采用溶胶-凝胶法,制备出具有尖晶石结构的钴铁氧体.经激光粒度仪、XRD、TEM、VSM等方法测定,结果表明产品为平均粒径50～60nm的CoFe2O4尖晶石相,外观近似球形,分散性较好,组成均匀,矫顽力及比饱和磁化强度分别为78kA/m和72Am2/kg,该法制备的纳米粉体工艺简单.
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