Ultra-high frequency soft ferrite material and preparation method of magnetic core

A soft ferrite and ultra-high frequency technology, applied in the field of soft ferrite, can solve the problems of high loss and low magnetic permeability, and achieve the effects of reduced porosity, high magnetic permeability, and fine and uniform grains

Active Publication Date: 2022-01-07
湖北华磁电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide ultra-high frequency soft ferrite materials and a method for preparing magnetic cores, aiming to solve the problems of low magnetic permeability and high loss at ultra-high frequencies

Method used

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  • Ultra-high frequency soft ferrite material and preparation method of magnetic core

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Experimental program
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Effect test

Embodiment 1

[0038] This embodiment provides an ultra-high frequency soft ferrite material,

[0039] The main components are in parts by mole, including:

[0040] Fe 2 o 3 67 mol

[0041] BaCO 3 25mol

[0042] Flake Co 3 o 4 7 mol

[0043] Relative to the total amount of main components, the weight percentages of each additive component are respectively:

[0044] Na 2 CO 3 400PPM

[0045] SrCO 3 100PPM

[0046] SM 2 o 3 100PPM

[0047] TiZn100PPM

[0048] Li 2 CO 3 100PPM

[0049]nano-SiO 2 100PPM

[0050] The nano-SiO 2 The size is 50-100nm.

[0051] A method for preparing an ultra-high frequency soft ferrite core, comprising the following steps:

[0052] S1, according to the amount of the ultra-high frequency soft magnetic ferrite material described in any of the above, weigh each main component, then mix each main component, and get M type and Y type through wet ball milling, drying, pre-calcination, and grinding Barium ferrite magnetic powder;

[0053] S2, acc...

Embodiment 2

[0058] The main components are in parts by mole, including:

[0059] Fe 2 o 3 69 mol

[0060] BaCO 3 23 mol

[0061] Flake Co 3 o 4 9 mol

[0062] Relative to the total amount of main components, the weight percentages of each additive component are respectively:

[0063] Na 2 CO 3 100PPM

[0064] SrCO 3 800PPM

[0065] SM 2 o 3 30PPM

[0066] TiZn300PPM

[0067] Li 2 CO 3 300PPM

[0068] nano-SiO 2 50PPM

[0069] The nano-SiO 2 The size is 50-100nm.

[0070] A method for preparing an ultra-high frequency soft ferrite core, comprising the following steps:

[0071] S1, according to the amount of the ultra-high frequency soft magnetic ferrite material described in any of the above, weigh each main component, then mix each main component, and get M type and Y type through wet ball milling, drying, pre-calcination, and grinding Barium ferrite magnetic powder;

[0072] S2, according to the amount of the ultra-high frequency soft magnetic ferrite material de...

Embodiment 3

[0077] The main components are in parts by mole, including:

[0078] Fe 2 o 3 68 mol

[0079] BaCO 3 24 mol

[0080] Flake Co 3 o 4 8 mol

[0081] Relative to the total amount of main components, the weight percentages of each additive component are respectively:

[0082] Na 2 CO 3 300PPM

[0083] SrCO 3 600PPM

[0084] SM 2 o 3 50PPM

[0085] TiZn200PPM

[0086] Li 2 CO 3 200PPM

[0087] nano-SiO 2 70PPM

[0088] The nano-SiO 2 The size is 50-100nm.

[0089] A method for preparing an ultra-high frequency soft ferrite core, comprising the following steps:

[0090] S1, according to the amount of the ultra-high frequency soft magnetic ferrite material described in any of the above, weigh each main component, then mix each main component, and get M type and Y type through wet ball milling, drying, pre-calcination, and grinding Barium ferrite magnetic powder;

[0091] S2, according to the amount of the ultra-high frequency soft magnetic ferrite material de...

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Abstract

The invention relates to the technical field of soft magnetic ferrite, and discloses a method for preparing an ultra-high frequency soft magnetic ferrite material and a magnetic core. The main components include: Fe 2 o 3 67~69mol; BaCO 3 23~25mol; flaky Co 3 o 4 7~9mol; Relative to the total amount of main components, the weight percentages of each additive component are respectively: Na 2 CO 3 100~400PPM; SrCO 3 100~800PPM; Sm 2 o 3 30~100PPM; TiZn 100~300PPM; Li 2 CO 3 100-300PPM, the present invention has the advantages of high magnetic permeability, low loss and high frequency.

Description

technical field [0001] The invention relates to the technical field of soft ferrite, in particular to a preparation method of an ultra-high frequency soft ferrite material and a magnetic core. Background technique [0002] After realizing the integration of resistors, capacitors, semiconductors and optoelectronic devices, how to apply soft magnetic materials in the ultra-high frequency band and realize the integration of magnetic electronic devices has become a bottleneck restricting the high frequency and integration of electronic information technology. The main reason is that the magnetic permeability of the magnetic materials used for inductors and transformers decreases at high frequencies, so it is the future to further increase the magnetic permeability, increase and widen the operating frequency, reduce losses, meet the wide temperature range and miniaturization development Goals. Contents of the invention [0003] The purpose of the present invention is to provid...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/26C04B35/622C04B35/63C04B35/634
CPCC04B35/2633C04B35/622C04B35/6303C04B35/63488C04B2235/3272C04B2235/3215C04B2235/3275C04B2235/3201C04B2235/3213C04B2235/3224C04B2235/3203C04B2235/3418C04B2235/404C04B2235/40C04B2235/5445C04B2235/5454C04B2235/602C04B2235/656C04B2235/6562C04B2235/6565C04B2235/6567C04B2235/786
Inventor 黄刚李崇华廖继红卢明超
Owner 湖北华磁电子科技有限公司
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