1results about How to "Improve densification efficiency" patented technology

The application relates to the field of magnetic core materials, and particularly discloses a low-temperature sintering NiZn magnetic core material and a preparation method thereof. The low-temperature sintering NiZn magnetic core material comprises the following raw materials in percentage by mass: NiO 10-20%, ZnO 20-35%, Fe2O3 45-55%, and a sintering aid 2-5%, wherein the sintering aid comprises at least two of Bi2O3, V2O5 and MnO. By optimizing the component proportion of each raw material and the sintering aid, the application realizes low-temperature sintering below 950 DEG C, can reduce energy consumption by more than 30% compared with the traditional process which needs to be sintered above 1200 DEG C, and solves the problems of easy decline of magnetic performance, insufficient sintering density and increased loss caused by low-temperature sintering, so that the prepared magnetic core material has low loss, a density greater than or equal to 94%, and a magnetic permeability greater than or equal to 85 (1MHz), meets the demand of high-frequency electronic devices, and has high compatibility with low-temperature packaging materials.