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MnZnNiCo ferrite material and preparation method thereof

A technology of ferrite materials and oxides, applied in the field of MnZnNiCo ferrite materials and their preparation, can solve the problems of no mention of additives, research, etc., achieve high temperature saturation magnetic flux density, easy access to raw materials, and low loss Effect

Inactive Publication Date: 2018-11-02
苏州天源磁业股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Chinese patent applications (CN200710019717.0), (CN201110095323.X), (CN201210041753.8), (CN201110260074.5), (CN201210222035.0), (CN201710895550.8), etc. by selecting the main component composition, additive design and combination Realize the low loss of MnZn ferrite in the wide temperature range, but these applications did not study NiO and CoO as the main components of ferrite, nor did they mention In 2 o 3 Additives

Method used

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  • MnZnNiCo ferrite material and preparation method thereof
  • MnZnNiCo ferrite material and preparation method thereof
  • MnZnNiCo ferrite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] will consist of 54.0mol% Fe 2 o 3 , 35.7mol% of MnO, 8.0mol% of ZnO, 2.0mol% of NiO, and 0.3mol% of CoO were mixed in a sand mill for 1 hour, and then pre-fired at 850°C for 2 hours. Based on the quality of the pre-fired powder, add auxiliary components to the above-mentioned pre-fired material. The added auxiliary components are: 100*10 -6 wt% SiO 2 、800*10 -6 wt%CaCO 3 、300*10 -6 wt% Ta 2 o 5 、500*10 -6 wt%In 2 o 3 . Through the control of raw material impurities, the S element can be converted into SO 3 The meter content is controlled at 100*10 -6 wt% or less. Then carry out secondary sand grinding for 2 hours, spray granulation after adding PVA, and shape it into a standard annular magnetic core sample of Φ30 for sintering. The sintering was held at the maximum holding temperature of 1310°C for 5 hours, and then cooled to room temperature while maintaining the equilibrium oxygen partial pressure.

[0015] Use the CH2335 loss tester to test the loss Pc...

Embodiment 2

[0021] will consist of 53.5mol% Fe 2 o 3 , 36.7mol% of MnO, 8.0mol% of ZnO, 1.5mol% of NiO, and 0.3mol% of CoO were mixed in a sand mill for 1 hour, and then pre-fired at 850°C for 2 hours. Based on the quality of the pre-fired powder, add auxiliary components to the above-mentioned pre-fired material. The added auxiliary components are: 100*10 -6 wt% SiO 2 、800*10 -6 wt%CaCO 3 、300*10 -6 wt% Ta 2 o 5 、500*10 -6 wt%In 2 o 3 . Through the control of raw material impurities, the S element can be converted into SO 3 The meter content is controlled at 100*10 -6 wt% or less. Then carry out secondary sand grinding for 2 hours, spray granulation after adding PVA, and shape it into a standard annular magnetic core sample of Φ30 for sintering. The sintering was held at the maximum holding temperature of 1310°C for 5 hours, and then cooled to room temperature while maintaining the equilibrium oxygen partial pressure.

[0022] Use the CH2335 loss tester to test the loss Pc...

Embodiment 3

[0028] will consist of 54.3mol% Fe 2 o 3 , 37.3mol% of MnO, 6.0mol% of ZnO, 2.0mol% of NiO, and 0.4mol% of CoO were mixed in a sand mill for 1 hour, and then calcined at 850°C for 2 hours. Based on the quality of the pre-fired powder, add auxiliary components to the above-mentioned pre-fired material. The added auxiliary components are: 100*10 -6 wt% SiO 2 、800*10 -6 wt%CaCO 3 、300*10 -6 wt% Ta 2 o 5 、500*10 -6wt%In 2 o 3 . Through the control of raw material impurities, the S element can be converted into SO 3 The meter content is controlled at 100*10 -6 wt% or less. Then carry out secondary sand grinding for 2 hours, spray granulation after adding PVA, and shape it into a standard annular magnetic core sample of Φ30 for sintering. The sintering was held at the maximum holding temperature of 1310°C for 5 hours, and then cooled to room temperature while maintaining the equilibrium oxygen partial pressure.

[0029] Use the CH2335 loss tester to test the loss Pcv ...

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Abstract

The invention discloses a MnZnNiCo ferrite material and a preparation method thereof. The MnZnNiCo ferrite material consists of main components and auxiliary components, wherein based on oxide, the main components comprise 53.5 to 54.5 percent by mol of Fe2O3, 5.5 to 8.5 percent by mol of ZnO, 0.5 to 2.5 percent by mol of NiO, 0.1 to 0.4 percent by mol of CoO and the balance of MnO; and based on the total weight of the main components, the auxiliary components comprise 50*10<-6> to 150*10<-6> percent by weight of SiO2, 100*10<-6> to 1200*10<-6> percent by weight of CaCO3, 50*10<-6> to 500*10<-6> percent by weight of Ta2O5 and 100*10<-6> to 800*10<-6> percent by weight of In2O3. Furthermore, the content of the impurity S element in the material is controlled to be less than 100*10<-6> percent by weight based on SO3.

Description

technical field [0001] The invention belongs to the field of soft magnetic ferrite materials, in particular to a MnZnNiCo ferrite material and a preparation method thereof. Background technique [0002] With the increasing shortage of oil resources in the world and the increasingly stringent environmental protection requirements for automobile emissions, electric vehicles (Electric Vehicle, EV), fuel cell electric vehicles (Fuel Cell Electric Vehicle, FCEV) and hybrid electric vehicles (Hybrid Electric Vehicle, HEV) has become the focus of the world's major automobile manufacturers to pay close attention to and step up development. Electric vehicles and hybrid vehicles will undoubtedly become the mainstream of future vehicles, and these types of vehicles will use more high-tech power supply systems and electronic systems, and these systems will undoubtedly use magnetic components. As an electronic functional material with excellent high-frequency electrical characteristics,...

Claims

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Application Information

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IPC IPC(8): C04B35/26C04B35/622
CPCC04B35/2633C04B35/622C04B2235/3208C04B2235/3217C04B2235/3251C04B2235/3262C04B2235/3272C04B2235/3275C04B2235/3279C04B2235/3284C04B2235/3286
Inventor 颜冲高庞张建明王育伟张维
Owner 苏州天源磁业股份有限公司