• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>RSC Advances >Electromagnetic and microwave absorption properties of iron pentacarbonyl pyrolysis-synthesized carbonyl iron fibers
【24h】

Electromagnetic and microwave absorption properties of iron pentacarbonyl pyrolysis-synthesized carbonyl iron fibers

机译：铁芳羰基热解合成羰基纤维的电磁和微波吸收性能

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The present study executed iron pentacarbonyl pyrolysis to synthesize one-dimensional structured carbonyl iron fibers (CIFs)viacarrier gas induced flow. The obtained CIFs with a diameter of 100-300 nm and length-diameter ratio of more than 20, are actually composed of a large number of nanocrystalline aggregates. We investigated the dependence of the structure, morphology, and static magnetic and electromagnetic properties of the CIFs on the pyrolysis temperatures. CIFs synthesized at 300 degrees C (denoted as CIF-300) exhibited optimal microwave absorption properties dependent on the fiber structure and well-matched impedance. An optimal reflection loss of -58.1 dB was observed at 13.8 GHz with a matching thickness of 1.43 mm. Furthermore, CIF-300 presented a broad effective absorption bandwidth (RL <= -10 dB) of 5.66 GHz with a thickness of 1.44 mm, indicating that it could be applied in practical applications from 3.74 GHz to 18.0 GHz by tuning its thickness from 1.0 mm to 4.0 mm. This paper not only reveals that the CIFs synthesized at 300 degrees C have great potential application in microwave absorbing materials (MAMs) with thin thicknesses, wide absorption bandwidths, and strong absorption intensities, but also provides a simple approach to prepare metal fibers.
机译：本研究执行了铁戊羰基热解，以合成一维结构羰基铁纤维（CIFS）通载气体诱导的流动。具有直径为100-300nm和长直径比大于20的CIF，实际上由大量的纳米晶体聚集体组成。我们调查了CIFS在热解温度上的结构，形态和静态磁性和电磁特性的依赖性。在300摄氏度（表示为CIF-300）的CIFs在300摄氏度（表示为CIF-300）上表现出依赖于纤维结构和匹配的阻抗的最佳微波吸收性能。在13.8GHz中观察到-58.1dB的最佳反射损耗，匹配厚度为1.43mm。此外，CIF-300呈现了5.66GHz的宽度有效的吸收带宽（RL <= -10dB），厚度为1.44毫米，表明它可以通过从1.0的厚度调整其厚度从3.74GHz到18.0GHz的实际应用中应用mm到4.0 mm。本文不仅揭示了300摄氏度合成的CIFS在微波吸收材料（MAM）中具有较大的潜在应用，具有薄的厚度，宽吸收带宽和强烈的吸收强度，还提供了一种制备金属纤维的简单方法。

著录项

  • 来源
    《RSC Advances》 |2020年第40期|共10页
  • 作者

    Ge Chaoqun; Wang Liuying; Liu Gu; Xu Kejun; Wang Long; Zhang Lei; He Xuan;

  • 作者单位

    Xian Res Inst High Technol Xian 710025 Peoples R China;

    Xian Res Inst High Technol Xian 710025 Peoples R China;

    Xian Res Inst High Technol Xian 710025 Peoples R China;

    Xian Res Inst High Technol Xian 710025 Peoples R China;

    Xian Res Inst High Technol Xian 710025 Peoples R China;

    Changan Univ Sch Elect &

    Control Engn Xian 710064 Peoples R China;

    Xian Res Inst High Technol Xian 710025 Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号