| Z型铁氧体Ba_3（MnZn）_xCo_（2（1-x））Fe_（24）O_（41）的微波吸收性能 |
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| 引用本文： | 周克省,陈颖,秦宪明,邓联文,夏辉,黄生祥,卢玉娥,齐伟,韩建华.Z型铁氧体Ba_3（MnZn）_xCo_（2（1-x））Fe_（24）O_（41）的微波吸收性能[J].功能材料,2011,42(10). |
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| 作者姓名： | 周克省 陈颖 秦宪明 邓联文 夏辉 黄生祥 卢玉娥 齐伟 韩建华 |
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| 作者单位： | 1. 中南大学物理科学与技术学院,湖南长沙,410083
2. 厦门市宏业工程建设技术有限公司,福建厦门,361001 |
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| 基金项目： | 国家自然科学基金资助项目(60771028); 湖南省自然科学基金资助项目(10JJ5049) |
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| 摘 要： | 用溶胶-凝胶法制备锰锌掺杂Z型钡钴铁氧体Ba3（MnZn）xCo2（1-x）Fe24O41（x=0.0、0.1、0.2、0.3、0.4、0.5）样品。用XRD和SEM对样品的晶体结构、颗粒形貌进行表征,用微波矢量网络分析仪测试该样品在2～18GHz微波频率范围的复介电常数、复磁导率,根据测量数据计算电磁损耗角正切及反射率,探讨该材料的微波吸收性能与电磁损耗机理。结果表明样品为Z型六角铁氧体晶体结构,颗粒呈六角片状形貌;当样品厚度为2.2mm、x=0.4时,在频率3.9GHz处吸收峰值为38.5dB,10dB以上频带宽度为3.8GHz;该材料能在1～5.8GHz微波低频范围实现有效吸收,其微波吸收兼具磁损耗和介电损耗,但磁损耗更为显著。
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| 关 键 词： | 溶胶-凝胶法 Z型钡铁氧体 微波吸收 电磁损耗 |
Microwave absorbing properties of Z-type hexaferrite Ba_3(MnZn)xCo_(2(1-x))Fe_(24)O_(41) |
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| ZHOU Ke-sheng,CHEN Ying,QIN Xian-ming,DENG Lian-wen,XIA Hui,HUANG Sheng-xiang,LU Yu-e,QI Wei,HAN Jian-hua.Microwave absorbing properties of Z-type hexaferrite Ba_3(MnZn)xCo_(2(1-x))Fe_(24)O_(41)[J].Journal of Functional Materials,2011,42(10). |
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| Authors: | ZHOU Ke-sheng CHEN Ying QIN Xian-ming DENG Lian-wen XIA Hui HUANG Sheng-xiang LU Yu-e QI Wei HAN Jian-hua |
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| Affiliation: | ZHOU Ke-sheng1,CHEN Ying1,QIN Xian-ming2,DENG Lian-wen1,XIA Hui1,HUANG Sheng-xiang1,LU Yu-e1,QI Wei1,HAN Jian-hua1(1.School of Physics and Technology,Central South University,Changsha 410083,China,2.Xiamen Hongye Project Build Technique Co.Ltd.,Xiamen 361001,China) |
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| Abstract: | The samples of MnZn-doped Z-type barium ferrite Ba3(MnZn)xCo2(1-x)Fe24O41(x=0.1,0.2,0.3,0.4,0.5) were prepared by sol-gel process.The crystal structure and surface morphology of the particles were characterized by X-ray diffraction(XRD) and scanning electron microscope(SEM),respectively.Their complex dielectric constant and complex permeability were measured by microwave vector network analyzer in the frequency range from 2 to 18GHz,the reflection coefficient and loss tangent were calculated according to me... |
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| Keywords: | sol-gel Z-type barium ferrite microwave absorption electromagnetic loss |
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