Electromagnetic wave absorption properties of mechanically mixed Nd2Fe14B/C microparticles
文献类型：期刊论文
| 作者 | Liu, Xianguo1,2,3; Or, Siu Wing2; Ho, S. L.2; Geng, Dianyu1,3; Xie, Zhigao1,3; Wang, Han1,3; Zhang, Zhidong1,3 |
| 刊名 | JOURNAL OF ALLOYS AND COMPOUNDS
 |
| 出版日期 | 2011-02-10 |
| 卷号 | 509期号:6页码:2929-2932 |
| 关键词 | Carbon Complex permeability Complex permittivity Electromagnetic wave absorption Nd2Fe14B Reflection loss |
| ISSN号 | 0925-8388 |
| DOI | 10.1016/j.jallcom.2010.11.161 |
| 通讯作者 | Or, Siu Wing(eeswor@polyu.edu.hk) |
| 英文摘要 | Nd2Fe14B/C microparticles were prepared by a mechanical mixing technique using a weight ratio of 2:1. Paraffin-bonded Nd2Fe14B/C composites were fabricated using 40 wt% microparticles, and their electromagnetic wave absorption properties were studied and compared with those of the paraffin-bonded Nd2Fe14B composites in the 2-18 GHz frequency range and for 1-5 mm thickness. The Nd2Fe14B/C-paraffin composites exhibit dual dielectric resonance in complex relative permittivity (epsilon(r)) and essentially flat response in complex relative permeability (mu(r)) rather than showing an abrupt change in both epsilon(r) and mu(r) as in the Nd2Fe14B-paraffin composites. The results are ascribed to the increased electrical resistivity in the Nd2Fe14B/C-paraffin composites and the protection on the magnetic properties of the Nd2Fe14B microparticles at 2-18 GHz by the presence of the C phase. Large reflection loss (RL) exceeding -10 dB and an optimal RL of -13.2 dB are achieved in the Nd2Fe14B/C-paraffin composites from 9.6 to 18 GHz at a thickness of 1.4-2.6 mm and at 18 GHz at a thickness of 1.4 mm, respectively. (C) 2010 Elsevier B.V. All rights reserved. |
| 资助项目 | National Basic Research Program of China[2010CB934603] ; Ministry of Science and Technology of China ; National Natural Science Foundation of China[50831006] ; National Natural Science Foundation of China[50701045] ; Hong Kong Polytechnic University[G-YX3V] |
| WOS研究方向 | Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000287058100058 |
| 出版者 | ELSEVIER SCIENCE SA |
| 资助机构 | National Basic Research Program of China ; Ministry of Science and Technology of China ; National Natural Science Foundation of China ; Hong Kong Polytechnic University |
| 源URL | [http://ir.imr.ac.cn/handle/321006/105475]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Or, Siu Wing |
| 作者单位 | 1.Chinese Acad Sci, Int Ctr Mat Phys, Shenyang 110016, Peoples R China 2.Hong Kong Polytech Univ, Dept Elect Engn, Kowloon, Hong Kong, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Xianguo,Or, Siu Wing,Ho, S. L.,et al. Electromagnetic wave absorption properties of mechanically mixed Nd2Fe14B/C microparticles[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2011,509(6):2929-2932. |
| APA | Liu, Xianguo.,Or, Siu Wing.,Ho, S. L..,Geng, Dianyu.,Xie, Zhigao.,...&Zhang, Zhidong.(2011).Electromagnetic wave absorption properties of mechanically mixed Nd2Fe14B/C microparticles.JOURNAL OF ALLOYS AND COMPOUNDS,509(6),2929-2932. |
| MLA | Liu, Xianguo,et al."Electromagnetic wave absorption properties of mechanically mixed Nd2Fe14B/C microparticles".JOURNAL OF ALLOYS AND COMPOUNDS 509.6(2011):2929-2932. |
入库方式： OAI收割
来源：金属研究所
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