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Manganese-zinc high-conductivity soft magnetic ferrite material, preparation method and applications thereof

A soft ferrite, high-conductivity technology, applied in the manufacture of inductors/transformers/magnets, inorganic material magnetism, electrical components, etc. Permeability properties, good grain size and density, effect of high Curie temperature

Inactive Publication Date: 2019-11-19
RUYUAN DONGYANGGUANG MAGNETIC MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although many ferrite core materials in the current technology have relatively high initial magnetic permeability, their Curie temperature is relatively low. After exceeding the Curie temperature, the performance fails and cannot work normally; although some products have a relatively high Curie temperature , but the magnetic permeability is low
CN101106003A discloses a Mn-Zn ferrite with ultra-high magnetic permeability and high Curie temperature and its preparation method. The specific temperature it can achieve is only 130°C, which cannot reach the current maximum temperature of 180°C for peripheral components of automobile engines. requirements for use

Method used

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  • Manganese-zinc high-conductivity soft magnetic ferrite material, preparation method and applications thereof

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Effect test

Embodiment 1

[0036] A manganese-zinc high-conductivity soft ferrite material, its raw material includes main components and auxiliary components, wherein the main components include the following molar percentage components: Fe 2 o 3 53%, MnO 31%, ZnO 16%, the mass percent of the subcomponent components is: Ca 2 CO 3 0.1t%, Bi 2 o 3 0.03%, MoO 3 0.03%, SiO 2 0.3%, the mass percentage of its auxiliary components is the percentage relative to the total mass of the main component, and the density of the soft ferrite material is 5.05g / cm 3 , the grain size of the soft ferrite material is 40 μm.

Embodiment 2

[0038] A manganese-zinc high-conductivity soft ferrite material, its raw material includes main components and auxiliary components, wherein the main components include the following molar percentage components: Fe 2 o 3 54%, MnO 31%, ZnO 15%, the mass percentage of the subcomponent components is: Ca 2 CO 3 0.1t%, Bi 2 o 3 0.03%, MoO 3 0.03%, SiO 2 0.3%, the mass percentage of its auxiliary component is the percentage of the total mass of the main component, and the density of the soft ferrite material is 5.01g / cm 3, the grain size of the soft ferrite material is 40 μm.

Embodiment 3

[0040] A manganese-zinc high-conductivity soft ferrite material, its raw material includes main components and auxiliary components, wherein the main components include the following molar percentage components: Fe 2 o 3 53%, MnO 30.5%, ZnO 16.5%, the mass percent of the subcomponent components is: Ca 2 CO 3 0.1t%, Bi 2 o 3 0.03%, MoO 3 0.03%, SiO 2 0.3%, the mass percentage of its auxiliary component is the percentage of the total mass of the main component, and the density of the soft ferrite material is 5.0g / cm 3 , the grain size of the soft ferrite material is 30 μm.

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Abstract

The invention discloses a manganese-zinc high-conductivity soft magnetic ferrite material, a preparation method and applications thereof, wherein the soft magnetic ferrite material comprises a main component and a sub-component, the main component comprises Fe2O3, MnO and ZnO, and the sub-component comprises Ca2CO3, Bi2O3, MoO3 and SiO2. According to the present invention, the soft magnetic ferrite material has a Curie temperature of 190 DEG C, a magnetic permeability (10 KHz, 0.1 V) of 9897, and a magnetic permeability (200 KHz, 0.1 V) of 10663; by optimizing the pre-firing temperature and the secondary ball milling process, the grain size and the compactness of the product can be well controlled; and by comprehensively controling the pre-firing temperature, the sintering temperature andthe particle size of the powder, the initial magnetic permeability is improved is increased, such that the product has a high Curie temperature, especially is suitable for working environments with atemperature of below 180 DEG C, and can be widely used in the preparation of vehicle electronic devices.

Description

technical field [0001] The invention relates to the technical field of electronic materials, more specifically, to a manganese-zinc high-conductivity soft ferrite material and a preparation method and application thereof. Background technique [0002] Electronic materials are the material basis for the development of modern electronics industry and science and technology. They are mainly a class of materials used in electronic technology and microelectronic technology, including dielectric materials, semiconductor materials, piezoelectric and ferroelectric materials, conductive metals and their alloys. Materials, magnetic materials, optoelectronic materials and other related materials, as one of the electronic materials, ferrite core materials are widely used in communication equipment and automotive electronics. The application of soft magnetic materials in industry began at the end of the 19th century, and the scope of application is extremely wide. It is not only used in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/38C04B35/622C04B35/626H01F1/36H01F41/02
CPCC04B35/2633C04B35/2658C04B35/622C04B35/6261C04B35/62675H01F1/36H01F41/0246C04B2235/3208C04B2235/3298C04B2235/3262C04B2235/3284C04B2235/3256C04B2235/3418C04B2235/77C04B2235/786C04B2235/6562C04B2235/6567
Inventor 刘培元傅膑盘良三张凯李俊孔令才谢振华万里云
Owner RUYUAN DONGYANGGUANG MAGNETIC MATERIAL
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