21-04-2010 дата публикации
Номер: CN0101696108A
Принадлежит:
The invention relates to a technique for preparing inorganic nano materials, in particular to a method for preparing a soft magnetic Ni-Zn ferrite nano material, which has mild reaction condition, is easy to control and can prepare the soft magnetic NI-Zn ferrite nano material with favorable dispersity and uniform grain diameter distribution. The method comprises the following steps of firstly, preparing a mixed salt solution by using Fe3+: Zn2+: Ni2+, then preparing emulsion by using the mass of Tween 80: n-amyl alcohol: cyclohexane, then dropwise adding the mixed salt solution to prepare an inverse micro-emulsion; secondly, dropwise adding a precipitant of NaOH solution to the micro-emulsion for deposition, ageing the micro-emulsion, demulsifying by using acetone, washing, drying and sintering to obtain the needed product. The invention has the advantages of easily obtained materials, low cost, simple operation, simple and convenient apparatus as well as high purity, high yield, high ...
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