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

Manganese-zinc ferrite, preparation method and application thereof

WANG KAIXIANG / YI LIANG / ZHANG YIFEI / FAN JICHANG / WU JINHUA / GUO XINGJIA

The invention discloses manganese-zinc ferrite, a preparation method and application thereof. The method for preparing the manganese-zinc ferrite comprises the following steps: (1) mixing a manganese-zinc ferrite pre-sintered material containing Fe2O3, ZnO and MnO2 with a rare earth oxide to obtain a doped material; (2) carrying out ball-milling treatment on the doped material to obtain ball-milled powder; (3) drying the ball-milled powder, mixing the dried ball-milled powder with a binder, and granulating to obtain preformed granules; (4) carrying out compression molding treatment on the preformed granules to obtain a molded product; and (5) carrying out sintering treatment on the molded product to obtain the manganese-zinc ferrite, wherein in the step (1), the addition amount of the rareearth oxide is 0.01-0.20 wt% of the manganese-zinc ferrite pre-sintered material. The manganese-zinc ferrite prepared by the method has excellent soft magnetic performance and high cost performance,and has a wide application prospect in the field of electromagnetic heating.

本发明公开了锰锌铁氧体及其制备方法和应用。其中，制备锰锌铁氧体的方法包括：(1)将含有Fe2O3、ZnO和MnO2的锰锌铁氧体预烧料与稀土氧化物混合，以便得到掺杂物料；(2)将掺杂物料进行球磨处理，以便得到球磨粉料；(3)对球磨粉料干燥后与粘结剂混合造粒，以便得到预成型颗粒料；(4)对预成型颗粒料进行压制成型处理，以便得到成型产物；(5)对成型产物进行烧结处理，以便得到锰锌铁氧体，在步骤(1)中，稀土氧化物的加入量为锰锌铁氧体预烧料的0.01‑0.20wt％。采用该方法制备得到的锰锌铁氧体兼具优异的软磁性能和较高的性价比，在电磁加热领域具有广阔的应用前景。

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