Facile and mass-producible Ni-added iron nanowires with excellent microwave absorbing performance

Xu Xiang Cai, Sheng Jung Tsou, Yuh Jing Chiou, Ruey Bin Yang, Sz Chian Liou, Wen An Chiou, Hong Ming Lin, Chung Kwei Lin

研究成果: 雜誌貢獻文章同行評審

2 引文 斯高帕斯(Scopus)

摘要

The application of magnetic nanocrystalline powders as radar absorption materials is increasingly attracting R&D interest. Severe agglomeration and mass production, however, are critical issues for practical application of magnetic nanoparticles. In the present study, iron nanowires with varying amounts of nickel addition (0, 1, 10, 30, and 50 wt%) were synthesized via direct reduction of iron salts with the aid of strong NdFeB magnets. The yield rate of these Ni-added iron nanowires (NiFe NWs) exceeded 1 g/min, making them suitable and was feasible for mass production. The characteristics of the so-obtained NiFe NWs were confirmed using field emission scanning electron microscopy, X-ray diffraction, and high-resolution transmission electron microscopy. Composite resins with NiFe NWs additions (3, 5, and 10 wt%) were prepared and examined using the coaxial line method to reveal their microwave absorption characteristics. Experimental results showed that composite resins with 10 wt% NiFe NWs additions possessed superior microwave absorbing properties, with the Ni1Fe99 NWs-added product exhibiting the best performance. When produced with a thickness of 1.7 mm, the reflection loss of the composites reached −39.28 dB at 12.53 GHz. Additionally, the efficient maximum absorption bandwidth was 3.33 GHz, ranging from 14.27 to 17.60 GHz.
原文英語
頁(從 - 到)6527-6537
頁數11
期刊Journal of Materials Research and Technology
27
DOIs
出版狀態已發佈 - 11月 1 2023

ASJC Scopus subject areas

  • 陶瓷和複合材料
  • 生物材料
  • 表面、塗料和薄膜
  • 金屬和合金

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