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Low temperature sintered nickel-copper-zinc soft-magnetic ferrite material and preparation method thereof
The invention discloses a low temperature sintered nickel-copper-zinc soft-magnetic ferrite material and a preparation method thereof. The low temperature sintered nickel-copper-zinc soft-magnetic ferrite material comprises main components and auxiliary components. The main components comprise iron oxide, nickel oxide, zinc oxide and copper oxide. The auxiliary components comprise V2O5 and Co2O3. The preparation method comprises the following steps of weighing raw materials by a main component formula, adding the weighed raw materials into a planetary ball mill, carrying out mixing, carrying out spray granulation, pre-sintering the spray particles in an air kiln, weighing a proper amount of the pre-sintered material, adding a proper amount of the auxiliary components of V2O5 and Co2O3 into the pre-sintered material, carrying out two-step sanding, carrying out spray granulation, press-molding the ferrite powder subjected to spray drying, putting the molded ferrite powder into the air kiln and carrying out sintering to obtain the low temperature sintered nickel-copper-zinc soft-magnetic ferrite material. The preparation method maximally improves material electromagnetic properties, reduces a sintering temperature and produces a magnet with high magnetic permeability and low loss at a sintering temperature of about 900-1000 DEG C.
Low temperature sintered nickel-copper-zinc soft-magnetic ferrite material and preparation method thereof
The invention discloses a low temperature sintered nickel-copper-zinc soft-magnetic ferrite material and a preparation method thereof. The low temperature sintered nickel-copper-zinc soft-magnetic ferrite material comprises main components and auxiliary components. The main components comprise iron oxide, nickel oxide, zinc oxide and copper oxide. The auxiliary components comprise V2O5 and Co2O3. The preparation method comprises the following steps of weighing raw materials by a main component formula, adding the weighed raw materials into a planetary ball mill, carrying out mixing, carrying out spray granulation, pre-sintering the spray particles in an air kiln, weighing a proper amount of the pre-sintered material, adding a proper amount of the auxiliary components of V2O5 and Co2O3 into the pre-sintered material, carrying out two-step sanding, carrying out spray granulation, press-molding the ferrite powder subjected to spray drying, putting the molded ferrite powder into the air kiln and carrying out sintering to obtain the low temperature sintered nickel-copper-zinc soft-magnetic ferrite material. The preparation method maximally improves material electromagnetic properties, reduces a sintering temperature and produces a magnet with high magnetic permeability and low loss at a sintering temperature of about 900-1000 DEG C.
Low temperature sintered nickel-copper-zinc soft-magnetic ferrite material and preparation method thereof
HAO BIN (Autor:in) / YE YITING (Autor:in) / YU YANGDONG (Autor:in) / XU CHEN (Autor:in)
08.07.2015
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
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