| 等量La-Zn替代对锶铁氧体结构和磁性能的影响 |
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| 引用本文： | 章宏,王忆,姚少喜,林秉坤,吴捷.等量La-Zn替代对锶铁氧体结构和磁性能的影响[J].磁性材料及器件,2011(6):31-34. |
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| 作者姓名： | 章宏 王忆 姚少喜 林秉坤 吴捷 |
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| 作者单位： | 五邑大学功能材料研究所;江粉磁材股份有限公司研发部 |
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| 基金项目： | 国家自然科学基金资助项目(10874160);广东省科技计划基金资助项目([2007]173);江门市科技计划项目(江财工[2009]217) |
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| 摘 要： | 采用陶瓷工艺制备了La、Zn替代的Sr1-xLaxFe12-xZnxO19 (x=0,0.05,0.1,0.15,0.2,0.25)锶铁氧体,分析了La3+,Zn2+共同取代对锶铁氧体结构和磁性能的影响.X射线衍射分析表明,随着La3+、Zn2+离子替代量的增加,锶铁氧体主体仍为六角晶结构.通过扫描电镜对样品的形貌结构...
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| 关 键 词： | 锶铁氧体 离子取代 结构 磁性能 |
Effect of La-Zn substitution on the microstructure and magnetic properties of Sr-ferrite |
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| ZHANG Hong,WANG Yi,YAO Shao-xi,LIN Bing-kun,WU Jie.Effect of La-Zn substitution on the microstructure and magnetic properties of Sr-ferrite[J].Journal of Magnetic Materials and Devices,2011(6):31-34. |
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| Authors: | ZHANG Hong WANG Yi YAO Shao-xi LIN Bing-kun WU Jie |
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| Affiliation: | 1.Institute of Functional Material,Wuyi University,Jiangmen 529020,China; 2.R&D Department,JPMF Guangdong Co,Ltd,Jiangmen 529020,China |
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| Abstract: | Strontium ferrites with La and Zn ions substitution(Srl-xLaxFel2-xZnxO19(x=0,0.05,0.1,0.15,0.2,0.25))were prepared by conventional ceramic method,and the influence of Co-doped La3+,Zn2+ ions on the microstructure and magnetic properties of hexagonal strontium ferrites has been investigated.X-ray diffraction analysis showed that,with increasing La3+,Zn2+ ion substitution,strontium ferrite remains hexagonal strontium ferrite structure.SEM results showed that the sample has grain shape of hexagonal ferrite.The grain size decreases with increasing x.Measurement of magnetic properties indicated that,residual magnetic induction Br increases first and then decreases with increasing x,and the maximun value was obtained when the substitution amount x is 0.15.Coercive force Hcj and Hcb decrease quickly with the increase of La3+,Zn2+ dopants.It demonstrated that proper substation of La3+,Zn2+ is fruitful to residual magnetization but harmful to coercivity of the ferrite. |
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| Keywords: | strontium ferrite ionic substitution microstructure magnetic properties |
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