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材料工程  2008 

水热熟化对Fe3O4纳米颗粒性能的影响

Keywords: Fe3O4,纳米颗粒,水热,磁性能

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Abstract:

采用共沉淀法制备纳米Fe3O4,并采用水热处理方式使其熟化。利用X射线衍射仪(XRD)、透射电镜(TEM)、振动样品磁强计(VSM)对Fe3O4进行表征。XRD结果表明,所制得的Fe3O4成分均一;通过TEM照片可以看出,熟化后颗粒结晶度提高,颗粒尺寸在20nm左右;磁化曲线表明经水热熟化后,Fe3O4磁性能有明显提高。

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