Full X-Ku band microwave absorption by Fe(Mn)/Mn7C3/C core/shell/shell structured nanocapsules
文献类型：期刊论文
| 作者 | Liu, Xianguo1,2,3; Or, Siu Wing1; Ho, S. L.1; Cheung, Chi Chuen1; Leung, Chung Ming1; Han, Zheng2,3; Geng, Dianyu2,3; Zhang, Zhidong2,3 |
| 刊名 | JOURNAL OF ALLOYS AND COMPOUNDS
 |
| 出版日期 | 2011-09-15 |
| 卷号 | 509期号:37页码:9071-9075 |
| 关键词 | Carbon Complex permeability Complex permittivity Electromagnetic wave absorption Nanocapsules Reflection loss |
| ISSN号 | 0925-8388 |
| DOI | 10.1016/j.jallcom.2011.06.031 |
| 通讯作者 | Or, Siu Wing(eeswor@polyu.edu.hk) |
| 英文摘要 | New type of Fe(Mn)/Mn7C3/graphite nanocapsules was prepared by a modified arc discharge technique in ethanol vapor, with Fe(Mn) solid solution nanoparticles as the core, Mn7C3 as the inner shell, and graphite as the outer shell. The Cole-Cole semicircle approach was adopted to explain the ternary dielectric resonance, due to a cooperative consequence of the core/shell/shell interfaces and the dielectric Mn7C3 and C shells. A remarkable increase in the anisotropy energy led to a shift in the natural resonance frequency to 6.6 GHz. Dielectric losses come from the ternary dielectric resonance while magnetic losses were from the magnetic natural resonance. An optimal reflection loss (RL) of -142.1 dB was observed at 12 GHz for 5.0 mm thickness layer. RL exceeding -10 dB was obtained at 6.6-18 GHz for 1.4 mm thickness, covering the whole X band (8-12 GHz), Ku band (12-18 GHz), and some of C band (6.6-8.0 GHz). RL exceeding -20 dB was found at 6-10.6 GHz for 2.2 mm thickness. (C) 2011 Elsevier B. V. All rights reserved. |
| 资助项目 | Hong Kong Polytechnic University[G-YX3 V] ; Ministry of Science and Technology of China[2010CB934603] |
| WOS研究方向 | Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000293826800019 |
| 出版者 | ELSEVIER SCIENCE SA |
| 资助机构 | Hong Kong Polytechnic University ; Ministry of Science and Technology of China |
| 源URL | [http://ir.imr.ac.cn/handle/321006/103708]  |
| 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.Hong Kong Polytech Univ, Dept Elect Engn, Kowloon, Hong Kong, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 3.Chinese Acad Sci, Int Ctr Mat Phys, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Xianguo,Or, Siu Wing,Ho, S. L.,et al. Full X-Ku band microwave absorption by Fe(Mn)/Mn7C3/C core/shell/shell structured nanocapsules[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2011,509(37):9071-9075. |
| APA | Liu, Xianguo.,Or, Siu Wing.,Ho, S. L..,Cheung, Chi Chuen.,Leung, Chung Ming.,...&Zhang, Zhidong.(2011).Full X-Ku band microwave absorption by Fe(Mn)/Mn7C3/C core/shell/shell structured nanocapsules.JOURNAL OF ALLOYS AND COMPOUNDS,509(37),9071-9075. |
| MLA | Liu, Xianguo,et al."Full X-Ku band microwave absorption by Fe(Mn)/Mn7C3/C core/shell/shell structured nanocapsules".JOURNAL OF ALLOYS AND COMPOUNDS 509.37(2011):9071-9075. |
入库方式： OAI收割
来源：金属研究所
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