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以Li2CO3和α-Fe2O3粉体为原料，通过高能球磨的机械化学处理，制备出具有固溶体结构的Li铁氧体的前驱体．将前驱体在远低于固相反应所需的温度下进行热处理，得到Li铁氧体粉体，这一反应是通过LiFeO2作为中间相完成的．用Mossbauer谱、XRD、IR光谱、TEM及VSM方法对制得的Li铁氧体粉体进行了表征．结果表明，所得铁氧体为纳米粒子，具有有序结构，其比饱和磁化强度高于用湿化学方法所得的纳米粒子，且具有较高的矫顽力．
Li 2 CO 3 and α-Fe 2 O 3 powders were used as raw materials to prepare Li ferrite precursors with solid solution structure by mechanochemical treatment of high-energy ball milling. The precursor is heat-treated at a much lower temperature than that required for the solid phase reaction to obtain Li ferrite powder, which reaction is accomplished by using LiFeO2 as the intermediate phase. The prepared Li ferrite powders were characterized by Mossbauer spectroscopy, XRD, IR spectroscopy, TEM and VSM methods. The results show that the obtained ferrite is a nanoparticle with an ordered structure, and its specific saturation magnetization is higher than that obtained by a wet chemical method and has a high coercivity.