Enhanced soft magnetic properties of iron powders through coating MnZn ferrite by one-step sol–gel synthesis
Liu Dong †, Gao Shanmin ‡, Jin Rencheng, Wang Feng, Chu Xiaoxiao, Gao Taiping, Wang Yubao
       

The SEM images showing the surface morphology of the Fe powders coated with 2.0 wt% MnZn ferrites by: (a) and (b) mechanical mixing; (c) and (d) sol–gel method. (e) The cross-sectional SEM image of the as-coated Fe powder. (d) and (f) are taken from the selected rectangle regions in (c) and (e), respectively.