Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Lanthanum-copper-doped sintered permanent magnetic ferrite material and magnet prepared from lanthanum-copper-doped sintered permanent magnetic ferrite material
The invention discloses a lanthanum-copper-doped sintered permanent magnetic ferrite material and a magnet prepared from the lanthanum-copper-doped sintered permanent magnetic ferrite material. The sintered permanent magnetic ferrite material takes M-type Sr ferrite with a hexagonal crystal structure as a main phase; The content of CuO is 0.05-1.2% by mass, the content of Fe2O3 is 87-90% by mass, the content of SrO is 9-10% by mass, and the content of rare earth oxides including La2O3 is 0.1-2.4% by mass; and when the content of the rare earth element is denoted as M1 in terms of mole and the content of Cu is denoted as M2 in terms of mole, M1/M2 is 0.5 or more. According to the invention, the residual magnetic flux density Br and the intrinsic coercive force HcJ are high, and the cost is low.
本发明公开了一种镧铜掺杂的烧结永磁铁氧体材料及其制备的磁体，该烧结永磁铁氧体材料是以具有六方晶结构的M型Sr铁氧体作为主相的烧结永磁铁氧体材料；CuO含量为0.05～1.2质量％，Fe2O3含量为87～90质量％，SrO含量为9～10质量％，包括La2O3在内的稀土氧化物含量为0.1～2.4质量％；在将稀土元素的含量按摩尔换算记为M1，并将Cu的含量按摩尔换算记为M2的情况下，M1/M2为0.5以上。本发明剩余磁通密度Br以及内禀矫顽力HcJ高，并且成本低廉。
Lanthanum-copper-doped sintered permanent magnetic ferrite material and magnet prepared from lanthanum-copper-doped sintered permanent magnetic ferrite material
The invention discloses a lanthanum-copper-doped sintered permanent magnetic ferrite material and a magnet prepared from the lanthanum-copper-doped sintered permanent magnetic ferrite material. The sintered permanent magnetic ferrite material takes M-type Sr ferrite with a hexagonal crystal structure as a main phase; The content of CuO is 0.05-1.2% by mass, the content of Fe2O3 is 87-90% by mass, the content of SrO is 9-10% by mass, and the content of rare earth oxides including La2O3 is 0.1-2.4% by mass; and when the content of the rare earth element is denoted as M1 in terms of mole and the content of Cu is denoted as M2 in terms of mole, M1/M2 is 0.5 or more. According to the invention, the residual magnetic flux density Br and the intrinsic coercive force HcJ are high, and the cost is low.
本发明公开了一种镧铜掺杂的烧结永磁铁氧体材料及其制备的磁体，该烧结永磁铁氧体材料是以具有六方晶结构的M型Sr铁氧体作为主相的烧结永磁铁氧体材料；CuO含量为0.05～1.2质量％，Fe2O3含量为87～90质量％，SrO含量为9～10质量％，包括La2O3在内的稀土氧化物含量为0.1～2.4质量％；在将稀土元素的含量按摩尔换算记为M1，并将Cu的含量按摩尔换算记为M2的情况下，M1/M2为0.5以上。本发明剩余磁通密度Br以及内禀矫顽力HcJ高，并且成本低廉。
Lanthanum-copper-doped sintered permanent magnetic ferrite material and magnet prepared from lanthanum-copper-doped sintered permanent magnetic ferrite material
一种镧铜掺杂的烧结永磁铁氧体材料及其制备的磁体
QUAN XIAOKANG (Autor:in) / LIU HUI (Autor:in) / WEI HANZHONG (Autor:in) / WANG JIQUAN (Autor:in) / HU GUOHUI (Autor:in)
25.06.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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