Electromagnetic interference shielding and dielectric properties of SiCf/SiC composites containing pyrolytic carbon interphase

被引：95
|
作者：
Ding, Donghai [1 ]
Shi, Yimin [2 ]
Wu, Zhihong [1 ]
Zhou, Wancheng [3 ]
Luo, Fa [3 ]
Chen, Jin [1 ]
机构：
[1] Xian Univ Architecture & Technol, Coll Mat & Mineral Resources, Xian 710055, Shaanxi, Peoples R China
[2] Xian Univ Architecture & Technol, Coll Sci, Xian 710055, Shaanxi, Peoples R China
[3] Northwestern Polytech Univ, State Key Lab Solidificat Proc, Xian 710072, Peoples R China
来源：
CARBON | 2013年 / 60卷
关键词：
CERAMICS;
D O I：
10.1016/j.carbon.2013.03.061
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：
The SiCf/SiC composites containing various thickness of pyrolytic carbon (PyC) interphase were prepared and their properties were investigated for electromagnetic interference (EMI) shielding applications in the frequency of 8.2-12.4 GHz. The composites containing 310 nm thickness (3.3 vol%) PyC interphase show an about 25 dB shielding effectiveness in the whole frequency band. Interestingly, the contribution of reflection to the EMI shielding effectiveness increases and the contribution of absorption decreases as the PyC interphase thickness increases. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码：552 / 555
页数：4
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