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The invention discloses a preparation method for improving manganese zinc power ferrite material resistivity, the preparation method is as follows: main material and auxiliary material preparation, first ball milling, presintering, second ball milling, granulating, forming and the like, before the first ball milling, TiO2 and SnO2 are doped, or SnO2 is doped; before the second ball milling, CaCO3, SiO2, Ta2O5 ,Nb2O5 and / or V2O5 are doped; the effect of doping of SnO2 / TiO2 before the first ball milling is better than doping of SnO2 / TiO2 before the second ball milling, and the ferrite material property improving effects of SnO2 and TiO2 can be more effectively played, and by adding of trace impurities and changing of the order of doping, the material resistivity can be improved obviously to achieve the purpose of reducing the loss.
The invention discloses a preparation method for improving manganese zinc power ferrite material resistivity, the preparation method is as follows: main material and auxiliary material preparation, first ball milling, presintering, second ball milling, granulating, forming and the like, before the first ball milling, TiO2 and SnO2 are doped, or SnO2 is doped; before the second ball milling, CaCO3, SiO2, Ta2O5 ,Nb2O5 and / or V2O5 are doped; the effect of doping of SnO2 / TiO2 before the first ball milling is better than doping of SnO2 / TiO2 before the second ball milling, and the ferrite material property improving effects of SnO2 and TiO2 can be more effectively played, and by adding of trace impurities and changing of the order of doping, the material resistivity can be improved obviously to achieve the purpose of reducing the loss.
Manganese zinc ferrite material for increasing electrical resistivity
| European Patent Office | 2015
| European Patent Office | 2023
Manganese-zinc power ferrite material and preparation method thereof
| European Patent Office | 2021
Manganese zinc ferrite material and preparation method thereof
| European Patent Office | 2015