采用水热法制备了软磁材料MnFe2O4纳米晶,借助XRD、IR、SEM和VSM对产物进行了表征,着重研究了水热条件如温度和时间等对MnFe2O4纳米晶的形成及其结构和磁性能的影响.结果表明水热温度较低时的产物晶化度和纯度低,表现出较差的磁性能,温度为120℃的产物其饱和磁化强度为15.34 emu/g,剩磁比为0.08,矫顽力为81 Oe,而在200℃下水热产物饱和磁化强度为51.49 emu/g,剩磁比达到0.14,矫顽力为121 Oe.
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