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High-frequency high-impedance iron-poor manganese-zinc ferrite and preparation method thereof
The invention relates to the technical field of soft magnetic ferrites. The high-frequency high-impedance iron-poor manganese-zinc ferrite comprises main components and additives, the main componentscomprise the following raw materials in percentage by mole: 47.8%-49.8% of Fe2O3, 31%-36% of MnO, 15%-18.5% of ZnO and 0.7%-2% of Co2O3, the additives comprise 10 to 100 ppm of SiO2, 200 to 1000 ppm of CaCO3, 100 to 300 ppm of Bi2O3, 100 to 300 ppm of ZrO2 and 100 to 600 ppm of TiO2. According to the invention, the Co2O3 is added into the main components, the ratio of the main components is reasonably adjusted, and meanwhile, the additives are added for modification, so that the prepared iron-poor manganese-zinc ferrite also has high magnetic conductivity, high saturation flux density and highimpedance at high frequency.
本发明涉及软磁铁氧体技术领域，公开了一种高频高阻抗的贫铁锰锌铁氧体及其制备方法，原料包括主成分和添加剂，主成分以摩尔百分数计包括47.8~49.8% FeO，31~36% MnO，15~18.5% ZnO及0.7~2% CoO；添加剂包括10~100ppm SiO，200~1000ppm CaCO，100~300ppm BiO，100~300ppm ZrO及100~600ppm TiO。本发明在主成分中添加CoO，并合理调整各主成分的配比，同时加入添加剂进行改性，制备出的贫铁锰锌铁氧体在高频下也具有高磁导率、高饱和磁感应强度和高阻抗。
High-frequency high-impedance iron-poor manganese-zinc ferrite and preparation method thereof
The invention relates to the technical field of soft magnetic ferrites. The high-frequency high-impedance iron-poor manganese-zinc ferrite comprises main components and additives, the main componentscomprise the following raw materials in percentage by mole: 47.8%-49.8% of Fe2O3, 31%-36% of MnO, 15%-18.5% of ZnO and 0.7%-2% of Co2O3, the additives comprise 10 to 100 ppm of SiO2, 200 to 1000 ppm of CaCO3, 100 to 300 ppm of Bi2O3, 100 to 300 ppm of ZrO2 and 100 to 600 ppm of TiO2. According to the invention, the Co2O3 is added into the main components, the ratio of the main components is reasonably adjusted, and meanwhile, the additives are added for modification, so that the prepared iron-poor manganese-zinc ferrite also has high magnetic conductivity, high saturation flux density and highimpedance at high frequency.
本发明涉及软磁铁氧体技术领域，公开了一种高频高阻抗的贫铁锰锌铁氧体及其制备方法，原料包括主成分和添加剂，主成分以摩尔百分数计包括47.8~49.8% FeO，31~36% MnO，15~18.5% ZnO及0.7~2% CoO；添加剂包括10~100ppm SiO，200~1000ppm CaCO，100~300ppm BiO，100~300ppm ZrO及100~600ppm TiO。本发明在主成分中添加CoO，并合理调整各主成分的配比，同时加入添加剂进行改性，制备出的贫铁锰锌铁氧体在高频下也具有高磁导率、高饱和磁感应强度和高阻抗。
High-frequency high-impedance iron-poor manganese-zinc ferrite and preparation method thereof
一种高频高阻抗的贫铁锰锌铁氧体及其制备方法
XIAO SHIYONG (author) / ZHANG ZHENG (author) / WANG CHAOMING (author) / ZHAO XU (author) / DU YANGZHONG (author)
2020-06-05
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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