| 溶胶-凝胶法制备锌掺杂Sr_3Co_2Fe_(24)O_(41) Z型铁氧体及其性能 |
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| 引用本文： | 李茹民,鲁玉立,赵莹莹.溶胶-凝胶法制备锌掺杂Sr_3Co_2Fe_(24)O_(41) Z型铁氧体及其性能[J].功能材料与器件学报,2009,15(6). |
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| 作者姓名： | 李茹民 鲁玉立 赵莹莹 |
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| 作者单位： | 哈尔滨工程大学材料科学与化学工程学院,黑龙江哈尔滨,150001 |
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| 摘 要： | 利用柠檬酸溶胶-凝胶法合成了锌掺杂Sr_3(Zn_xCo_(1-x))_2Fe_(24)O_(41),(x=0～0.8)的Z型铁氧体.测试其结构、磁性能、电磁性能与吸波特性.实验结果表明,适量掺杂Zn~(2+)有利于磁性能及吸波性能的改善,在x=0.2时比饱和磁化强度最大,可达51.36 A·m~2·kg~(-1);吸波性能优良,最大吸收量为35.12dB;合成最佳温度为1200℃烧结2小时.
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| 关 键 词： | 溶胶凝胶法 Z型铁氧体 磁性能 电磁性能 吸波特性 |
Characterization of Z Type Hexaferrite Zn-Doped Sr_3Co_2Fe_(24)O_(41) Prepared with Sol-Gel Method |
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| LI Ru-min,LU Yu-li,ZHAO Ying-ying.Characterization of Z Type Hexaferrite Zn-Doped Sr_3Co_2Fe_(24)O_(41) Prepared with Sol-Gel Method[J].Journal of Functional Materials and Devices,2009,15(6). |
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| Authors: | LI Ru-min LU Yu-li ZHAO Ying-ying |
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| Affiliation: | LI Ru-min,LU Yu-li,ZHAO Ying-ying(College of Material Science and Chemical Engineering,Harbin Engineering University,Harbin 150001,China) |
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| Abstract: | Z type hexaferrite doped with Zn,Sr_3(Zn_xCo_(1-x))_2Fe(_24)O_(41),(x=0～0.8)micro-crystals were synthesized through a citric acid sol-gel method.Their crystal structure,magnetic property,electromagnetic property and microwave absorbing property were studied.The result show that doping with Zn~(2+) appropriately could conduce to the improvement of magnetic properties and absorbing properties.Specific saturation magnetization of Sr_3(Zn_xCo_(1-x))_2Fe(_24)O_(41) had a maximum which is 51.36 A·m~2·kg~(-1)at x=0.2;Absorption quantity of Sr_3(Zn_xCo_(1-x))_2Fe_(24)O_(41) had a maximum which is 35.12dB at x=0.2 aswell;The micro-crystal powders were obtained at 1200℃ and were sintered 2h. |
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| Keywords: | sol-gel method Z type ferrite magnetic property Electromagnetic property microwave absorbing property |
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