| (Zn_(0.3)Co_(0.7))_2-W型钡铁氧体电磁特性及吸波性能 |
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| 引用本文： | 黄啸谷,陈娇,王丽熙,宋杰,许乃岑,张其土.(Zn_(0.3)Co_(0.7))_2-W型钡铁氧体电磁特性及吸波性能[J].电子元件与材料,2010,29(3). |
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| 作者姓名： | 黄啸谷 陈娇 王丽熙 宋杰 许乃岑 张其土 |
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| 作者单位： | 1. 南京工业大学,材料科学与工程学院,江苏,南京,210009
2. 南京工业大学,材料科学与工程学院,江苏,南京,210009;南京工业大学,江苏省无机及其复合新材料重点实验室,江苏,南京,210009 |
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| 基金项目： | 民口配套资助项目(NoMKPT—232) |
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| 摘 要： | 采用sol-gel法合成了Ba(Zn0.3Co0.7)2Fe16O27六方铁氧体样品。通过XRD、SEM和Agilent8722ET网络分析仪等表征手段,研究了样品的显微结构、电磁特性及吸波性能。结果表明:在1250℃下制得的样品基本为单一相的Ba(Zn0.3Co0.7)2Fe16O27铁氧体。样品在14GHz附近出现介电损耗峰,在8～12GHz和15～17GHz内出现很宽的磁损耗。当吸波涂层厚度为1.85mm时,在15.3GHz左右反射损耗峰值可达到–23dB,并且在9～18GHz内反射损耗RL小于–10dB,具有优异的微波吸收性能。
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| 关 键 词： | W型铁氧体 电磁特性 吸波性能 |
Electromagnetic properties and microwave absorbing behavior of (Zn_(0.3)Co_(0.7)) _2-W type barium ferrites |
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| HUANG Xiaogu,CHEN Jiao,WANG Lixi,SONG Jie,XU Naicen,ZHANG Qitu.Electromagnetic properties and microwave absorbing behavior of (Zn_(0.3)Co_(0.7)) _2-W type barium ferrites[J].Electronic Components & Materials,2010,29(3). |
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| Authors: | HUANG Xiaogu CHEN Jiao WANG Lixi SONG Jie XU Naicen ZHANG Qitu |
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| Affiliation: | 1.College of Materials Science and Engineering;Nanjing University of Technology;Nanjing 210009;China;2.Jiangsu Provincial Key Laboratory of New Materials of Inorganic and its Composites;China |
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| Abstract: | Ba(Zn_(0.3)Co_(0.7)) _2Fe_(16)O_(27) hexaferrite sample was prepared by the sol-gel method. The microstructure, electromagnetic properties and microwave absorbing behavior of the samples were characterized by XRD, SEM and network analyzer (Agilent 8722ET). It is found that the single phase of Ba(Zn_(0.3)Co_(0.7)) _2Fe_(16)O_(27) is formed at 1 250 ℃. The dielectric loss peak exhibits at 14 GHz, and magnetic loss appears at wide frequency range of 8～12 GHz and 15～17 GHz. The maximum reflection loss (RL) reaches about -23 dB at 15.3 GHz and RL is below -10 dB in the frequency range of 9～18 GHz when the thickness of microwave absorbing coating is 1.85 mm. Evidently, this ferrite has excellent microwave absorbing behavior. |
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| Keywords: | W-type ferrite electromagnetic property microwave absorbing behavior |
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