Manganese zinc ferrite and preparation method thereof: Fid-Bau Portal

Manganese zinc ferrite and preparation method thereof

LIAO ZHONGMING / QIU ZHAOGUO

The invention relates to manganese zinc ferrite and a preparation method thereof, and the method comprises the following steps: mixing manganese zinc ferrite powder with a polyvinyl alcohol solution to obtain a mixture, and grinding the mixture; carrying out compression molding treatment on the ground mixture to obtain a compression molding product; carrying out sintering treatment on the compression molding product to obtain manganese zinc ferrite; wherein the sintering treatment comprises a heating treatment stage, the heating treatment stage comprises a plurality of heating stages, and at least two of the plurality of heating stages have different heating rates. The manganese-zinc ferrite prepared by the preparation method disclosed by the invention can keep low loss under high frequency, and also can have high saturation magnetic flux density and low residual magnetism, namely the manganese-zinc ferrite with large magnetic induction intensity variation is prepared.

一种锰锌铁氧体及其制备方法，所述方法包括：将锰锌铁氧体粉末与聚乙烯醇溶液进行混合获得混合物，并对所述混合物进行研磨；对研磨后的所述混合物进行压制成型处理，以得到压制成型产物；对所述压制成型产物进行烧结处理，以得到锰锌铁氧体；其中，所述烧结处理包括升温处理阶段，所述升温处理阶段包括：多个升温阶段，所述多个升温阶段中至少两个所述升温阶段具有不同的升温速率。本申请制备得到的锰锌铁氧体在高频下保持低损耗的同时，也能够具有高饱和磁通密度和低剩磁，即制备得到了具有大的磁感应强度变化量的锰锌铁氧体。

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