| Effect of Grinding Techniques on Absorbing Characteristics of Short Iron Fibers |
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| 引用本文： | 程海峰. Effect of Grinding Techniques on Absorbing Characteristics of Short Iron Fibers[J]. 武汉理工大学学报(材料科学英文版), 2007, 22(3): 400-403. DOI: 10.1007/s11595-006-3400-z |
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| 作者姓名： | 程海峰 |
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| 作者单位： | Key Lab |
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| 摘 要： | Microwave-absorbing properties of iron fibers can be adjusted by their aspect ratio. This paper presents several modification techniques for grinding long iron fibers to a suitable aspect ratio. The grinding instruments include pulsator, jet mill and muller. The aspect ratio distribution, microstructure, electromagnetic parameter and reflectivity of the samples were analyzed and discussed in detail. The results show that the fractions of 5〈aspect ratio〈40 for the three methods are 69.03%, 81.11% and 80.2% , respectively, that is, suitable short iron fibers can be obtained by the jet mill and muller. Furthermore, the short iron fibers milled by jet mill and muller have better absorbing propterties than those obtained by the pulsator under the same condition. Therefore, their microwave absorption properties can be improved by regulating the electromagnetic parameters with grinding.
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| 关 键 词： | 脆性铁纤维 电磁参数 微波吸收特性 研磨技术 |
| 收稿时间： | 2006-03-03 |
| 修稿时间： | 2006-03-03 |
Effect of grinding techniques on absorbing characteristics of short iron fibers |
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| Cheng Haifeng,Xie Wei,Chu Zengyong,Zhou Yongjiang,Tang Gengping,Chen Zhaohui. Effect of grinding techniques on absorbing characteristics of short iron fibers[J]. Journal of Wuhan University of Technology. Materials Science Edition, 2007, 22(3): 400-403. DOI: 10.1007/s11595-006-3400-z |
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| Authors: | Cheng Haifeng Xie Wei Chu Zengyong Zhou Yongjiang Tang Gengping Chen Zhaohui |
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| Affiliation: | (1) Key Lab of Advancd Ceramic Fibers & Composites, National University of Defense Technology, Changsha, 410073, China |
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| Abstract: | Microwave-absorbing properties of iron fibers can be adjusted by their aspect ratio. This paper presents several modification techniques for grinding long iron fibers to a suitable aspect ratio. The grinding instruments include pulsator, jet mill and muller. The aspect ratio distribution, microstructure, electromagnetic parameter and reflectivity of the samples were analyzed and discussed in detail. The results show that the fractions of 5
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| Keywords: | short iron fiber electromagnetic parameter microwave-absorbing property |
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