利用高能球磨法球磨不同时间得到不同铁掺杂量的TiO2粉, 并利用电感耦合等离子发射光谱仪、X射线衍射仪、拉曼光谱仪和振动样品磁强计对粉体的物相组成和磁性能进行了分析。结果表明: 球磨不仅使铁固溶进入TiO2晶格中, 还诱发了TiO2从锐钛矿相向S相和金红石相的转变, 粉体中未发现铁及铁的氧化物; 所有粉体都表现出室温铁磁性, 球磨3 h后磁性最大, 随着球磨时间的延长, 饱和磁化强度逐渐减小; 铁掺杂金红石相的磁性大于掺杂锐钛矿相的, 而铁掺杂相S的磁性能又远远大于掺杂进入前两相的。
所属栏目
国家自然科学基金资助项目(50471045, 10804071); 上海高校选拔培养优秀青年教师科研专项基金资助项目(sdj08014)
收稿日期
2010/5/172011/3/4
作者单位
林璠:上海电机学院 数理教学部, 上海 200240华东师范大学物理系, 上海 200241
蒋冬梅:华东师范大学物理系, 上海 200241
马学鸣:华东师范大学物理系, 上海 200241
备注
林璠(1980-), 女, 浙江瑞安人, 讲师, 博士。
引用该论文:
LIN Fan,JIANG Dong-mei,MA Xue-ming.Phase Composition and Magnetic Properties of Fe-Doped TiO2 Powders With Different Milling Times[J].Materials for mechancial engineering,2011,35(5):14～18
林璠,蒋冬梅,马学鸣.不同球磨时间铁掺杂TiO2粉的物相组成和磁性[J].机械工程材料,2011,35(5):14～18
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