Investigation on the Effect of B₂O₃ Additive on Microstructure and Magnetic Properties of Barium Hexaferrite

Abstract:

The effects of B₂O₃ addition (0, 0.2, 0.5, 1 and 2 wt %) on the change of microstructure and magnetic properties of barium hexaferrite (BHF) has been made and analyzed. The purpose of this work is to higher the magnetic properties of BHF by B₂O₃ additive. It was found that the distribution average diameter particle, true density, sintered density, and magnetic flux density of BHF are modified obviously as a small amount of B₂O₃ is added. The best quality of materials is obtained which 0.5 wt % B₂O₃ addition and showed excellent properties with average particle size of 1.78 µm , true density of 5.00 g/cm³, sintered density of 4,66 g/cm³, and flux density of 722.5 Gauss. Furthermore, the surface morphology by SEM revealed that the grain is around 1.2 µm and more homogeneity. The results can be interpreted that the preferential addition of B₂O₃ at low level is 0.5 wt%.

• Periodical: Advanced Materials Research (Volume 1123)
• Pages: 65-68
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1123.65
• Online since: August 2015
• Authors: A.Y. Sari*, D. Ginting, P. Sebayang, P. Sardjono, C. Kurniawan, M.N. Nasrudin
• Keywords: Additive, B₂O₃, Barium Hexaferrite, Highest Magnetic Flux Density, Microstructure

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