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Broadband high-permeability high-impedance manganese-zinc ferrite and preparation method thereof
The invention provides a broadband high-permeability high-impedance manganese-zinc ferrite and a preparation method thereof, relates to the technical field of magnetic materials, and is used for solving the problems of low resistivity, high dielectric constant and in-applicability of a high-frequency manganese-zinc ferrite above 1 MHZ in the prior art, and high cost of a NiZn ferrite applicable atthe high frequency. An iron-poor formula is adopted, the annular magnetic core is obtained through the steps of mixing, pre-sintering, grinding, spray granulation, compression molding and sintering,and the ferrite has high impedance and high magnetic conductivity at 1-100 MH.
本发明提供一种宽频高磁导率高阻抗锰锌铁氧体及其制备方法，涉及磁性材料技术领域，用以解决现有技术中1MHZ以上高频锰锌铁氧体电阻率低、介电常数高，无法适用的问题，而在此高频下适用NiZn铁氧体则存在成本高的问题。本发明采用贫铁类配方，通过混合、预烧、研磨、喷雾造粒、压制成型和烧结步骤，得到的环状磁芯，在1‑100MH在有较高的阻抗和较高的磁导率。
Broadband high-permeability high-impedance manganese-zinc ferrite and preparation method thereof
The invention provides a broadband high-permeability high-impedance manganese-zinc ferrite and a preparation method thereof, relates to the technical field of magnetic materials, and is used for solving the problems of low resistivity, high dielectric constant and in-applicability of a high-frequency manganese-zinc ferrite above 1 MHZ in the prior art, and high cost of a NiZn ferrite applicable atthe high frequency. An iron-poor formula is adopted, the annular magnetic core is obtained through the steps of mixing, pre-sintering, grinding, spray granulation, compression molding and sintering,and the ferrite has high impedance and high magnetic conductivity at 1-100 MH.
本发明提供一种宽频高磁导率高阻抗锰锌铁氧体及其制备方法，涉及磁性材料技术领域，用以解决现有技术中1MHZ以上高频锰锌铁氧体电阻率低、介电常数高，无法适用的问题，而在此高频下适用NiZn铁氧体则存在成本高的问题。本发明采用贫铁类配方，通过混合、预烧、研磨、喷雾造粒、压制成型和烧结步骤，得到的环状磁芯，在1‑100MH在有较高的阻抗和较高的磁导率。
Broadband high-permeability high-impedance manganese-zinc ferrite and preparation method thereof
宽频高磁导率高阻抗锰锌铁氧体及其制备方法
SUN KE (author) / XU SHILIANG (author) / SONG XINGLIAN (author) / ZHAO QIMIN (author) / WEI XIULU (author)
2020-12-29
Patent
Electronic Resource
Chinese
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Broadband high-impedance manganese-zinc ferrite material and preparation method thereof
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