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High-frequency low-magnetic-hysteresis manganese-zinc soft magnetic ferrite and preparation method thereof
The invention discloses high-frequency low-magnetic-hysteresis manganese-zinc soft magnetic ferrite. The high-frequency low-magnetic-hysteresis manganese-zinc soft magnetic ferrite comprises the following main components of 62-70 mol% of FeO, 15-30 mol% of MnO, 8-13 mol% of ZnO and 4-6 mol% of NiO and further comprises the following auxiliary components of 10-200 ppm of CaCO3, 400-600 ppm of B2O3, 10-300 ppm of LaO, 20-120 ppm of V2O5, 50-180 ppm of TiO2 and 50-220 ppm of Co2O3 relative to the total weight of the main components. A preparation method includes the following operating steps of batch mixing, pre-sintering, sanding, pulping, pelleting, secondary sintering, cooling and cleaning, and then finished products are obtained. The high-frequency low-magnetic-hysteresis manganese-zinc soft magnetic ferrite has the advantages of being good in temperature stability, low in magnetic hysteresis loss and high in initial permeability, can reduce waveform distortion in the signal transmission process and transmission errors, increase the transmission distance and solve the problem of high-frequency transmission delay in application, and meets the application requirements of the current high-speed network broadband access technology.
High-frequency low-magnetic-hysteresis manganese-zinc soft magnetic ferrite and preparation method thereof
The invention discloses high-frequency low-magnetic-hysteresis manganese-zinc soft magnetic ferrite. The high-frequency low-magnetic-hysteresis manganese-zinc soft magnetic ferrite comprises the following main components of 62-70 mol% of FeO, 15-30 mol% of MnO, 8-13 mol% of ZnO and 4-6 mol% of NiO and further comprises the following auxiliary components of 10-200 ppm of CaCO3, 400-600 ppm of B2O3, 10-300 ppm of LaO, 20-120 ppm of V2O5, 50-180 ppm of TiO2 and 50-220 ppm of Co2O3 relative to the total weight of the main components. A preparation method includes the following operating steps of batch mixing, pre-sintering, sanding, pulping, pelleting, secondary sintering, cooling and cleaning, and then finished products are obtained. The high-frequency low-magnetic-hysteresis manganese-zinc soft magnetic ferrite has the advantages of being good in temperature stability, low in magnetic hysteresis loss and high in initial permeability, can reduce waveform distortion in the signal transmission process and transmission errors, increase the transmission distance and solve the problem of high-frequency transmission delay in application, and meets the application requirements of the current high-speed network broadband access technology.
High-frequency low-magnetic-hysteresis manganese-zinc soft magnetic ferrite and preparation method thereof
YAN CHONG (author) / DING GUODONG (author) / SHEN QIYIN (author)
2015-06-10
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
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