A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Manganese zinc ferrite with wide operating temperature range and low loss power and preparation method of manganese zinc ferrite
The invention relates to manganese zinc ferrite with a wide operating temperature range and low loss power and a preparation method of the manganese zinc ferrite. The materials of the manganese zinc ferrite comprise the following main components: 52.5mol%-53.5mol% of Fe2O3, 8.0mol%-10.0mol% of ZnO, and the balance of Mn3O4; the total content of accessory components of CaCO3, Nb2O5, Bi2O3 and Co2O3 is 0.05wt%-0.75wt% of the total quantity of the main components. The manganese zinc ferrite adopts a dry method to prepare powder, the dry method successively comprises the steps of mixing, presintering, smashing, pelleting, pressing and sintering, wherein the sintering temperature is 1260 DEG C-1280 DEG C. According to the manganese zinc ferrite disclosed by the invention, the initial permeability mui is 2000-4000(10kHz, 0.25mT, 22 DEG C-28 DEG C), the power loss Pcv is smaller than 300kW/m3(300kHz, 100mT, (0-140 DEG C)+/-3 DEG C) and is smaller than 300kW/m3(300kHz, 100mT, +/-3 DEG C), the relative loss factor tan delta/mui is smaller than 5*10<-6>(300kHz), and the design requirements for an energy-saving environment friendly power source to a low-loss high-frequency transformer can be well satisfied.
Manganese zinc ferrite with wide operating temperature range and low loss power and preparation method of manganese zinc ferrite
The invention relates to manganese zinc ferrite with a wide operating temperature range and low loss power and a preparation method of the manganese zinc ferrite. The materials of the manganese zinc ferrite comprise the following main components: 52.5mol%-53.5mol% of Fe2O3, 8.0mol%-10.0mol% of ZnO, and the balance of Mn3O4; the total content of accessory components of CaCO3, Nb2O5, Bi2O3 and Co2O3 is 0.05wt%-0.75wt% of the total quantity of the main components. The manganese zinc ferrite adopts a dry method to prepare powder, the dry method successively comprises the steps of mixing, presintering, smashing, pelleting, pressing and sintering, wherein the sintering temperature is 1260 DEG C-1280 DEG C. According to the manganese zinc ferrite disclosed by the invention, the initial permeability mui is 2000-4000(10kHz, 0.25mT, 22 DEG C-28 DEG C), the power loss Pcv is smaller than 300kW/m3(300kHz, 100mT, (0-140 DEG C)+/-3 DEG C) and is smaller than 300kW/m3(300kHz, 100mT, +/-3 DEG C), the relative loss factor tan delta/mui is smaller than 5*10<-6>(300kHz), and the design requirements for an energy-saving environment friendly power source to a low-loss high-frequency transformer can be well satisfied.
Manganese zinc ferrite with wide operating temperature range and low loss power and preparation method of manganese zinc ferrite
XING BINGBING (author) / ZHANG QIANGYUAN (author) / PAN XIAODONG (author)
2015-04-29
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
| European Patent Office | 2021
| European Patent Office | 2024
| European Patent Office | 2015
Wide-temperature ultralow-loss manganese zinc ferrite material and preparation method thereof
| European Patent Office | 2021