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Nickel-copper-zinc ferrite and preparation method thereof
The invention relates to a nickel-copper-zinc ferrite and a preparation method thereof. The preparation method comprises the following steps: mixing 47-49 mol% of Fe2O3, 5-12 mol% of CuO, 18-25 mol% of ZnO and 18-25 mol% of water to obtain a slurry; drying the slurry to obtain a mixed powder; keeping the temperature at 700-900 DEG C to presinter the mixed powder, thereby obtaining the presintered powder; dividing the presintered powder into two parts, respectively carrying out ball milling on the two presintered powder parts until the particle sizes are respectively 0.6-1.2 mu m and 1.4-2.2 mu m; and mixing the two presintered powder parts subjected to ball milling, adding a sintering assistant, granulating, compacting, and keeping the temperature at 900-1000 DEG C to perform sintering. The preparation method can prepare the nickel-copper-zinc ferrite with favorable direct-current bias current impact resistance and higher initial permeability.
Nickel-copper-zinc ferrite and preparation method thereof
The invention relates to a nickel-copper-zinc ferrite and a preparation method thereof. The preparation method comprises the following steps: mixing 47-49 mol% of Fe2O3, 5-12 mol% of CuO, 18-25 mol% of ZnO and 18-25 mol% of water to obtain a slurry; drying the slurry to obtain a mixed powder; keeping the temperature at 700-900 DEG C to presinter the mixed powder, thereby obtaining the presintered powder; dividing the presintered powder into two parts, respectively carrying out ball milling on the two presintered powder parts until the particle sizes are respectively 0.6-1.2 mu m and 1.4-2.2 mu m; and mixing the two presintered powder parts subjected to ball milling, adding a sintering assistant, granulating, compacting, and keeping the temperature at 900-1000 DEG C to perform sintering. The preparation method can prepare the nickel-copper-zinc ferrite with favorable direct-current bias current impact resistance and higher initial permeability.
Nickel-copper-zinc ferrite and preparation method thereof
OUYANG CHENXIN (author) / XIAO SHUMIN (author) / ZHU JIANHUA (author) / ZHOU PENG (author) / WANG YINGFENG (author) / WANG ZHIHUI (author)
2015-07-15
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
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