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Nickel-zinc ferrite material and preparation method thereof
The invention relates to the technical field of soft magnetic ferrite. The invention aims to solve the problems of low magnetic conductivity, low high-frequency impedance and low Curie temperature ofan existing nickel-zinc ferrite material. The invention provides a nickel-zinc ferrite material and a preparation method thereof. The nickel-zinc ferrite material is composed of a main component and an additive, wherein the main component is composed of the following raw materials in mole percentage: 48-49.6 mol% of Fe2O3, 10-14 mol% of NiO, 30-35 mol% of ZnO and the balance being CuO; based on the total mass of the main component, the additive is composed of the following raw materials in percentage by weight: 0.005 to 0.012 wt% of SiO2, 0.08 to 0.2 wt% of CaCO3, 0.05 to 0.35 wt% of V2O5, and0.1 to 0.4 wt% of Bi2O3. All the components of the NiZn ferrite material have a synergistic effect, the NiZn ferrite material can be sintered at the temperature of 1100 DEG C or below, the resistivity of the obtained material is 10<9> Ohm*cm or above, and the insulation effect can be achieved; the initial permeability of the obtained material is 2000, and the material has good high-frequency impedance characteristics and is especially suitable for manufacturing EMI-resistant and common-mode design products. The preparation method has the advantages of easy control of process conditions, low production cost, no special requirements on equipment, and realization of batch production.
本发明涉及软磁铁氧体技术领域，为解决现有镍锌铁氧体材料磁导率低、高频阻抗低及居里温度低的问题，提供了一种镍锌铁氧体材料及其制备方法，所述镍锌铁氧体材料由主成份和添加剂组成，所述主成分由以下摩尔百分比的原料组成：FeO48～49.6mol％，NiO 10～14mol％，ZnO 30～35mol％，余量为CuO；以主成分总质量为基准，所述添加剂由以下含量的原料组成：SiO0.005～0.012wt％，CaCO0.08～0.2wt％，VO0.05～0.35wt％，BiO0.1～0.4wt％。本发明的NiZn铁氧体材料各组分协同作用，可在1100℃以下烧结，获得的材料电阻率在10Ω·cm以上，可起绝缘作用；获得的材料的起始磁导率有2000，具有良好的高频阻抗特性，尤其适用于制作抗EMI和共模设计产品；制备方法工艺条件易于控制，生产成本低，对设备无特殊要求，能够实现批量生产。
Nickel-zinc ferrite material and preparation method thereof
The invention relates to the technical field of soft magnetic ferrite. The invention aims to solve the problems of low magnetic conductivity, low high-frequency impedance and low Curie temperature ofan existing nickel-zinc ferrite material. The invention provides a nickel-zinc ferrite material and a preparation method thereof. The nickel-zinc ferrite material is composed of a main component and an additive, wherein the main component is composed of the following raw materials in mole percentage: 48-49.6 mol% of Fe2O3, 10-14 mol% of NiO, 30-35 mol% of ZnO and the balance being CuO; based on the total mass of the main component, the additive is composed of the following raw materials in percentage by weight: 0.005 to 0.012 wt% of SiO2, 0.08 to 0.2 wt% of CaCO3, 0.05 to 0.35 wt% of V2O5, and0.1 to 0.4 wt% of Bi2O3. All the components of the NiZn ferrite material have a synergistic effect, the NiZn ferrite material can be sintered at the temperature of 1100 DEG C or below, the resistivity of the obtained material is 10<9> Ohm*cm or above, and the insulation effect can be achieved; the initial permeability of the obtained material is 2000, and the material has good high-frequency impedance characteristics and is especially suitable for manufacturing EMI-resistant and common-mode design products. The preparation method has the advantages of easy control of process conditions, low production cost, no special requirements on equipment, and realization of batch production.
本发明涉及软磁铁氧体技术领域，为解决现有镍锌铁氧体材料磁导率低、高频阻抗低及居里温度低的问题，提供了一种镍锌铁氧体材料及其制备方法，所述镍锌铁氧体材料由主成份和添加剂组成，所述主成分由以下摩尔百分比的原料组成：FeO48～49.6mol％，NiO 10～14mol％，ZnO 30～35mol％，余量为CuO；以主成分总质量为基准，所述添加剂由以下含量的原料组成：SiO0.005～0.012wt％，CaCO0.08～0.2wt％，VO0.05～0.35wt％，BiO0.1～0.4wt％。本发明的NiZn铁氧体材料各组分协同作用，可在1100℃以下烧结，获得的材料电阻率在10Ω·cm以上，可起绝缘作用；获得的材料的起始磁导率有2000，具有良好的高频阻抗特性，尤其适用于制作抗EMI和共模设计产品；制备方法工艺条件易于控制，生产成本低，对设备无特殊要求，能够实现批量生产。
Nickel-zinc ferrite material and preparation method thereof
一种镍锌铁氧体材料及其制备方法
JIANG YUMEI (author) / ZHU XIAOLI (author) / CHEN JUNLIN (author)
2020-05-29
Patent
Electronic Resource
Chinese
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