Evaluation of the microwave absorption property of flake graphite

被引：133

作者：

Fan, Yuzun ^{[1
,2
]}

Yang, Haibin ^{[1
]}

Li, Minghui ^{[1
]}

Zou, Guangtian ^{[1
]}

机构：

[1] Jilin Univ, State Key Lab Superhard Mat, Changchun 130012, Peoples R China

[2] Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China

来源：

MATERIALS CHEMISTRY AND PHYSICS | 2009年 / 115卷 / 2-3期

关键词：

Composite materials; Coating; PERMEABILITY;

D O I：

10.1016/j.matchemphys.2009.02.010

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The effects of mechanical milling time, ultrasonic vibration time and the weight ratio of flake graphite in the absorber on the absorption property over the frequency range of 8-18 GHz were examined by the Radar Absorbing Material reflectivity far field Radar Cross Section method. A possible absorption mechanism was proposed for the enhancement of absorption ability with increasing milling time. Flake graphite exhibits good absorption performance in the high frequency. Specifically, the absorption peak value of flake graphite with milling time of 12 h is about 15 dB stronger than that of the unground flake graphite. The optimum weight ratio is 25% and the absorption ability of flake graphite (25%) from 14.4 to 18 GHz is >12 dB, which is the best of all the samples. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：696 / 698

页数：3

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