Magnetic properties and microwave absorption properties of carbon fibers coated by Fe3O4 nanoparticles

被引：169

作者：

Qiang, Chengwen ^{[1
,2
]}

Xu, Jincheng ^{[1
,2
]}

Zhang, Zhongquan ^{[1
,2
]}

Tian, Liangliang ^{[1
,2
]}

Xiao, Songtao ^{[1
,2
]}

Liu, Ying ^{[1
,2
]}

Xu, Peng ^{[1
,2
]}

机构：

[1] Lanzhou Univ, Key Lab Magnetism & Magnet Mat MOE, Lanzhou 730000, Peoples R China

[2] Lanzhou Univ, Dept Mat Sci & Engn, Lanzhou 730000, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2010年 / 506卷 / 01期

关键词：

Fe3O4; nanoparticles; Carbon fiber; Scanning electron microscopy; Magnetic hysteresis loops; Microwave absorptive materials; Wet chemical method; ABSORBING PROPERTIES; AQUEOUS-SOLUTION; COMPOSITES; DEPOSITION; PARTICLES; FILMS; IRON; FE;

D O I：

10.1016/j.jallcom.2010.06.193

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Fe3O4 nanoparticles were plated on carbon fibers from nitrate and dimethylamine borane solution at 90 degrees C for 1 h. The structures and morphologies of the composite were characterized by X-ray diffraction (XRD) and scanning electron microscope (SEM). The thickness of the Fe3O4 films is about 1 mu m. The saturation magnetization of the Fe3O4/CFs composites reaches 39.5 emu/g and coercivity reaches 166.9 Oe. The reflectivity of Fe3O4 nanoparticles covered carbon fiber (2.90-5.12 mm in thickness) is less than -10 dB over the range of 3.52-10.01 GHz and -20 dB over the range of 5.49-7.75 GHz. The lowest reflectivity of the Fe3O4/CFs composites is -35 dB at 6.37 GHz for a layer of 4.41 mm in thickness. (c) 2010 Elsevier B.V. All rights reserved.

引用

页码：93 / 97

页数：5

共 24 条

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