| 高磁导率Mn -Zn铁氧体的磁性能依赖性研究 |
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| 引用本文： | 汪忠柱,胡国光,尹萍,方以坤.高磁导率Mn -Zn铁氧体的磁性能依赖性研究[J].安徽大学学报(自然科学版),2001,25(3):43-47,52. |
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| 作者姓名： | 汪忠柱 胡国光 尹萍 方以坤 |
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| 作者单位： | 安徽大学 |
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| 基金项目： | 安徽省自然科学基金;97416004; |
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| 摘 要： | 介绍利用化学共沉淀法制备高磁导率 (μi=6 0 0 0 - 10 5 0 0 )Mn -Zn铁氧体材料过程 ;通过在配方中控制ZnO的含量和在不同的平衡氧分压气氛中进行缓慢冷却 ,研究所制备的高磁导率Mn -Zn铁氧体的磁性能差异 ,并借助多元复合Mn -Zn铁氧体的固溶体模型和平衡氧分压理论分析 ,表明存在对磁性能的影响起关键作用的最佳Fe2 +和Fe3O4的含量 ;同时还分析了ZnO含量对Bs、Tc、Hc的影响和当ZnO >2 7mol%时的配方中 ,μi 急剧下降的原因
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| 关 键 词： | 化学共沉淀法 磁导率 Mn-Zn铁氧体 Fe2+和Fe3O4的含量 |
| 文章编号： | 1000-2162(2001)03-0043-05 |
Investigation on dependency of magnetic properties of high permeability Mn-Zn ferrite |
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| WANG Zhong-zhu,HU Guo-guang,YIN Ping,FANG Yi-kun.Investigation on dependency of magnetic properties of high permeability Mn-Zn ferrite[J].Journal of Anhui University(Natural Sciences),2001,25(3):43-47,52. |
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| Authors: | WANG Zhong-zhu HU Guo-guang YIN Ping FANG Yi-kun |
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| Abstract: | Preparation of high peameability Mn-Zn ferrite by chemical coprecipitation process was reported in this paper.Those specimen with various ZnO content were cooled slowly in different balance oxygen partial pressure atmosphere.Their magnetic properties were compared by using the model of solid-melt of polycrystal Mn-Zn ferrite and the theory of homogenization oxygen partial pressure,which shows an optimum Fe 2+ and Fe 3O 4 content for best magnetic properties.Bs?Tc and Hc dependence on ZnO content and the reason for μ i decrease quickly when ZnO>27mol% were also analysed. |
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| Keywords: | chemical coprecipitation process peameability Mn-Zn ferrite Fe 2+ and Fe 3O 4 content |
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