| 锌铁氧体的合成及磁电性能 |
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| 引用本文： | 张变芳,刘力虎.锌铁氧体的合成及磁电性能[J].功能材料,2011(Z2). |
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| 作者姓名： | 张变芳 刘力虎 |
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| 作者单位： | 石家庄铁道学院数理系;河北师范大学物理科学与信息管理学院; |
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| 基金项目： | 国家杰出青年基金资助项目(50625518); 河北省教育厅项目(Z2010305,2009155) |
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| 摘 要： | 用化学共沉淀法制备了系列锌铁氧体微粉。借助于TG-DTA、XRD、SEM、VSM和PNA技术,对干凝胶的热分解过程、产物的物相、微观结构、磁性能和介电常数进行了研究。结果表明,随煅烧温度的提高,锌铁氧体微粉的粒径增大,磁性也增强;尖晶石结构的块状锌铁氧体具有负电阻率温度系数,而且随着煅烧温度的提高,介电常数减小。
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| 关 键 词： | 化学共沉淀法 锌铁氧体 电阻率 介电常数 |
Synthesis and magnetoelectric properties of zinc ferrite |
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| ZHANG Bian-fang,LIU Li-hu.Synthesis and magnetoelectric properties of zinc ferrite[J].Journal of Functional Materials,2011(Z2). |
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| Authors: | ZHANG Bian-fang LIU Li-hu |
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| Affiliation: | ZHANG Bian-fang1,LIU Li-hu2 (1.Department of Mathematics and Physics,Shijiazhuang Tiedao College,Shijiazhuang 050043,China,2.College of Physics Science and Information Engineering,Hebei Normal University,Shijiazhuang 050016,China) |
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| Abstract: | Zinc ferrite powders were prepared by chemical coprecipitation.The themal decomposition,phase composition,microstructure,magnetic properties and dielectric constant of zinc ferrite were characterized by TG-DTA,XRD,SEM,VSM and PNA techniques.The results showed that,with the calcination temperature increased,particle size of zinc ferrite powders increased and magnetism strengthened.Zinc ferrite massives of spinel structure had a negative temperature coefficient of resistivity,moreover,with the calcination tem... |
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| Keywords: | chemical coprecipitation zinc ferrite resistivity dielectric constant |
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