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Nano ferrite material, and preparation method thereof
The invention discloses a nano ferrite material, and a preparation method thereof. The preparation method comprises following steps: 1) Fe(NO3)3, Zn(NO3)2, Ni(NO3)2, and Cu(NO3)2 are taken as initial raw materials, the weight of the materials is calculated based on a molecular formula Ni(1-a-b)ZnaCubFecO4, and a mixed metallic nitrate solution is prepared, wherein 0.4<=a<=0.45, 0.15<=b<=0.2, and 1.9<=c<=1.96; 2), a NaOH solution with a molar concentration ranging from 1 to 10mol/L is added into the mixed metallic nitrate solution so as to obtain a precipitate; 3), hydro-thermal synthesis is carried out; 4), the precipitate is washed and dried; 5) Bi2O3 with a weight ratio ranging from 0.05 to 0.5wt% and MoO3 with a weight ratio ranging from 0.05 to 0.2wt% are added, an obtained mixture is subjected to ball milling and drying, and a binder is added for pelleting; and 6) compacting and sintering are carried out. The nano ferrite material is high in magnetic conductivity and saturation magnetic induction intensity; and a crystal grain structure is uniform and fine.
Nano ferrite material, and preparation method thereof
The invention discloses a nano ferrite material, and a preparation method thereof. The preparation method comprises following steps: 1) Fe(NO3)3, Zn(NO3)2, Ni(NO3)2, and Cu(NO3)2 are taken as initial raw materials, the weight of the materials is calculated based on a molecular formula Ni(1-a-b)ZnaCubFecO4, and a mixed metallic nitrate solution is prepared, wherein 0.4<=a<=0.45, 0.15<=b<=0.2, and 1.9<=c<=1.96; 2), a NaOH solution with a molar concentration ranging from 1 to 10mol/L is added into the mixed metallic nitrate solution so as to obtain a precipitate; 3), hydro-thermal synthesis is carried out; 4), the precipitate is washed and dried; 5) Bi2O3 with a weight ratio ranging from 0.05 to 0.5wt% and MoO3 with a weight ratio ranging from 0.05 to 0.2wt% are added, an obtained mixture is subjected to ball milling and drying, and a binder is added for pelleting; and 6) compacting and sintering are carried out. The nano ferrite material is high in magnetic conductivity and saturation magnetic induction intensity; and a crystal grain structure is uniform and fine.
Nano ferrite material, and preparation method thereof
ZHU XIAOBIN (Autor:in) / NIE MIN (Autor:in)
04.11.2015
Patent
Elektronische Ressource
Englisch
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