| 高Mn含量对NiZnCu铁氧体性能的影响 |
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| 引用本文： | 李勃,齐西伟,岳振星,李龙土,周济.高Mn含量对NiZnCu铁氧体性能的影响[J].无机材料学报,2001,16(6):1225-1228. |
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| 作者姓名： | 李勃 齐西伟 岳振星 李龙土 周济 |
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| 作者单位： | 清华大学材料系新型陶瓷与精细工艺国家重点实验室 北京 100084 |
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| 基金项目： | 国家“863”高技术资助项目(715-Z33-006-0050) |
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| 摘 要： | 研究了在（Ｎｉ０.2Ｃｕ0 .2Ｚｎ0 .６）１．０３（Ｆｅ2Ｏ３)0 ．９７＋０．９７ｘＭnO2(ｘ=０．１～０．５)中，随Ｍｎ含量的变化，磁性能的改变及与微观结构的关系．适量的Ｍｎ掺杂可以提高室温下铁氧体的起始磁导率，而Ｍｎ含量继续增加会促使第二相形成，使磁导率温度系数变大，出现类似铁电体的弛豫现象．
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| 关 键 词： | NiZnCu铁氧体 Mn掺杂 起始磁导率 弛豫现象 |
| 文章编号： | 1000-324(2001)06-1225-04 |
| 收稿时间： | 2000-11-20 |
| 修稿时间： | 2000年11月20 |
Effects of High Mn Component on Properties of NiCuZn Ferrite |
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| LI Bo,QI Xi-Wei,YUE Zhen-Xing,LI Long-Tu,ZHOU Ji.Effects of High Mn Component on Properties of NiCuZn Ferrite[J].Journal of Inorganic Materials,2001,16(6):1225-1228. |
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| Authors: | LI Bo QI Xi-Wei YUE Zhen-Xing LI Long-Tu ZHOU Ji |
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| Affiliation: | State Key Lab of New Ceramics and Fine Processing; Dept. of Materials Science and Engineering; Tsinghua University; Beijing 100084; China |
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| Abstract: | MnO2 was introduced to NiCuZn ferrite. The effects of Mn substitution on the magnetic properties and microstructure of the (Ni0.2 Cu0.2 Zn0.6)1.03 (Fe2O3)0.97+0.97xMnO2 ferrite (x=0.1～0.5) were investigated. Mn content increases the initial permeability, but excess Mn content will result in the formation of a secondary phase. And the initial permeability depending on temperatures is strongly affected by Mn content too. When x≥ 0.4, the temperature coefficient of initial permeability increases quickly, which just like the relaxant phenomenon in ferroelectrics. |
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| Keywords: | NiZnCu ferrite Mn doped initial permeability relaxant phenomenon |
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