hyperfine parameters; Iron nuclei; M-type hexaferrite; Rietveld; Secondary phasis; Ssbauer spectroscopies; X-ray refinement; Barium; Ferrite; Lead; Magnetic properties; Single crystals; Rietveld refinement
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