Electromagnetic wave absorption properties of mechanically mixed Nd2Fe14B/C microparticles

doi:10.1016/j.jallcom.2010.11.161

IMR OpenIR

	Electromagnetic wave absorption properties of mechanically mixed Nd2Fe14B/C microparticles
	Liu, Xianguo 1,2,3; Or, Siu Wing 1; Ho, S. L.1; Geng, Dianyu 2,3; Xie, Zhigao 2,3; Wang, Han 2,3; Zhang, Zhidong 2,3
通讯作者	Or, Siu Wing(eeswor@polyu.edu.hk)
	2011-02-10
发表期刊	JOURNAL OF ALLOYS AND COMPOUNDS
ISSN	0925-8388
卷号	509 期号:6 页码:2929-2932
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.
关键词	Carbon Complex permeability Complex permittivity Electromagnetic wave absorption Nd2Fe14B Reflection loss
资助者	National Basic Research Program of China ; Ministry of Science and Technology of China ; National Natural Science Foundation of China ; Hong Kong Polytechnic University
DOI	10.1016/j.jallcom.2010.11.161
收录类别	SCI
语种	英语
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
WOS类目	Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000287058100058
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：20[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/105480
专题	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. 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.