Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Ferrite sintered magnet, ferrite particles, bonded magnet, and rotating electrical machine
The invention relates to a ferrite sintered magnet, ferrite particles, a bonded magnet, and a rotating electrical machine. A sintered ferrite magnet containing a ferrite phase having a magnetoplumbite crystal structure, the sintered ferrite magnet containing at least Ca, a metal element A, a metal element R, Bi, Fe, and a metal element M. The metal element A is at least one element selected from the group consisting of Sr, Ba, and Pb, the metal element R is at least one element selected from the group consisting of rare earth elements including Y and must contain La, and the metal element M is at least one element selected from the group consisting of rare earth elements including Y and must contain La. The metal element M is at least one element selected from the group consisting of Co, Ni, Zn, Al, Cu, and Cr and essentially contains Co, and when the atomic ratio of the metal elements is represented by formula (1), c, a, r, b, f, and m satisfy the following formulae (2) to (8).
本发明涉及一种铁氧体烧结磁铁、铁氧体颗粒、粘结磁铁以及旋转电机。该磁铁是含有具有磁铅石型的晶体结构的铁氧体相的铁氧体烧结磁铁，其中，至少含有Ca、金属元素A、金属元素R、Bi、Fe、及金属元素M，金属元素A为选自Sr、Ba及Pb中的至少一种元素，金属元素R为选自包含Y的稀土元素中的至少一种元素且必须含有La，金属元素M为选自Co、Ni、Zn、Al、Cu及Cr中的至少一种元素且必须含有Co，在以(1)式表示金属元素的原子比率时，(1)式中，c、a、r、b、f及m满足下述(2)～(8)式。
Ferrite sintered magnet, ferrite particles, bonded magnet, and rotating electrical machine
The invention relates to a ferrite sintered magnet, ferrite particles, a bonded magnet, and a rotating electrical machine. A sintered ferrite magnet containing a ferrite phase having a magnetoplumbite crystal structure, the sintered ferrite magnet containing at least Ca, a metal element A, a metal element R, Bi, Fe, and a metal element M. The metal element A is at least one element selected from the group consisting of Sr, Ba, and Pb, the metal element R is at least one element selected from the group consisting of rare earth elements including Y and must contain La, and the metal element M is at least one element selected from the group consisting of rare earth elements including Y and must contain La. The metal element M is at least one element selected from the group consisting of Co, Ni, Zn, Al, Cu, and Cr and essentially contains Co, and when the atomic ratio of the metal elements is represented by formula (1), c, a, r, b, f, and m satisfy the following formulae (2) to (8).
本发明涉及一种铁氧体烧结磁铁、铁氧体颗粒、粘结磁铁以及旋转电机。该磁铁是含有具有磁铅石型的晶体结构的铁氧体相的铁氧体烧结磁铁，其中，至少含有Ca、金属元素A、金属元素R、Bi、Fe、及金属元素M，金属元素A为选自Sr、Ba及Pb中的至少一种元素，金属元素R为选自包含Y的稀土元素中的至少一种元素且必须含有La，金属元素M为选自Co、Ni、Zn、Al、Cu及Cr中的至少一种元素且必须含有Co，在以(1)式表示金属元素的原子比率时，(1)式中，c、a、r、b、f及m满足下述(2)～(8)式。
Ferrite sintered magnet, ferrite particles, bonded magnet, and rotating electrical machine
铁氧体烧结磁铁、铁氧体颗粒、粘结磁铁及旋转电机
OMURA MASASHI (Autor:in)
30.09.2022
Patent
Elektronische Ressource
Chinesisch
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