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Preparation method of high-coercivity strontium-barium ferrite magnetic material
The invention relates to a preparation method of a high-coercivity strontium-barium ferrite magnetic material. The main raw materials of the magnetic material have the following atom proportion: Fe(12-b-c-d-e)Sr(1-a)BaaCabCecPdO19, wherein a is equal to 0.3-0.7, b is equal to 1-2, c is equal to 0.5-1, and d is equal to 0.5-1.5. The method comprises the following steps: (1) material preparation; (2) material mixing; (3) primary sintering and crushing; (4) blank preparation; and (5) secondary sintering. The prepared semi-hard magnetic material is prepared by adopting a proper material proportion and modified technology, and rare earth element Ce is added during the preparation so as to modify the material, so that the magnetic material has good coercivity.
Preparation method of high-coercivity strontium-barium ferrite magnetic material
The invention relates to a preparation method of a high-coercivity strontium-barium ferrite magnetic material. The main raw materials of the magnetic material have the following atom proportion: Fe(12-b-c-d-e)Sr(1-a)BaaCabCecPdO19, wherein a is equal to 0.3-0.7, b is equal to 1-2, c is equal to 0.5-1, and d is equal to 0.5-1.5. The method comprises the following steps: (1) material preparation; (2) material mixing; (3) primary sintering and crushing; (4) blank preparation; and (5) secondary sintering. The prepared semi-hard magnetic material is prepared by adopting a proper material proportion and modified technology, and rare earth element Ce is added during the preparation so as to modify the material, so that the magnetic material has good coercivity.
Preparation method of high-coercivity strontium-barium ferrite magnetic material
XU WENPING (Autor:in)
08.04.2015
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
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