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Ni-Zn soft magnetic ferrite material and preparation method thereof

A technology of soft ferrite and raw materials, applied in the field of Ni-Zn soft ferrite material and its preparation, can solve the problems that high-frequency, ultra-low loss Ni-Zn soft ferrite material cannot meet the demand, and achieve high saturation Effects of magnetic flux density, high resistivity, and low magnetic loss

Inactive Publication Date: 2015-11-18
ZHONGDE ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the rapid development of industries such as smart phones and the Internet of Things, the wave-absorbing materials on mobile phone wireless chargers and electronic tags have been rapidly developed, and high-frequency, ultra-low-loss Ni-Zn soft magnetic ferrite materials are increasingly unable to meet the demand.

Method used

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  • Ni-Zn soft magnetic ferrite material and preparation method thereof

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Effect test

Embodiment 1

[0027] A kind of Ni-Zn soft magnetic ferrite material, its raw material comprises by mole:

[0028] Fe 2 o 3 52 parts; NiO42 parts; ZnO5 parts; SnO 2 0.0001 parts; CaCO 3 0.0006 parts; Nb2O50.0001 parts; SiO20.0002 parts;

[0029] Modified PVA solution, the content of the modified PVA solution accounts for 10wt% of the total amount of raw materials.

Embodiment 2

[0031] A kind of Ni-Zn soft magnetic ferrite material, its raw material comprises by mole:

[0032] Fe 2 o 3 55 parts; NiO39 parts; ZnO8 parts; SnO 2 0.0006 parts; CaCO 3 0.0001 copies; Nb 2 o 5 0.0002 parts; SiO 2 0.0001 copies;

[0033] Modified PVA solution, the content of the modified PVA solution accounts for 5wt% of the total amount of raw materials.

Embodiment 3

[0035] A kind of Ni-Zn soft magnetic ferrite material, its raw material comprises by mole:

[0036] Fe 2 o 3 53 parts; NiO40 parts; ZnO5.2 parts; SnO 2 0.00012 parts; CaCO 3 0.00013 copies; Nb 2 o 5 0.00012 parts; SiO 2 0.00012 copies;

[0037] Modified PVA solution, the content of the modified PVA solution accounts for 6wt% of the total amount of raw materials.

[0038] The raw material of described modified PVA solution comprises by weight: 21 parts of PVA, 43 parts of water, 1.2 parts of modifier neopentyl glycol, 1.1 parts of modifier methylpropanediol, 1.2 parts of preservative salicylic acid, 0.6 parts Emulsifier, 2.1 parts of polycarbosilane, 2.5 parts of triethanolamine, 1.2 parts of glycerol.

[0039] During the preparation of the modified PVA solution, mix PVA, water, triethanolamine and glycerin evenly, heat up from room temperature to 62°C and continue to stir for 32min, then cool down to 46°C, add neopentyl glycol, methyl propylene glycol, Emulsifier, pol...

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Abstract

The invention discloses an Ni-Zn soft magnetic ferrite material comprising the raw materials in parts by mole: 52-55 parts of Fe2O3, 39-42 parts of NiO, 5-8 parts of ZnO, 0.0001-0.0006 part of SnO2, 0.0001-0.0006 part of CaCO3, 0.0001-0.0002 part of Nb2O5, 0.0001-0.0002 part of SiO2, and a modified PVA solution, wherein the content of the modified PVA solution accounts for 5-10 wt% of the total amount of the raw materials. The invention also provides a preparation method of the Ni-Zn soft magnetic ferrite material. The preparation method is simple, the product electrical resistivity is high, and the Ni-Zn soft magnetic ferrite material has good performance of high frequency, high saturation magnetic flux density and low magnetic loss.

Description

technical field [0001] The invention relates to the technical field of soft ferrite materials, in particular to a Ni-Zn soft ferrite material and a preparation method. Background technique [0002] The application of soft magnetic materials in industry began at the end of the 19th century, with the rise of electric power and telecommunication technology, and its application range is extremely wide. Soft magnetic materials are not only used in the fields of home appliances, information technology, automobiles and other supporting fields, but more importantly, soft magnetic materials, as the main raw materials for the production of electronic components, have brought a steady stream of demand for them. Soft magnetic ferrite is a ferrimagnetic oxide mainly composed of Fe2O3, including Mn-Zn, Cu-Zn, Ni-Zn, etc. The resistivity of Ni-Zn ferrite is 102-104 ohm / m. The loss in the radio frequency band of 100kHz-10 MHz is small, and it is mostly used in radio antenna coils and radio...

Claims

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Application Information

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IPC IPC(8): C04B35/26C04B35/622
Inventor 沈建元费先山吴传顺周其慧徐焕云
Owner ZHONGDE ELECTRONICS
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