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ACTA AERONAUTICAET ASTRONAUTICA SINICA >

2026 , Vol. 47 >Issue 12: 432766 - 432766

DOI: https://doi.org/10.7527/S1000-6893.2025.32766

Material Engineering and Mechanical Manufacturing

One-step electrical explosion preparation of nitrogen-doped graphite and its microwave absorption properties

  • Yupeng WEI ,
  • Lele LIU ,
  • Rongpeng GUO ,
  • Yixuan DA ,
  • Meng ZHANG ,
  • Zhengqi LU ,
  • Xuebing YAN ,
  • Hui ZHOU ,
  • Xudong WANG ,
  • Liang ZHU
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  • 1.School of Materials Science and Engineering，Lanzhou University of Technology，Lanzhou 730050，China
    2.State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals，Lanzhou University of Technology，Lanzhou 730050，China
    3.State Key Laboratory of Special Rare Metal Materials，Northwest Rare Metal Materials Research Institute Ningxia Co. ，Ltd，Shizuishan 753000，China
    4.School of Materials Engineering，Lanzhou Institute of Technology，Lanzhou 730050，China
E-mail：zhul@lut.edu.cn

Received date: 2025-09-09

  Revised date: 2025-10-04

  Accepted date: 2025-11-10

  Online published: 2025-12-23

Supported by

National Natural Science Foundation of China(52262012);Key Research and Development Plan of Gansu Province(25YFGA025);State Key Laboratory of Special Rare Metal Materials, China Nonferrous Metal （Ningxia） Orient Group Co., Ltd(SKL2021K001);The Postdoctoral Program at Station of Gansu(23JRRA762);University Young Doctor Support Program in Gansu Province in 2023(2023QB-051)

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Abstract

Graphene exhibits significant application potential due to its excellent electrical conductivity and low density. However， the inability of pristine graphene to satisfy impedance matching criteria limits its application in the electromagnetic wave absorption field. Currently， nitrogen doping can optimize the microwave absorption properties of graphene， but the preparation process is complicated and accompanied by the generation of organic waste liquids that cause environmental pollution. Therefore， replacing graphene low-cost graphite to fabricate carbon-based wave-absorbing composite holds considerable research value. In this study， the nitrogen-doped graphite as electromagnetic wave-absorbing materials were prepared by a one-step electrical explosion method under nitrogen-argon （N2-Ar） mixed atmospheres with different volume ratios. Experimental results demonstrate the the nitrogen-doped graphite prepared under a 50vol% N2-Ar mixed atmosphere achieves a minimum Reflection Loss （RL） value of -50.40 dB. When the thickness is 1.30 mm， its maximum Effective Absorption Bandwidth （EAB） reaches 4.24 GHz， and the Radar Cross-Section （RCS） reduction value attains 36.46 dB m2. The one-step electrical explosion method for preparing the nitrogen-doped graphite provides a new insight for the design of low-cost electromagnetic wave-absorbing materials.

Key words： electrical explosion; nitrogen-doped graphite; microwave absorption properties; reflection loss; Radar Cross-Section (RCS)

Cite this article

Yupeng WEI , Lele LIU , Rongpeng GUO , Yixuan DA , Meng ZHANG , Zhengqi LU , Xuebing YAN , Hui ZHOU , Xudong WANG , Liang ZHU . One-step electrical explosion preparation of nitrogen-doped graphite and its microwave absorption properties[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2026 , 47(12) : 432766 -432766 . DOI: 10.7527/S1000-6893.2025.32766

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