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Preparation method of high-frequency, high-Bs and low-loss power ferrite material
The invention relates to a preparation method of a high-frequency, high-Bs and low-loss power ferrite material. The ferrite material comprises the following raw materials in percentage by mole: 56-58% of Fe2O3, 39-42% of MnO and 3-5% of ZnO; the auxiliary agent comprises Co2O3 and TiO2, the use amount of the Co2O3 accounts for 0.4-0.6% of the total weight of the main components, and the use amount of the TiO2 accounts for 0.2-0.35% of the total weight of the main components. According to the preparation method disclosed by the invention, the proportion of hysteresis loss in total loss is reduced, and the loss performance of the ferrite under a high magnetic field intensity value is improved; co2O3 and TiO2 are added as auxiliary agents, so that the magnetic conductivity curve of the material is smoothed, the high-temperature magnetic conductivity is reduced, and the situation that due to the fact that the magnetic conductivity is too high at the high temperature, the magnetic domain resonance frequency moves to the low frequency, and consequently residual loss is sharply increased is avoided.
本发明涉及一种高频、高Bs、低损耗功率铁氧体材料的制备方法。该铁氧体材料的原料包括主成分和辅助剂，所述主成分按摩尔百分数计包括Fe2O356～58％，MnO 39～42％，ZnO 3～5％；所述辅助剂包括Co2O3和TiO2，其中，Co2O3的用量为主成分总重量的0.4～0.6％，TiO2的用量为主成分总重量的0.2～0.35％。本发明的制备方法降低了磁滞损耗在总损耗中的比例，改善了高磁场强度值下铁氧体的损耗性能；添加Co2O3及TiO2作为辅助剂，平缓了材料的磁导率曲线，使高温磁导率降低，避免在高温下磁导率过高，导致磁畴共振频率往低频移动导致剩余损耗急剧增加。
Preparation method of high-frequency, high-Bs and low-loss power ferrite material
The invention relates to a preparation method of a high-frequency, high-Bs and low-loss power ferrite material. The ferrite material comprises the following raw materials in percentage by mole: 56-58% of Fe2O3, 39-42% of MnO and 3-5% of ZnO; the auxiliary agent comprises Co2O3 and TiO2, the use amount of the Co2O3 accounts for 0.4-0.6% of the total weight of the main components, and the use amount of the TiO2 accounts for 0.2-0.35% of the total weight of the main components. According to the preparation method disclosed by the invention, the proportion of hysteresis loss in total loss is reduced, and the loss performance of the ferrite under a high magnetic field intensity value is improved; co2O3 and TiO2 are added as auxiliary agents, so that the magnetic conductivity curve of the material is smoothed, the high-temperature magnetic conductivity is reduced, and the situation that due to the fact that the magnetic conductivity is too high at the high temperature, the magnetic domain resonance frequency moves to the low frequency, and consequently residual loss is sharply increased is avoided.
本发明涉及一种高频、高Bs、低损耗功率铁氧体材料的制备方法。该铁氧体材料的原料包括主成分和辅助剂，所述主成分按摩尔百分数计包括Fe2O356～58％，MnO 39～42％，ZnO 3～5％；所述辅助剂包括Co2O3和TiO2，其中，Co2O3的用量为主成分总重量的0.4～0.6％，TiO2的用量为主成分总重量的0.2～0.35％。本发明的制备方法降低了磁滞损耗在总损耗中的比例，改善了高磁场强度值下铁氧体的损耗性能；添加Co2O3及TiO2作为辅助剂，平缓了材料的磁导率曲线，使高温磁导率降低，避免在高温下磁导率过高，导致磁畴共振频率往低频移动导致剩余损耗急剧增加。
Preparation method of high-frequency, high-Bs and low-loss power ferrite material
一种高频、高Bs、低损耗功率铁氧体材料的制备方法
GUO WENQIANG (author) / LYU HAIBO (author) / GAO XIYING (author) / LIU NA (author)
2023-04-04
Patent
Electronic Resource
Chinese
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