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Structure and Microwave Absorption Properties of Nd-Fe-C Alloys
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Guilin University of Electronic Technology,Guilin University of Electronic Technology,Guilin University of Electronic Technology,Guilin University of Electronic Technology,Guilin University of Electronic Technology,Guilin University of Electronic Technology

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    Abstract:

    Nd10.2Fe89.8-xCx (x = 0.0, 2.6, 5.2, 7.8) powder were prepared by arc smelting and ball milling. The structure and morphology of the powder were investigated by x-ray diffraction (XRD) and scanning electron microscopy (SEM). The electromagnetic parameters of the powders were measured by vector network analyzer (VNA) at room temperature. Microwave absorbing properties of Nd10.2Fe89.8-xCx (x = 0.0, 2.6, 5.2, 7.8) depend sensitively on the compositions. The minimum absorption peak frequency shifts to the higher region upon the C content. The minimum reflectivity value of Nd10.2Fe84.6C5.2 can achieve to -13.2 dB at 5.2 GHz and the bandwidth of R < -10 dB achieve 1.2 GHz with the best matching thickness of 1.8 mm. The minimum absorption peak shifts towards lower frequency region with absorbing coating thickness increasing.

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[Pan shunkang, Qiao Ziqiang, Xiong Jilei, Lin Peihao, Cheng Lichun, Wang Zhenzhong. Structure and Microwave Absorption Properties of Nd-Fe-C Alloys[J]. Rare Metal Materials and Engineering,2018,47(6):1734~1738.]
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History
  • Received:April 21,2016
  • Revised:October 16,2016
  • Adopted:November 10,2016
  • Online: September 06,2018

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