Magnetic properties of Mo-stabilized bulk Fe₃B magnet

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• 作者：Santosh K. Pal ; ^{pal.santosh07@gmail.com} ; ^{santosh.kumar.pal@ife.no} ; L.V.B. Diop ; K.P. Skokov ; O. Gutfleisch
• 关键词：Iron alloys ; Borides ; Suction casting ; Hard magnets ; Magnetic anisotropy
• 刊名：Scripta Materialia
• 出版年：2017
• 出版时间：15 March 2017
• 年：2017
• 卷：130
• 期：Complete
• 页码：234-237
• 全文大小：555 K
• 卷排序：130

文摘

Fe3B is a metastable high temperature phase and exists in orthorhombic and tetragonal structures. Here, we report on synthesis, structural and magnetic properties of tetragonal (P42/n) Fe3B stabilized by a very small substitution of Mo (1–3 at.%) for Fe. The (Fe0.98Mo0.02)3B compound possesses a high Curie temperature of 780 K and high saturation magnetization of 175 A·m2/kg (1.60 T). Magnetocrystalline anisotropy field of around 0.8 T and anisotropy energy of 340 kJ/m3 have been determined for magnetically-oriented fine particles of (Fe0.98Mo0.02)3B.