| Co~(2+)替代对NiCuZn铁氧体电磁性能的影响 |
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| 引用本文： | 李旭哲,苏桦,张怀武,师凯旋,顾卫卫.Co~(2+)替代对NiCuZn铁氧体电磁性能的影响[J].磁性材料及器件,2010,41(5). |
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| 作者姓名： | 李旭哲 苏桦 张怀武 师凯旋 顾卫卫 |
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| 作者单位： | 电子科技大学,电子薄膜与集成器件国家重点实验室,四川成都,610054 |
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| 摘 要： | 采用固相反应法制备了低温烧结NiCuZn铁氧体,研究了Co2+替代量对铁氧体材料显微结构、饱和磁感应强度、矫顽力以及在偏置磁场下磁导率和品质因数的影响。研究表明,对于低磁导率的NiCuZn铁氧体,适量Co2+替代可对铁氧体负的磁晶各向异性常数进行补偿,能在一定程度上提升材料的磁导率。在大直流偏置场的作用下,铁氧体的磁导率都出现明显的下降,而矫顽力是决定其增量磁导率的主要因素。
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| 关 键 词： | NiCuZn铁氧体 磁导率 直流叠加 Co2 替代 |
Effect of Co~(2+) Substitution on the Electromagnetic Properties of Low-temperature-fired NiCuZn Ferrites |
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| LI Xu-zhe,SU Hua,ZHANG Huai-wu,SHI Kai-xuan,GU Wei-wei.Effect of Co~(2+) Substitution on the Electromagnetic Properties of Low-temperature-fired NiCuZn Ferrites[J].Journal of Magnetic Materials and Devices,2010,41(5). |
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| Authors: | LI Xu-zhe SU Hua ZHANG Huai-wu SHI Kai-xuan GU Wei-wei |
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| Affiliation: | LI Xu-zhe,SU Hua,ZHANG Huai-wu,SHI Kai-xuan,GU Wei-wei State Key Laboratory of Electronic Films , Integrated Devices,University of Electronic Science , Technology of China,Chengdu 610054,China |
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| Abstract: | In this paper,low-temperature-fired NiCuZn ferrites were prepared by solid-state reaction method.The effects of Co2+ substitution on microstructure,saturation magnetic flux density,coercivity and permeability,Q-factor under DC-bias-superposition field were investigated.It was found that proper content of Co2+ substitution could compensate the negative magnetocrystalline anisotropy constant of the ferrite and resultantly lead to the increase of permeability.Permeability continuously decreases with increasing... |
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| Keywords: | NiCuZn ferrite permeability DC-bias superposition Co2 substitution |
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