NiCuZn Ferrite material and preparation method and application thereof

A technology of ferrite materials and main materials, which is applied in the direction of inorganic material magnetism, inductor/transformer/magnet manufacturing, waveguide devices, etc., can solve the problems of high ferromagnetic resonance line width, easy to appear porous structure, low density, etc. achieve performance-enhancing effects

Inactive Publication Date: 2018-01-23
CHINA ZHENHUA GRP XINYUN ELECTRONICS COMP ANDDEV CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, it is prone to porous structure during sintering,...

Method used

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  • NiCuZn Ferrite material and preparation method and application thereof
  • NiCuZn Ferrite material and preparation method and application thereof

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preparation example Construction

[0026] The present invention also provides a kind of preparation method of above-mentioned NiCuZn ferrite material, it comprises:

[0027] The main material is mixed with deionized water and ball milled for the first time to obtain a slurry.

[0028] Among them, in a preferred embodiment of the present invention, the main material and deionized water are mixed at a weight ratio of 1:1.5 and then ball milled for the first time. Under this ratio, dust is effectively avoided, waste of raw materials is avoided, and Fe 2 o 3 , CuO, ZnO and NiO are fully mixed and uniform, and the solid phase reaction is sufficient during pre-burning. Preferably, the first ball milling time is 1-4 hours, so that the main ingredients are fully mixed and even. At the same time, deionized water is used to effectively avoid the introduction of impurities and prevent the performance of the final NiCuZn ferrite material from being affected.

[0029] Preferably, in a preferred embodiment of the present ...

Embodiment 1

[0048] A kind of NiCuZn ferrite material, it is made by following method:

[0049] After the main material is mixed with deionized water, steel balls are used in the ball mill for the first time for 3 hours to mix the powder evenly to obtain a slurry. After drying, it is placed in a pre-calcined furnace and kept at 900°C for 2.5 hours to obtain the pre-calcined main material. material.

[0050] The calcined main material is mixed with the dopant to obtain the first mixed material.

[0051] The first mixed material is ball-milled for the second time in a ball mill with zirconium balls for 6 hours to a particle size of 0.8-1.2 μm, then mixed evenly with the binder, granulated, pressed into a blank, and placed in a sintering furnace Debinding, heat preservation at 1040°C for 4 hours under air atmosphere.

[0052] Among them, the main material contains 49mol% Fe in terms of oxide content 2 o 3 , 6mol% of CuO, 19.5mol% of ZnO, 25.5mol% of NiO; the dopant contains 0.15wt% of Bi ...

Embodiment 2

[0054] A kind of NiCuZn ferrite material, it is made by following method:

[0055] After the main material is mixed with deionized water, steel balls are used in the ball mill for the first time for 3 hours to mix the powder evenly to obtain a slurry. After drying, it is placed in a pre-calcined furnace and kept at 900°C for 2.5 hours to obtain the pre-calcined main material. material.

[0056] The calcined main material is mixed with the dopant to obtain the first mixed material.

[0057] The first mixed material is ball-milled for the second time in a ball mill with zirconium balls for 6 hours to a particle size of 0.8-1.2 μm, then mixed evenly with the binder, granulated, pressed into a blank, and placed in a sintering furnace Debinding and heat preservation at 1080°C for 4 hours in an air atmosphere.

[0058] Among them, the main material contains 49mol% Fe in terms of oxide content 2 o 3 , 6mol% of CuO, 19.5mol% of ZnO, 25.5mol% of NiO; the dopant contains 0.15wt% of ...

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Abstract

The invention relates to NiCuZn ferrite material and a preparation method and application thereof and relates to the technical field of electronic materials. The NiCuZn ferrite material mainly comprises a main material and a dopant; the main material contains, by content of oxides, 48-49mol% of Fe2O3, 4-8mol% of CuO, 18-24mol% of ZnO, and the balance of NiO; the dopant contains, by the main material held to the temperature of 880-940 DEG C for 2-3 h, Bi2O3, CaO and Co2O3; the NiCuZn ferrite material has excellent features. The preparation method comprises: mixing the main material with deionized water, ball milling, drying, pre-sintering, adding the dopant, ball milling gain, adding a binder, granulating, compressing to obtain a base, sintering the base to obtain the NiCuZn ferrite material; integral performance of NiCuZn ferrite is effectively improved; through the application of the NiCuZn ferrite material in the production of Ka-band microwave devices, properties of the Ka-band microwave devices are effectively improved.

Description

technical field [0001] The invention relates to the technical field of electronic materials, and in particular to a NiCuZn ferrite material and a preparation method and application thereof. Background technique [0002] Ka-band (26.5-40GHz) is a very important part of the millimeter-wave frequency band. It has the characteristics of wide spectrum range, large information capacity, strong penetration, and less interference. Microwave devices related to this frequency band are widely used in military and civilian fields. Microwave ferrite devices, as a very important branch of microwave devices, are indispensable components in microwave-millimeter wave electronic information communication equipment and systems. They have been widely used in radar, microwave communication, satellite communication, navigation, Electronic countermeasures and microwave measurement systems and other fields. The bandwidth, insertion loss, isolation, differential phase shift and other properties of ...

Claims

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Application Information

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IPC IPC(8): C04B35/30C04B35/622H01F1/36H01F41/00H01P1/19H01P1/217H01P1/36H01P1/38
Inventor 燕周民王五松褚涛张元松彭丹
Owner CHINA ZHENHUA GRP XINYUN ELECTRONICS COMP ANDDEV CO LTD
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