A kind of high frequency manganese zinc soft magnetic ferrite material and its preparation method and application

Abstract

The invention discloses a high-frequency manganese-zinc soft ferrite material, a preparation method and application thereof. The high-frequency material includes main components and subcomponents, wherein the main components include Fe 2 o 3、 MnO, ZnO, NiO, the subcomponents are: Ca 2 CO 3 , V 2 o 5 , Nb 2 o 5 、K 2 CO 3 、Co 2 o 3 and SnO 2 . The high-frequency manganese-zinc soft magnetic ferrite material of the present invention becomes a quaternary formula system by introducing nickelous oxide into the main formula, that is, a nickel-zinc-ferrite system is incorporated into the manganese-zinc-ferrite system, so that the product can be better controlled The grain size and the resistivity of the product reduce the high-frequency loss of the product, so that the product has a higher saturation magnetic flux density and a higher Curie temperature, especially suitable for a high-frequency environment of 500KHz~1MHz. The preparation method of the invention is beneficial to increase the saturation magnetic flux density and reduce the functional loss by controlling the pre-sintering temperature, the sintering temperature and the particle size of the powder material.

Description

technical field [0001] The invention relates to the technical field of electronic materials, and more particularly, to a high-frequency manganese-zinc soft ferrite material and a preparation method and application thereof. Background technique [0002] Electronic materials are the material basis for the development of modern electronics industry and science and technology, mainly a class of materials used in electronic technology and microelectronics technology, including dielectric materials, semiconductor materials, piezoelectric and ferroelectric materials, conductive metals and their alloys. Materials, magnetic materials, optoelectronic materials and other related materials, as one of electronic materials, ferrite core materials are widely used in communication equipment and automotive electronics. The application of soft magnetic materials in industry began at the end of the nineteenth century and has an extremely wide range of applications. Soft magnetic materials are...

AI Technical Summary

Problems solved by technology

Although many ferrite core materials in the current technology have high initial magnetic permeability, the wide temperature characteristics of magnetic permeability are very general, and it is difficult to maintain high magnetic permeability under various ambient temperatures; Although some products can achieve better magnetic permeability and wide temperature characteristics, the preparation cost is too high, the preparation process is cumbersome, and it is not easy to operate

Prior art CN105084882A discloses that related nickel-ferrite system is used to improve the magnetic permeability and functional loss of soft ferrite materials, but it does not involve the improvement of power consumption level for high-frequency materials, and the improvement effect is limited

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