Electromagnetic interference shielding using continuous carbon-fiber carbon-matrix and polymer-matrix composites

被引：340

作者：

Luo, XC ^{[1
]}

Chung, DDL ^{[1
]}

机构：

[1] SUNY Buffalo, Composite Mat Res Lab, Buffalo, NY 14260 USA

来源：

COMPOSITES PART B-ENGINEERING | 1999年 / 30卷 / 03期

关键词：

carbon-fiber; carbon-carbon composites (CCCs); polymer-matrix composites (PMCs); electromagnetic interference shielding;

D O I：

10.1016/S1359-8368(98)00065-1

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A carbon-matrix composite with continuous carbon-fibers was found to be an excellent electromagnetic interference (EMI) shielding material with shielding effectiveness 124 dB, low surface impedance and high reflectivity in the frequency range from 0.3 MHz to 1.5 GHz. The shielding effectiveness of polymer-matrix composites with continuous carbon-fibers was less and that of polymer-matrix composites with discontinuous fillers was even less. The addition of 2.9 vol.% discontinuous 0.1 mu m diameter carbon-filaments between the layers of conventional 7 mu m diameter continuous carbon-fibers in a composite degraded the shielding effectiveness. The dominant mechanism of EMI shielding for both carbon-matrix and polymer-matrix continuous carbon-fiber composites is reflection. (C) 1999 Elsevier Science Ltd. All rights reserved.

引用

页码：227 / 231

页数：5

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