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A ferrite material with high magnetic permeance

A ferrite material and high magnetic permeability technology, applied in the field of magnetic core materials, can solve the problems of unsatisfactory comprehensive performance of ferrite materials

Inactive Publication Date: 2014-10-22
ZHONGDE ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the prior art, the overall performance of ferrite materials is not ideal enough and needs to be improved.

Method used

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  • A ferrite material with high magnetic permeance

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A high magnetic permeability ferrite material, its raw materials include: Fe 2 o 3 , MnO, ZnO, sodium dodecylbenzenesulfonate, CaO, SiO 2 , V 2 o 5 、MoO 3 、 Bi 2 o 3 ,P 2 o 5 , where Fe 2 o 3 :MnO:ZnO molar ratio is 53.5:23.5:23, with Fe 2 o 3 , MnO, ZnO three quality and as the basis, sodium dodecylbenzenesulfonate, CaO, SiO 2 , V 2 o 5 、MoO 3 、 Bi 2 o 3 ,P 2 o 5 The mass fractions are 0.9%, 0.026%, 0.0028%, 0.018%, 0.013%, 0.026%, 0.022%, respectively;

[0018] According to above-mentioned raw material proportioning, prepare according to the following steps:

[0019] S1: Weigh each raw material and measure Fe 2 o 3 , MnO, ZnO, CaO, SiO 2 , V 2 o 5 、MoO 3 、 Bi 2 o 3 ,P 2 o 5 Each powder is subjected to ball milling, pre-calcination, and secondary ball milling for use, wherein, during the secondary ball milling process, sodium dodecylbenzenesulfonate is added as a dispersant;

[0020] S2: Granulation: mix the polyethylene solvent with a ma...

Embodiment 2

[0024] A high magnetic permeability ferrite material, its raw materials include: Fe 2 o 3 , MnO, ZnO, sodium dodecylbenzenesulfonate, CaO, SiO 2 , V 2 o 5 、MoO 3 、 Bi 2 o 3 ,P 2 o 5 , where Fe 2 o 3 : The molar ratio of MnO: ZnO is 53:24:23.5, with Fe 2 o 3 , MnO, ZnO three quality and as the basis, sodium dodecylbenzenesulfonate, CaO, SiO 2 , V 2 o 5 、MoO 3 、 Bi 2 o 3 ,P 2 o 5 The mass fractions are 1.3%, 0.029%, 0.0039%, 0.022%, 0.017%, 0.022%, 0.029%, respectively;

[0025] According to above-mentioned raw material proportioning, prepare according to the following steps:

[0026] S1: Weigh each raw material and measure Fe 2 o 3 , MnO, ZnO, CaO, SiO 2 , V 2 o 5 、MoO 3 、 Bi 2 o 3 ,P 2 o 5 Each powder is subjected to ball milling, pre-calcination, and secondary ball milling for use, wherein, during the secondary ball milling process, sodium dodecylbenzenesulfonate is added as a dispersant;

[0027] S2: Granulation: mix the polyethylene solvent with...

Embodiment 3

[0031] A high magnetic permeability ferrite material, its raw materials include: Fe 2 o 3 , MnO, ZnO, sodium dodecylbenzenesulfonate, CaO, SiO 2 , V 2 o 5 、MoO 3 、 Bi 2 o 3 ,P 2 o 5 , where Fe 2 o 3 :MnO:ZnO molar ratio is 54:22.5:23.5, with Fe 2 o 3 , MnO, ZnO three quality and as the basis, sodium dodecylbenzenesulfonate, CaO, SiO 2 , V 2 o 5 、MoO 3 、 Bi 2 o 3 ,P 2 o 5 The mass fractions are 1.5%, 0.0045%, 0.023%, 0.022%, 0.019%, 0.025%, 0.022%, respectively;

[0032] According to above-mentioned raw material proportioning, prepare according to the following steps:

[0033] S1: Weigh each raw material and measure Fe 2 o 3 , MnO, ZnO, CaO, SiO 2 , V 2 o 5 、MoO 3 、 Bi 2 o 3 ,P 2 o 5 Each powder is subjected to ball milling, pre-calcination, and secondary ball milling for use, wherein, during the secondary ball milling process, sodium dodecylbenzenesulfonate is added as a dispersant;

[0034] S2: Granulation: mix the polyethylene solvent with a ma...

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Abstract

A ferrite material with high magnetic permeance is disclosed. Raw materials of the ferrite material comprise Fe2O3, MnO, ZnO, sodium dodecylbenzenesulfonate, CaO, SiO2, V2O5, MoO3, Bi2O3 and P2O5, wherein the molar ratio of the Fe2O3, the MnO and the ZnO is (50-55):(20-27):(20-28), and based on the weight sum of the Fe2O3, the MnO and the ZnO, the weight percentages of the sodium dodecylbenzenesulfonate, the CaO, the SiO2, the V2O5, the MoO3, the Bi2O3 and the P2O5 are respectively 0.9-1.5%, 0.025-0.035%, 0.002-0.013%, 0.018-0.022%, 0.01-0.02%, 0.02-0.03% and 0.02-0.03%. The ferrite material is prepared by steps of weighing each of the raw materials, granulating, performing dry pressing and moulding, sintering and cooling.

Description

technical field [0001] The invention belongs to the technical field of magnetic core materials, in particular to a ferrite material with high magnetic permeability. Background technique [0002] Ferrite is a non-metallic magnetic material developed in the 1940s. Because of its appearance similar to ceramics, it is also called "magnetic porcelain". Ferrite material has high dielectric properties because its resistivity is much larger than other metal materials, and it has good performance at high frequencies, and it performs well in the field of high frequency and weak current. With the increasing popularity of digital information technology, the requirements for high-permeability ferrite materials are also increasing, and high-permeability ferrite materials are required to have high magnetic permeability, high magnetic induction, and low loss. However, in the prior art, the overall performance of the ferrite material is not ideal enough and needs to be improved. Contents...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/26C04B35/622
Inventor 李前军沈建元王晓祥蒲成刚刘晶
Owner ZHONGDE ELECTRONICS
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