| ZnO包覆Fe0.7Ni0.3对电磁参数的影响 |
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| 引用本文： | 王琦,官建国,王维,刘飚,张清杰. ZnO包覆Fe0.7Ni0.3对电磁参数的影响[J]. 材料科学与工艺, 2005, 13(3): 231-234 |
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| 作者姓名： | 王琦 官建国 王维 刘飚 张清杰 |
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| 作者单位： | 济南大学,材料学院,山东,济南,250022;武汉理工大学,新材料研究所,湖北,武汉,430070;武汉理工大学,新材料研究所,湖北,武汉,430070 |
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| 基金项目： | 国家高技术研究发展计划(863计划) , 国家重点实验室基金 |
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| 摘 要： | 为了降低Fe0.7Ni0.3的介电常数,采用机械合金化方法制备了以ZnO为外壳,具有核壳结构的Fe0.7Ni0.3颗粒,利用SEM、XRD对Fe0.7Ni0.3包覆前后样品的形貌和相组成进行了分析,并用矢量网络分析仪研究了ZnO包覆、ZnO包覆量、包覆时间对Fe0.7Ni0.3电磁参数的影响.结果表明:ZnO包覆可明显降低Fe0.7Ni0.3的介电常数,同时降低磁导率虚部;磁导率实部随频率先降后升;ZnO包覆量、包覆时间均对Fe0.7Ni0.3的电磁参数有明显影响.
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| 关 键 词： | ZnO 包覆 Fe0.7Ni0.3 电磁参数 |
| 文章编号： | 1005-0299(2005)03-0231-04 |
| 修稿时间： | 2004-01-06 |
Effect of ZnO coating Fe0. 7Ni0.3 on electromagnetism parameter |
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| WANG Qi,GUAN Jian-guo,WANG Wei,Liu Biao,ZHANG Qing-jie. Effect of ZnO coating Fe0. 7Ni0.3 on electromagnetism parameter[J]. Materials Science and Technology, 2005, 13(3): 231-234 |
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| Authors: | WANG Qi GUAN Jian-guo WANG Wei Liu Biao ZHANG Qing-jie |
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| Abstract: | In order to decrease the permeability of Fe_ 0.7Ni_ 0.3, the core-shell particles of ZnO coating Fe_ 0.7Ni_ 0.3 were prepared by the Mechanical Alloying. Kinetics model of core-shell structure was built up. Effect of coating ZnO,ZnO content and coating time on Fe_ 0.7Ni_ 0.3 electromagnetism parameter was studied. Results showed that with ZnO coating Fe_ 0.7Ni_ 0.3, the permittivity of coated Fe_ 0.7Ni_ 0.3 considerably decreases, and its imaginary part of permeability decreases, too; the real part of permeability decreases first and starts to rise later; and significant influence of amount of ZnO and time of coating on Fe_ 0.7Ni_ 0.3 electromagnetism parameter. |
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| Keywords: | ZnO coationg Fe_ 0.7Ni_ 0.3 electromagnetism parameter |
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