Ni-Zn soft magnetic ferrite material and preparation method thereof

Abstract

The invention discloses a nickel-zinc soft magnetic ferrite material and a preparation method thereof. The material comprises the following compositions in mol percentage: 45 to 50 mol percent of ferric oxide Fe2O3, 20 to 26 mol percent of zinc oxide ZnO, 12 to 17 mol percent of nickel protoxide NiO, 5 to 10 mol percent of copper oxide CuO, and 3 to 10 mol percent of magnesium oxide MgO. The preparation method comprises the following steps: treating raw materials, proportioning, primary ball milling, drying, powdering or screening, preburning, secondary proportioning, secondary ball milling, secondary drying and secondary powdering or screening; the preburning condition is to carry out pre-synthesis in an air furnace at a temperature of between 900 and 980 DEG C, and the sintering temperature is between 1,050 and 1,100 DEG C. The nickel-zinc soft magnetic ferrite material has the characteristics of property of high Q, high frequency, high TC, high Bm and low cost.

Description

technical field [0001] The invention relates to a soft ferrite material and a preparation method thereof, in particular to a nickel-zinc soft ferrite material and a preparation method thereof. Background technique [0002] With the technological upgrading and development of high-tech products such as laptop computers, digital products, LCD TVs, and micro-communications, the demand for nickel-zinc soft ferrite cores is increasing, and tends to be miniaturized, with high reliability and low The direction of production cost development requires stable magnetic permeability, TC, Bm, anti-demolition strength, and high Q, and the nickel-zinc soft ferrite core mainly uses nickelous oxide precious metal as the main raw material, and the addition amount is 10% ~25%. At the same time, as a rare and precious metal, nickel plays an important role in military industry, national defense, and aerospace. It is a strategic resource. Many countries have adopted restrictions on quantitative mi...

AI Technical Summary

Problems solved by technology

[0002] With the technological upgrading and development of high-tech products such as laptop computers, digital products, LCD TVs, and micro-communications, the demand for nickel-zinc soft ferrite cores is increasing, and tends to be miniaturized, with high reliability and low The direction of production cost development requires stable magnetic permeability, TC, Bm, anti-demolition strength, and high Q, and the nickel-zinc soft ferrite core mainly uses nickelous oxide precious metal as the main raw material, and the addition amount is 10% ~25%. At the same time, as a rare and precious metal, nickel plays an important role in military industry, national defense, and aerospace. It is a strategic resource. Many countries have adopted restrictions on quantitative mining. With the rapid development of the magnetic material industry, nickel The demand is also growing at a high speed, which has caused a t