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Permanent magnetic ferrite composite material
The invention discloses a permanent magnetic ferrite composite material. The permanent magnetic ferrite composite material comprises, by weight, 150 to 160 parts of iron trioxide, 10 to 15 parts of nano ceramic, 1 to 4 parts of lanthanum oxide, 0.2 to 0.5 part of silicon dioxide, 3 to 6 parts of barium oxide, 0.02 to 0.08 part of aluminum oxide, 2 to 4 parts of zinc oxide, 1 to 4 parts of strontium carbonate, and 0.5 to 1.5 parts of calcium stearate. According to a preparation method, iron trioxide is taken as the main raw material of the permanent magnetic ferrite composite material; nano ceramic is added; the permanent magnetic ferrite composite material is obtained via presintering, fine grinding, moulding, and sintering; parameter indexes, such as residual magnetism, coercivity, intrinsic coercive force, and maximum magnetic energy product, are obviously better than that of ordinary ferrite material; overall magnetic performance is improved; relatively high using requirements can be satisfied; and after acid treatment, ceramic is excellent in compactness, and is capable of reducing porosity and assisting crystal forming in sintering processes.
Permanent magnetic ferrite composite material
The invention discloses a permanent magnetic ferrite composite material. The permanent magnetic ferrite composite material comprises, by weight, 150 to 160 parts of iron trioxide, 10 to 15 parts of nano ceramic, 1 to 4 parts of lanthanum oxide, 0.2 to 0.5 part of silicon dioxide, 3 to 6 parts of barium oxide, 0.02 to 0.08 part of aluminum oxide, 2 to 4 parts of zinc oxide, 1 to 4 parts of strontium carbonate, and 0.5 to 1.5 parts of calcium stearate. According to a preparation method, iron trioxide is taken as the main raw material of the permanent magnetic ferrite composite material; nano ceramic is added; the permanent magnetic ferrite composite material is obtained via presintering, fine grinding, moulding, and sintering; parameter indexes, such as residual magnetism, coercivity, intrinsic coercive force, and maximum magnetic energy product, are obviously better than that of ordinary ferrite material; overall magnetic performance is improved; relatively high using requirements can be satisfied; and after acid treatment, ceramic is excellent in compactness, and is capable of reducing porosity and assisting crystal forming in sintering processes.
Permanent magnetic ferrite composite material
ZHOU LIANMING (author) / ZHOU YUANYUAN (author) / CHENG AIJUN (author)
2015-09-09
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
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