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MANGANESE ZINC FERRITE WITH HIGH NEGATIVE-TEMPERATURE MAGNETIC PERMEABILITY AND LOW HIGH-TEMPERATURE LOSS, AND PREPARATION METHOD THEREFOR
The present invention belongs to the technical field of manganese-zinc ferrite materials. The present invention discloses a manganese-zinc ferrite with a high magnetic permeability at negative temperature and low loss at high temperature. The manganese-zinc ferrite consists of Fe2O3, MnO and ZnO, and additives consisting of CaCO3, ZrO2, Co2O3 and SnO2 are also added. The present invention also discloses a method for preparing the manganese-zinc ferrite with a high magnetic permeability at negative temperature and low loss at high temperature. According to the present invention, by reasonably adjusting a ratio of Mn to Zn to Fe and appropriately increasing the content of Co in the additives, a manganese-zinc ferrite material with both a high magnetic permeability and low loss at about -20°C and low loss at 120-140°C is obtained. The manganese-zinc ferrite material has two loss valleys at about -20°C and about 100°C in a temperature range of -30°C to 140°C, which expands the application range of the manganese-zinc ferrite material.
MANGANESE ZINC FERRITE WITH HIGH NEGATIVE-TEMPERATURE MAGNETIC PERMEABILITY AND LOW HIGH-TEMPERATURE LOSS, AND PREPARATION METHOD THEREFOR
The present invention belongs to the technical field of manganese-zinc ferrite materials. The present invention discloses a manganese-zinc ferrite with a high magnetic permeability at negative temperature and low loss at high temperature. The manganese-zinc ferrite consists of Fe2O3, MnO and ZnO, and additives consisting of CaCO3, ZrO2, Co2O3 and SnO2 are also added. The present invention also discloses a method for preparing the manganese-zinc ferrite with a high magnetic permeability at negative temperature and low loss at high temperature. According to the present invention, by reasonably adjusting a ratio of Mn to Zn to Fe and appropriately increasing the content of Co in the additives, a manganese-zinc ferrite material with both a high magnetic permeability and low loss at about -20°C and low loss at 120-140°C is obtained. The manganese-zinc ferrite material has two loss valleys at about -20°C and about 100°C in a temperature range of -30°C to 140°C, which expands the application range of the manganese-zinc ferrite material.
MANGANESE ZINC FERRITE WITH HIGH NEGATIVE-TEMPERATURE MAGNETIC PERMEABILITY AND LOW HIGH-TEMPERATURE LOSS, AND PREPARATION METHOD THEREFOR
MANGAN-ZINK-FERRIT MIT HOHER NEGATIVER TEMPERATUR-MAGNETPERMEABILITÄT UND GERINGEM HOCHTEMPERATUR-VERLUST UND HERSTELLUNGSVERFAHREN DAFÜR
FERRITE DE ZINC ET DE MANGANÈSE PRÉSENTANT UNE PERMÉABILITÉ MAGNÉTIQUE ÉLEVÉE À TEMPÉRATURE NÉGATIVE ET UNE FAIBLE PERTE À TEMPÉRATURE ÉLEVÉE ET PROCÉDÉ DE PRÉPARATION ASSOCIÉ
LYU DONGHUA (author)
2023-12-20
Patent
Electronic Resource
English
| European Patent Office | 2021
| European Patent Office | 2023
| European Patent Office | 2021
| European Patent Office | 2022
| European Patent Office | 2023