Low-loss soft magnetic ferrite material and preparation method thereof

A technology of soft ferrite and low loss, which is applied in the field of low loss soft ferrite material and its preparation, can solve the problem of unsatisfactory magnetic core loss, etc., and achieve high magnetic permeability, high resistivity, and high magnetic permeability Effect

Inactive Publication Date: 2015-11-11
ZHONGDE ELECTRONICS
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, the soft magnetic ferrite in the prior art is often not ideal in magnetic core loss, and it is difficult to meet the actu

Method used

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  • Low-loss soft magnetic ferrite material and preparation method thereof
  • Low-loss soft magnetic ferrite material and preparation method thereof

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Example Embodiment

[0027] Reference figure 1 , The preparation method of a low-loss soft ferrite material proposed by the present invention includes the following steps:

[0028] S1. After adding the adsorbent and emulsifier into the water and stirring uniformly, the first material is obtained after 25-40 minutes of ultrasonic dispersion;

[0029] S2. Add ferric nitrate, manganese nitrate, zinc nitrate and nickel nitrate into water to dissolve to obtain the second material;

[0030] S3. Add the second material dropwise to the first material, then evaporate and dry, then roast, and cool to obtain a powder material;

[0031] S4. Add neodymium oxide, vanadium oxide, niobium oxide, boron oxide, calcium carbonate, lithium carbonate, barium carbonate, silicon dioxide and adhesives to the powder material for spray granulation, tableting, and sintering to obtain low-loss soft Ferrite material.

Example Embodiment

[0033] Example 1

[0034] The present invention proposes a low-loss soft ferrite material. Its raw materials include main materials and auxiliary materials. The main materials include 57 parts of iron nitrate, 42 parts of manganese nitrate, 9 parts of zinc nitrate, and 10 parts of nickel nitrate. Based on the total weight of the main materials, the auxiliary materials include: neodymium oxide 300ppm, vanadium oxide 400ppm, niobium oxide 400ppm, boron oxide 700ppm, calcium carbonate 50ppm, lithium carbonate 100ppm, barium carbonate 20ppm, silicon dioxide 800ppm, adhesive 2000ppm, Adsorbent 5×10 6 ppm, 300 ppm emulsifier.

[0035] The method for preparing the above-mentioned low-loss soft ferrite material provided by the present invention includes the following steps:

[0036] S1. After adding the adsorbent and emulsifier into the water, stir uniformly, and ultrasonically disperse for 25 minutes to obtain the first material;

[0037] S2. Add ferric nitrate, manganese nitrate, zinc nitr...

Example Embodiment

[0040] Example 2

[0041] The present invention proposes a low-loss soft ferrite material. Its raw materials include main materials and auxiliary materials. The main materials include 58 parts of iron nitrate, 41 parts of manganese nitrate, 10 parts of zinc nitrate, and 9.4 parts of nickel nitrate. Based on the total weight of the main materials, the auxiliary materials include: 320ppm neodymium oxide, 360ppm vanadium oxide, 450ppm niobium oxide, 600ppm boron oxide, 100ppm calcium carbonate, 90ppm lithium carbonate, 50ppm barium carbonate, 600ppm silica, 2200ppm adhesive, Adsorbent 4×10 6 ppm, 350 ppm emulsifier.

[0042] The method for preparing the above-mentioned low-loss soft ferrite material provided by the present invention includes the following steps:

[0043] S1. After adding the adsorbent and emulsifier into the water and stirring uniformly, the first material is obtained after 40 minutes of ultrasonic dispersion, wherein the weight ratio of the adsorbent and water is 2:6;...

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Abstract

The invention discloses a low-loss soft magnetic ferrite material which comprises main materials and auxiliary materials, wherein the main materials comprise the following components in parts by mole: 57 to 60 parts of ferric nitrate, 40 to 42 parts of manganese nitrate, 9-12 parts of zinc nitrate and 8 to 10 parts of nickel nitrate; by using the total weight of the main materials as a reference, the auxiliary materials comprise the following components: 300 to 400 ppm of neodymium oxide, 300 to 400 ppm of vanadium oxide, 400 to 600 ppm of niobium oxide, 300 to 700 ppm of boron oxide, 50 to 200 ppm of calcium carbonate, 20 to 100 ppm of lithium carbonate, 20 to 80 ppm of barium carbonate, 250 to 800 ppm of silica, 2000 to 2500 ppm of an adhesive, 3*10<6> to 5*10<6> ppm of an adsorbent, 300 to 500 ppm of an emulsifier. The invention also discloses a method for preparing the low-loss soft magnetic ferrite material; the magnetic core is low in loss and the saturation induction density is high.

Description

technical field [0001] The invention relates to the technical field of soft ferrite, in particular to a low-loss soft ferrite material and a preparation method thereof. Background technique [0002] Soft ferrite refers to a magnetic material that is easily magnetized and demagnetized under the action of an external magnetic field. It is often a composite oxide obtained by sintering iron oxide and one or more other metal oxides. Soft ferrite materials are widely used basic materials in industries such as electronics, electromechanical and communication networks. They play a very important role in the development of modern industry and technology, and have made outstanding contributions to the optimization and improvement of the performance of electronic components. With the continuous development of the electronics industry, the use trend of small integration, light, thin, high frequency and low loss of electronic products, it can be foreseen that for a long time in the futur...

Claims

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Application Information

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IPC IPC(8): C04B35/26C04B35/622
Inventor 李丛俊鲍学琴张金兵毛新山蒲成刚
Owner ZHONGDE ELECTRONICS
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