Correlation between Microstructure and Magnetic Properties on MnZn Ferrite with Bi₂O₃ Increasing Addition

Abstract:

The aim of this paper is quantitative characterization of a MnZn ferrite with Bi₂O₃ increasing addition using the Image-Pro Plus software from Media Cybernetics. The sample matrix is a ferrite with the following chemical composition: Mn_0.54Zn_0.37Fe_2.06O₄. We applied the conventional ceramic technology in order to obtain the samples. Thus, the raw materials, i.e. αFe₂O₃, Mn₃O₄, and ZnO, in a molar ratio 53:28:19 were mixed in suitable proportions in a steel ball-mill using demineralized water. The mixture was burn off at 800 °C for 1 hour, in air. The pre-sintered powder was milled in steel ball-mill with increasing addition of Bi₂O₃ (0.00, 0.01, 0.03, 0.05, 0.07, 0.10, 0.30, 0.50 wt %). For quick references, the sample without bismuth ions was denoted and the samples with increasing concentrations were numbered from 1, 7.

• Periodical: Solid State Phenomena (Volume 216)
• Pages: 23-28
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.216.23
• Online since: August 2014
• Authors: Mihai Branzei*, Ionut Cristea, Ion Ciuca, Adrian Bibiș, Marcel Feder
• Keywords: Bi₂O₃, Duplex Structure, Grain Size, Loose Factor, MnZn Ferrite, Porosity

References

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DOI: 10.1051/jp4:1997127