Power type nickel-zinc ferrite material and preparation method thereof

Abstract

The invention discloses a power type nickel-zinc ferrite material. The power type nickel-zinc ferrite material is prepared from a main material and an auxiliary material. The main material is prepared from, by molar percentage, 48-53 mol% of Fe2O3, 18-23 mol% of NiO, 20-25 mol% of ZnO and 6-8 mol% of CuO. The auxiliary material is selected from at least one of MnO, SiO2, Bi2O3, TiO2, V2O5, Co2O3, Cr2O3, MoO3, ZrO2, Nb2O5 and WO3. The power type nickel-zinc ferrite material has high magnetic conductivity, ultrahigh saturation flux density, ultralow power loss and high high-temperature-resisting soldering tin temperature, and the application range of the nickel-zinc ferrite material can be widened. The invention further provides a preparation method of the power type nickel-zinc ferrite material. The preparation method is simple in step, high in operability and suitable for industrial production.

Description

technical field

[0001] The invention relates to the technical field of soft magnetic ferrite, in particular to a power type nickel-zinc ferrite material and a preparation method thereof. Background technique

[0002] Power ferrite is a material with high saturation magnetic induction and permeability, and low power consumption. In the case of high magnetic field strength and high frequency, the power loss can still be kept very low, and the power consumption will be maintained around a fixed value, and will not increase sharply with the increase of temperature, so that the magnetic core is in a virtuous cycle .

[0003] Compared with MnZn power ferrite, NiZn ferrite has the characteristics of high resistivity and high frequency of use. It has a wide range of applications in many fields, such as industry, agriculture, military and civilian products, and can also be mass-produced, especially suitable for It can be made into various surface-mounted electromagnetic components ...

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