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High-Bs nickel-zinc ferrite and preparation method thereof
The invention provides high-Bs nickel-zinc ferrite. The high-Bs nickel-zinc ferrite comprises a main component and an auxiliary component, and the main component is composed of the following raw materials in mole percentage: 49.5 to 50.0 mol% of Fe2O3, 23.1 to 26.5 mol% of NiO, 22.8 to 26.8 mol% of ZnO, and 0.1 to 0.2 mol% of CuO, the auxiliary components comprise B2O3, P2O5, Al2O3 and SiO2, basedon the total mass of the main components, the content of the auxiliary components is as follows: 0.01 to 0.05 weight percent of B2O3, 0.01 to 0.05 weight percent of P2O5, 0.01 to 0.03 weight percentof Al2O3 and 0.01 to 0.02 weight percent of SiO2. According to the ferrite material, the contents and proportions of the main components and the auxiliary components are adjusted, and the positions ofatomic structures are adjusted, so that a relatively high atomic magnetic moment is obtained, and furthermore, relatively high Bs is obtained, besides, grains of the ferrite are tightly fused, a compact magnet is obtained, high sintering density is further obtained, and the requirement of the power inductor for miniaturization and large current of the ferrite material is met. The invention also provides a preparation method of the nickel-zinc ferrite.
本发明提供了一种高Bs的镍锌铁氧体，包括主成分和副成分，所述主成分按摩尔百分比，由以下原料组成：Fe2O3 49.5～50.0mol％，NiO 23.1～26.5mol％，ZnO 22.8～26.8mol％，CuO 0.1～0.2mol％；所述副成分包括B2O3、P2O5、Al2O3和SiO2；以所述主成分的总质量为基准，所述副成分的含量为：B2O3 0.01～0.05wt％，P2O5 0.01～0.05wt％，Al2O3 0.01～0.03wt％，SiO20.01～0.02wt％。该铁氧体材料，通过调整主成分和副成分的含量和配比，调整原子结构的站位，获得较高的原子磁矩，进而获得较高的Bs；另外，铁氧体的晶粒之间融合紧密，获得致密的磁体，进而获得高烧结密度，满足功率电感对铁氧体材料的小型化大电流的要求。本发明还提供了镍锌铁氧体的制备方法。
High-Bs nickel-zinc ferrite and preparation method thereof
The invention provides high-Bs nickel-zinc ferrite. The high-Bs nickel-zinc ferrite comprises a main component and an auxiliary component, and the main component is composed of the following raw materials in mole percentage: 49.5 to 50.0 mol% of Fe2O3, 23.1 to 26.5 mol% of NiO, 22.8 to 26.8 mol% of ZnO, and 0.1 to 0.2 mol% of CuO, the auxiliary components comprise B2O3, P2O5, Al2O3 and SiO2, basedon the total mass of the main components, the content of the auxiliary components is as follows: 0.01 to 0.05 weight percent of B2O3, 0.01 to 0.05 weight percent of P2O5, 0.01 to 0.03 weight percentof Al2O3 and 0.01 to 0.02 weight percent of SiO2. According to the ferrite material, the contents and proportions of the main components and the auxiliary components are adjusted, and the positions ofatomic structures are adjusted, so that a relatively high atomic magnetic moment is obtained, and furthermore, relatively high Bs is obtained, besides, grains of the ferrite are tightly fused, a compact magnet is obtained, high sintering density is further obtained, and the requirement of the power inductor for miniaturization and large current of the ferrite material is met. The invention also provides a preparation method of the nickel-zinc ferrite.
本发明提供了一种高Bs的镍锌铁氧体，包括主成分和副成分，所述主成分按摩尔百分比，由以下原料组成：Fe2O3 49.5～50.0mol％，NiO 23.1～26.5mol％，ZnO 22.8～26.8mol％，CuO 0.1～0.2mol％；所述副成分包括B2O3、P2O5、Al2O3和SiO2；以所述主成分的总质量为基准，所述副成分的含量为：B2O3 0.01～0.05wt％，P2O5 0.01～0.05wt％，Al2O3 0.01～0.03wt％，SiO20.01～0.02wt％。该铁氧体材料，通过调整主成分和副成分的含量和配比，调整原子结构的站位，获得较高的原子磁矩，进而获得较高的Bs；另外，铁氧体的晶粒之间融合紧密，获得致密的磁体，进而获得高烧结密度，满足功率电感对铁氧体材料的小型化大电流的要求。本发明还提供了镍锌铁氧体的制备方法。
High-Bs nickel-zinc ferrite and preparation method thereof
一种高Bs的镍锌铁氧体及其制备方法
YANG MINGXIONG (author) / JIANG ZHONGXIANG (author)
2020-10-30
Patent
Electronic Resource
Chinese
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