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Ultrahigh-frequency high-permeability low-loss manganese-zinc soft magnetic ferrite and preparation method thereof
The invention provides ultrahigh-frequency high-permeability low-loss manganese-zinc soft magnetic ferrite and a preparation method thereof, and relates to the technical field of magnetic materials. According to the ultrahigh-frequency high-magnetic-conductivity low-loss manganese-zinc soft magnetic ferrite and the preparation method, the ultrahigh-frequency high-magnetic-conductivity low-loss manganese-zinc soft magnetic ferrite comprises main components and auxiliary components, the main components comprise 77.5 to 79.5 wt% of Fe2O3, 1.5 to 2.5 wt% of ZnO, 0.05 to 0.07 wt% of MoO3 and the balance of Mn3O4, and the auxiliary components comprise 500 to 700 ppm of Bi2O3, 200 to 300 ppm of Zn2O3, 700 to 900 ppm of TiO2, 2000 to 3000 ppm of Co2O3 and 100 to 300 ppm of In203. By optimizing the composition proportion and the processing technology of the manganese-zinc soft magnetic ferrite, the grain size after sintering can be controlled to be 1-1.4 mu m, the initial magnetic conductivity mu i is stabilized to be 1600 or above, and tests under the conditions of normal temperature, extreme temperature and ultrahigh frequency show that the magnetic conductivity of the manganese-zinc soft magnetic ferrite is not changed greatly, the power loss is low, and the comprehensive performance is very stable.
本发明提供一种超高频高磁导率低损耗锰锌软磁铁氧体及制备方法，涉及磁性材料技术领域。该超高频高磁导率低损耗锰锌软磁铁氧体及制备方法，所述超高频高磁导率低损耗锰锌软磁铁氧体的组分包含主成分和辅助成分，所述主成分包括77.5～79.5wt％Fe2O3、1.5～2.5wt％ZnO、0.05～0.07wt％MoO3，其余为Mn3O4，所述辅助成分包括：Bi2O3：500～700ppm、Zn2O3：200～300ppm、TiO2：700～900ppm、Co2O3：2000～3000ppm和In203:100～300ppm。通过优化锰锌软磁铁氧体的组成成分比例以及加工工艺，烧结后晶粒尺寸可以控制在1‑1.4μm，初始磁导率μi稳定在1600以上，在常温、极端温度以及超高频条件下的测试，其磁导率变化都不大，功率损耗也较低，综合性能十分稳定。
Ultrahigh-frequency high-permeability low-loss manganese-zinc soft magnetic ferrite and preparation method thereof
The invention provides ultrahigh-frequency high-permeability low-loss manganese-zinc soft magnetic ferrite and a preparation method thereof, and relates to the technical field of magnetic materials. According to the ultrahigh-frequency high-magnetic-conductivity low-loss manganese-zinc soft magnetic ferrite and the preparation method, the ultrahigh-frequency high-magnetic-conductivity low-loss manganese-zinc soft magnetic ferrite comprises main components and auxiliary components, the main components comprise 77.5 to 79.5 wt% of Fe2O3, 1.5 to 2.5 wt% of ZnO, 0.05 to 0.07 wt% of MoO3 and the balance of Mn3O4, and the auxiliary components comprise 500 to 700 ppm of Bi2O3, 200 to 300 ppm of Zn2O3, 700 to 900 ppm of TiO2, 2000 to 3000 ppm of Co2O3 and 100 to 300 ppm of In203. By optimizing the composition proportion and the processing technology of the manganese-zinc soft magnetic ferrite, the grain size after sintering can be controlled to be 1-1.4 mu m, the initial magnetic conductivity mu i is stabilized to be 1600 or above, and tests under the conditions of normal temperature, extreme temperature and ultrahigh frequency show that the magnetic conductivity of the manganese-zinc soft magnetic ferrite is not changed greatly, the power loss is low, and the comprehensive performance is very stable.
本发明提供一种超高频高磁导率低损耗锰锌软磁铁氧体及制备方法，涉及磁性材料技术领域。该超高频高磁导率低损耗锰锌软磁铁氧体及制备方法，所述超高频高磁导率低损耗锰锌软磁铁氧体的组分包含主成分和辅助成分，所述主成分包括77.5～79.5wt％Fe2O3、1.5～2.5wt％ZnO、0.05～0.07wt％MoO3，其余为Mn3O4，所述辅助成分包括：Bi2O3：500～700ppm、Zn2O3：200～300ppm、TiO2：700～900ppm、Co2O3：2000～3000ppm和In203:100～300ppm。通过优化锰锌软磁铁氧体的组成成分比例以及加工工艺，烧结后晶粒尺寸可以控制在1‑1.4μm，初始磁导率μi稳定在1600以上，在常温、极端温度以及超高频条件下的测试，其磁导率变化都不大，功率损耗也较低，综合性能十分稳定。
Ultrahigh-frequency high-permeability low-loss manganese-zinc soft magnetic ferrite and preparation method thereof
一种超高频高磁导率低损耗锰锌软磁铁氧体及制备方法
LUO XIANFU (author) / MA YILONG (author) / CHEN DENGMING (author) / SHAO BIN (author) / LIAO WAN-YU (author)
2023-02-28
Patent
Electronic Resource
Chinese
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Ultrahigh-Bs low-loss manganese zinc ferrite material and preparation method thereof
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