Journal of Magnetics

  • 제21권1호
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  • Pages.61-64
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  • 2016
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  • 1226-1750(pISSN)
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  • 2233-6656(eISSN)
한국자기학회 (The Korean Magnetics Society)
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Preparation and Electromagnetic Properties of an Electromagnetic Wave Absorber

  • Sun, Chang (Co-Innovation Center of Green Building, Shandong Jianzhu University) ;
  • Sun, Kangning (Engineering Ceramics Key Laboratory of Shandong Province, Shandong University) ;
  • Pang, Laixue (Research Center for Road Safety, Emergency, Disaster Reduction Technology, Shandong Jiaotong University) ;
  • Liu, Jian (School of Material Science and Engineering, Shandong Jianzhu University)
  • 투고 : 2015.12.14
  • 심사 : 2016.02.01
  • 발행 : 2016.03.31
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초록

In this study, we report the as-prepared MgO-doped $BaFe_{12}O_{19}$, which was prepared by calcination technique and high-energy ball milling process, as an electromagnetic wave absorber. The phase analysis of $BaFe_{12}O_{19}$ and the as-prepared MgO-doped $BaFe_{12}O_{19}$ was detected utilizing X-ray Diffractometer (XRD). The microstructure was characterized using Scanning Electron Microscope (SEM). By means of the transmission/reflection coaxial line method, the electromagnetic properties and microwave absorbing properties of the as-prepared electromagnetic wave absorber were studied. It is found that the electromagnetic wave absorber has a minimum reflection loss value of -41 dB at 4.27 GHz with a matching thickness of 2.6 mm. The experiment results revealed that the as-prepared electromagnetic wave absorber could find potential applications in many military as well as commercial industries.

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