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Structure and hard magnetic properties of barium hexaferrite with and without $La_2O_3$ prepared by ball milling

Babu, V and Padaikathan, P (2002) Structure and hard magnetic properties of barium hexaferrite with and without $La_2O_3$ prepared by ball milling. In: Journal of Magnetism and Magnetic Materials, 241 (1). pp. 85-88.

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Abstract

The barium hexaferrites have been prepared by ball milling of a $BaO_2$ and $Fe_2O_3$ mixture followed by thermal heat treatments. The structure and magnetic properties were investigated using X-ray diffraction, scanning electron microscopy and vibrating sample magnetometer techniques. The effect of grain refiner was also studied and it was found that the hard magnetic properties were improved significantly. The sintered product of barium hexaferrite powders prepared from ball milling has higher coercive force than that of other barium hexaferrite made from oxide/carbonate.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Elsevier.
Keywords: Hard ferrites;Barium hexaferrite;Grain refiner;Ball milling;Magnetization and coercivity
Department/Centre: Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited: 02 Jun 2006
Last Modified: 19 Sep 2010 04:28
URI: http://eprints.iisc.ernet.in/id/eprint/7375

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