以柠檬酸和金属盐为原料,采用有机凝胶-热分解法成功制备了Mno0.2 Zn0.8Fe2-xCex O4系列铁氧体纤维.通过XRD、SEM和VSM等技术对产物进行了表征,研究了Ce3+掺杂对Mn-Zn铁氧体纤维的结构,微观形貌及磁性能的影响.结果表明,所制得的纤维轴向较为均匀,长径比较大,直径在0.5～3.5μm之间,组成纤维的晶粒平均尺寸为11.6～12.8nm.Ce3+掺杂没有引起Mno0.2 Zn0.8Fe2-xCex O4纤维结构的明显变化,仍为单一的立方尖晶石结构,但晶格常数和晶粒粒径随Ce3+掺入量的增加而略微增大.Ce3+掺杂使Mn-Zn铁氧体纤维的饱和磁化强度增大,矫顽力下降,软磁性能有所提高.
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