...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Physics, D. Applied Physics: A Europhysics Journal >Preparation of magnetic cobalt fibres and their microwave properties
【24h】

Preparation of magnetic cobalt fibres and their microwave properties

机译：磁性钴纤维的制备及其微波性能

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

A novel method for preparing short magnetic metal fibres is proposed. In this method, compounds of magnetic metal are reduced in a hot Liquid polyol, and the reducing agent is the polyol itself. As the reaction takes place, a constant magnetic held is applied to induce the growth of metal fibres. Using this method, magnetic cobalt fibres of a diameter down to 1.2 mum were successfully prepared. The prepared cobalt fibres had a narrow diameter distribution and a low degree of agglomeration, and their diameters could be easily controlled by changing the reaction temperature. Using the transmission/reflection waveguide method, the complex permeability and permittivity of cobalt fibre-epoxy resin composites were measured in the frequency range of 8.2-12.4 GHz. The results of the measurements show that cobalt fibres present magnetic loss at microwave frequency, and that the microwave permeability and permittivity of cobalt fibres decrease as the diameter increases. [References: 24]
机译：提出了一种制备磁性金属短纤维的新方法。在这种方法中，磁性金属化合物在热的液态多元醇中被还原，还原剂为多元醇本身。随着反应的进行，施加恒定的磁场以诱导金属纤维的生长。使用这种方法，成功地制备了直径低至1.2微米的磁性钴纤维。所制备的钴纤维的直径分布窄且团聚度低，并且通过改变反应温度可以容易地控制其直径。使用透射/反射波导方法，在8.2-12.4 GHz的频率范围内测量了钴纤维环氧树脂复合材料的复磁导率和介电常数。测量结果表明，钴纤维在微波频率下存在磁损耗，并且钴纤维的微波渗透率和介电常数随着直径的增加而降低。 [参考：24]

著录项

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