Magnetic properties of mnbi fine particles fabricated using hydrogen plasma metal reaction

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Abstract

Fine particles of MnBi were prepared by the hydrogen plasma metal reaction method and their magnetic properties were investigated. The particle size of the as-prepared MnBi particles was 70950nm with a median diameter of 269 nm. Heat treatment and ball milling with a dispersant improved the magnetic properties of the particles. The sample annealed at 330°C for 5 h in Ar then ball-milled for 10 min with a dispersant showed the largest energy product of 105 kJ̇m-3 and a saturation magnetization of 71.0Am 2̇kg-1. High coercivity of 1380 kȦm-1 was also obtained for the sample that was ball-milled for 2 h. © 2013 The Japan Institute of Light Metals.

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Isogai, K., Matsuura, M., Tezuka, N., & Sugimoto, S. (2013). Magnetic properties of mnbi fine particles fabricated using hydrogen plasma metal reaction. Materials Transactions, 54(9), 1673–1677. https://doi.org/10.2320/matertrans.MAW201306

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