Magnetic and electromagnetic wave absorption properties of α-Fe(N) nanoparticles

被引：25

作者：

Li, D. ^{[1
,2
]}

Choi, C. J. ^{[3
]}

Han, Z. ^{[1
,2
]}

Liu, X. G. ^{[1
,2
]}

Hu, W. J. ^{[1
,2
]}

Li, J. ^{[1
,2
]}

Zhang, Z. D. ^{[1
,2
]}

机构：

[1] Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China

[2] Chinese Acad Sci, Int Ctr Mat Phys, Shenyang 110016, Peoples R China

[3] Korea Inst Mat Sci, Chang Won 641010, South Korea

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2009年 / 321卷 / 24期

基金：

中国国家自然科学基金;

关键词：

Nanoparticles; Magnetic properties; Electromagnetic wave absorption properties; VAPOR CONDENSATION PROCESS; MICROWAVE-ABSORPTION; THIN-FILMS; IRON; NANOCOMPOSITES; PARTICLES; RANGE;

D O I：

10.1016/j.jmmm.2009.08.006

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Magnetic and electromagnetic wave absorption properties of alpha-Fe(N) nanoparticles, synthesized by chemical vapor condensation and then kept in air for 5 years, have been studied. The magnetic properties of the alpha-Fe(N) nanoparticles were slightly decreased because of the degradation in air. A slight increase in the thickness of oxide shells results in an excellent dielectric loss. The alpha-Fe(N) nanoparticles exhibited outstanding reflection loss (RL < -20dB) in a 4.5-18 GHz for the absorber thicknesses of similar to 1-3.1 mm, and an optimal RL of -37.5 dB was obtained at 10.4 GHz with an absorber thickness of 1.6 mm. The broadest bandwidth (RL < -10 dB) from 13.3 to 17.4 GHz, covering almost the whole Ku-band, is obtained for a 1.2 mm layer. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：4081 / 4085

页数：5

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