Ferromagnetic and microwave absorption properties of copper oxide-carbon fiber composites

被引：53

作者：

Zeng, Jun ^{[1
,2
,3
]}

Xu, Jincheng ^{[2
,3
]}

Tao, Peng ^{[2
,3
]}

Hua, Wei ^{[2
,3
]}

机构：

[1] Xi An Engn Coll, Xian 710086, Shanxi Province, Peoples R China

[2] Lanzhou Univ, Minist Educ, Key Lab Magnetism & Magnet Mat, Lanzhou 730000, Peoples R China

[3] Lanzhou Univ, Inst Mat Sci & Engn, Lanzhou 730000, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2009年 / 487卷 / 1-2期

关键词：

Nanostructures; Oxidation; Scanning and transmission electron microscopy; Magnetic measurement; Microwave absorbing materials; MAGNETIC-PROPERTIES; THERMAL-OXIDATION; CUO NANOWIRES; CUPRIC OXIDE; GROWTH; NANOPARTICLES; ABSORBERS; NANORODS; ROUTE;

D O I：

10.1016/j.jallcom.2009.07.112

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：

This paper reports that copper oxide-carbon fiber (CuO/CF) composites are synthesized by annealing copper/carbon fibers in air. Interestingly, CuO/CF shows ferromagnetic at room temperature, and the strongest RL of CuO/CF composite is -29.6 dB at 7.8 GHz, and the corresponding thickness is only 1.8 mm. The strong absorption of CuO/CF composites (1.0-4.0 mm in thickness) is less than -10 dB (>90%) over the range of 2.7-15.9GHz and -20 dB (>99%) over the range of 3.0-9.4GHz, respectively. The CuO/CF composites are believed to be ideal for making lightweight, strong absorption and wide-frequency microwave absorbing materials. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：304 / 308

页数：5

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