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Low-loss ferrite material and preparation method thereof

A ferrite material, low-loss technology, applied in the direction of inorganic material magnetism, chemical instruments and methods, iron compounds, etc., can solve the problems of limitations, large losses, etc., to improve reaction speed, reduce hysteresis loss, and reduce reaction the effect of time

Inactive Publication Date: 2019-05-03
ZHONGDE ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, with the development of the electronics industry and the expansion of application fields, the requirements for ferrite materials are getting higher and higher. The performance of existing ferrite materials can no longer meet the needs of the market, especially its loss during use. , which brings limitations to its application

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  • Low-loss ferrite material and preparation method thereof

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Embodiment 1

[0020] A kind of low-loss ferrite material, its raw material comprises main component and auxiliary component, and described main component comprises Fe 2 o 3 , Mn 2 o 3 , ZnO; the auxiliary components include CaO, La 2 (CO 3 ) 3 ·8H 2O, CeO 2 ·nH 2 O.

[0021] The preparation method of the low-loss ferrite material, the method comprises the following steps: Fe 2 o 3 , Mn 2 o 3 , ZnO and La 2 (CO 3 ) 3 ·8H 2 O, CeO 2 ·nH 2 O is mixed in an agate mortar, firstly ground, dried, added with CaO, secondly ground to fine powder, heat treated, mixed with lubricant and binder, three times grounded, and spray granulated to obtain a low-loss ferrite material.

Embodiment 2

[0023] A kind of low-loss ferrite material, its raw material comprises main component and auxiliary component, and described main component comprises Fe 2 o 3 , Mn 2 o 3 , ZnO; the auxiliary components include CaO, La 2 (CO 3 ) 3 ·8H 2 O, CeO 2 ·nH 2 O;

[0024] Wherein, the main component includes 53.2mol% Fe 2 o 3 , 35.8mol% Mn 2 o 3 , 11.0mol% ZnO; relative to the main component, the auxiliary components include 300ppm CaO, 200ppm La 2 (CO 3 ) 3 ·8H 2 O, 260ppm CeO 2 ·nH 2 O.

[0025] The preparation method of the low-loss ferrite material, the method comprises the following steps: Fe 2 o 3 , Mn 2 o 3 , ZnO and La 2 (CO 3 ) 3 ·8H 2 O, CeO 2 ·nH 2 O is mixed in an agate mortar, first ground, dried, added with CaO, secondly ground to fine powder, placed in a box-type resistance furnace for heat treatment, mixed with lubricant and binder, three times ground, and spray granulated to obtain Low loss ferrite material.

Embodiment 3

[0027] A kind of low-loss ferrite material, its raw material comprises main component and auxiliary component, and described main component comprises Fe 2 o 3 , Mn 2 o 3 , ZnO; the auxiliary components include CaO, La 2 (CO 3 ) 3 ·8H 2 O, CeO 2 ·nH 2 O;

[0028] Wherein, the main component includes 53.5mol% Fe 2 o 3 , 35.0mol% Mn 2 o 3 , 11.5mol% ZnO; relative to the main component, the auxiliary components include 10ppm CaO, 300ppm La 2 (CO 3 ) 3 ·8H 2 O, 100ppm CeO 2 ·nH 2 O;

[0029] The La 2 (CO 3 ) 3 ·8H 2 The preparation method of O is as follows: Add sodium bicarbonate solution to the lanthanum chloride solution at a rate of 0.07mL / s, then filter with suction, wash the obtained solid, and dry to obtain La 2 (CO 3 ) 3 ·8H 2 O;

[0030] The volume ratio of the lanthanum chloride solution and the sodium bicarbonate solution is 1:6.5; the concentration of the lanthanum chloride solution is 2mol / L; the concentration of the sodium bicarbonate soluti...

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Abstract

The invention relates to ferrite materials, in particular to a low-loss ferrite material. The low-loss ferrite material comprises main components and auxiliary components; wherein the main componentscomprise Fe2O3, Mn2O3 and ZnO; the auxiliary component comprise CaO, La2 (CO3).8 H2O and CeO2.nH2O; the invention further discloses a preparation method of the ferrite material. The low-loss ferrite material has good initial magnetic permeability and saturation flux density, and has relatively low hysteresis loss.

Description

technical field [0001] The invention relates to a ferrite material, in particular to a low-loss ferrite material and a preparation method thereof. Background technique [0002] Ferrite material, its main component often contains a specified amount of iron oxide, copper oxide, zinc oxide and nickel oxide, etc., and its auxiliary components often contain a specified amount of bismuth oxide, silicon oxide, magnesium oxide, cobalt oxide, etc., to form ferrite material. The application range of ferrite materials is extremely wide, not only in the field of home appliances, information technology, automobiles and other supporting fields, but more importantly, as the main raw material for the production of electronic components. However, with the development of the electronic industry and the expansion of application fields, the requirements for ferrite materials are getting higher and higher. The performance of existing ferrite materials can no longer meet the needs of the market,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G49/00H01F1/37
Inventor 瞿德林王久如李丛俊
Owner ZHONGDE ELECTRONICS