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The interface design and wave absorbing properties of FeCuNbSiB amorphous alloy strips/Epoxy resin composites
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1.School of Materials Science and Engineering,Nanchang University;2.Institute of Space Science and Technology,Nanchang University

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Fund Project:

National Natural Science Foundation of China (No. 61361008), 973 project prophase research subject of China (NO.2010CB635112) and Graduate innovation special project foundation of Jiangxi province (No. YC2016-B006)

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    Abstract:

    In this paper, aiming at the problem of non-infiltration between FeCuNbSiB amorphous alloy strips and epoxy resin matrix, the interface layer of Cu0.75Fe2.25O4 and Fe3O4 phases, which the thickness was about 5μm~10μm, was successfully obtained on the both sides of FeCuNbSiB amorphous alloy strips by surface chemical modification. The interface layer has high bonding strength with FeCuNbSiB amorphous alloy strips, and good infiltration with epoxy resin matrix. The epoxy resin matrix composites using the amorphous alloy strips as reinforcing materials were prepared according to FSS grid design, the electromagnetic wave absorption peaks of composite board appeared in the frequency range of 13-18GHz and the value of reflectivity R was between -5dB and -10dB.The value of absorption peaks kept constant but absorption peak frequency bands shifted to lower frequency along with increasing the layer number of FeCuNbSiB strips. This kind of character can be used to modify radar absorbing properties of other composites and broaden absorption band.

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[Zhou Jia, Zhu Zhenghou, Zhao Hui. The interface design and wave absorbing properties of FeCuNbSiB amorphous alloy strips/Epoxy resin composites[J]. Rare Metal Materials and Engineering,2019,48(3):797~802.]
DOI:10.12442/j. issn.1002-185X.20170881

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History
  • Received:September 29,2017
  • Revised:December 08,2017
  • Adopted:December 18,2017
  • Online: April 10,2019
  • Published: