Magnetic compound and method of producing the same

US10351935B2 · kind B2 · utility

Assignee

• TOYOTA JIDOSHA KABUSHIKI KAISHA · JP

Inventors

• Noritsugu Sakuma · Mishima, JP
• Akira Kato · Yokohama, JP
• Kota Washio · Nanbu, JP
• Hidefumi Kishimoto · Susono, JP
• Masao Yano · Susono, JP
• Akira Manabe · Miyoshi, JP
• Masaaki Ito · Kyonan, JP
• Shunji Suzuki · Yokohama, JP
• Kurima Kobayashi · Fukuroi, JP

Key dates

• Filing date: Sep 3, 2015
• Grant date: Jul 16, 2019
• Expiry date: Dec 14, 2037

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01F1/0593
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

Provided is a magnetic compound represented by the formula (R(1-x)Zrx)a(Fe(1-y)Coy)bTcMdAe (wherein R represents one or more rare earth elements, T represents one or more elements selected from the group consisting of Ti, V, Mo, and W, M represents one or more elements selected from the group consisting of unavoidable impurity elements, Al, Cr, Cu, Ga, Ag, and Au, A represents one or more elements selected from the group consisting of N, C, H, and P, 0≤x≤0.5, 0≤y≤0.6, 4≤a≤20, b=100−a−c−d, 0<c<7, 0≤d≤1, and 1≤e≤18), in which a main phase of the magnetic compound includes a ThMn12 type crystal structure, and a volume percentage of an α-(Fe,Co) phase is 20% or lower.