| 纳米晶Fe85Si1Al6Cr8片状颗粒材料微波吸收特性 |
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| 引用本文： | 江建军,付祺伟,邓联文,何华辉.纳米晶Fe85Si1Al6Cr8片状颗粒材料微波吸收特性[J].华中科技大学学报(自然科学版),2006,34(12):89-91. |
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| 作者姓名： | 江建军 付祺伟 邓联文 何华辉 |
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| 作者单位： | 华中科技大学,电子科学与技术系,湖北,武汉,430074 |
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| 基金项目： | 国家自然科学基金;湖北省杰出青年基金计划资助项目 |
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| 摘 要： | 采用快淬工艺和高能球磨处理技术制备了纳米晶FeSiAlCr片状颗粒材料．研究了高能球磨处理工艺对材料微结构、形貌和微波电磁特性的影响。结果表明高能球磨处理使球形粉粒形状扁平化并细化其晶粒，从而使FeSiAlCr颗粒材料的微波磁导率显著提高，介电常数被有效控制．对用该材料制作的涂层吸波性能进行了计算模拟，结果表明在4GHz附近微波段具有良好吸波性能．
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| 关 键 词： | 纳米晶 FeSiAlCr合金 高能球磨 复磁导率 吸波材料 |
| 文章编号： | 1671-4512（2006）12-0089-03 |
| 收稿时间： | 2005-12-24 |
| 修稿时间： | 2005年12月24 |
Microwave absorbing capability of nanocrystalline flakes of Fe85Si1Al6Cr8 |
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| Jiang Jianjun,Fu Qiwei,Deng Lianwen,He Huahui.Microwave absorbing capability of nanocrystalline flakes of Fe85Si1Al6Cr8[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,2006,34(12):89-91. |
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| Authors: | Jiang Jianjun Fu Qiwei Deng Lianwen He Huahui |
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| Abstract: | Nanocrystalline flakes of FeSiAlCr alloy were synthesized by rapidly quenched and high-energy ball milling process. The effects of process conditions on the microstructure, morphology and microwave electromagnetic characteristics of FeSiAlCr particles were investigated. Results show that the flaky morphology and nanocrystalline microstructure remarkably improved the microwave permeability and the permittivity was controlled effectively. The coating layer produced by the nanocrystalline FeSiAlCr flakes shows its good microwave absorbing ability at 4 GHz microwave range. |
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| Keywords: | nanocrystalline FeSiAlCr alloy high-energy ball milling complex permeability microwave absorber |
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