Enhanced electromagnetic interference shielding properties of silicon carbide composites with aligned graphene nanoplatelets

被引:30
作者
Chen, Chen [1 ]
Tan, Yongqiang [1 ]
Han, Xiaochun [1 ]
Luo, Heng [1 ]
Zeng, Sifan [1 ]
Peng, Shuming [1 ]
Zhang, Haibin [1 ]
机构
[1] China Acad Engn Phys, Inst Nucl Phys & Chem, Innovat Res Team Adv Ceram, Mianyang 621900, Peoples R China
基金
中国国家自然科学基金;
关键词
Graphene nanoplatelets; Texture distribution; Capacitors; Multiple reflections; Electrical conductivity; DIELECTRIC-PROPERTIES; SICF/SIC COMPOSITES; ABSORPTION; CERAMICS;
D O I
10.1016/j.jeurceramsoc.2018.07.050
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Graphene nanoplatelets (GNPs) were successfully incorporated into silicon carbide (SiC) ceramic matrix in a self-aligned pattern and the obtained materials displayed extremely high value of shielding effectiveness (SE) over 40 dB by adding only 3 wt.% GNPs, which was the highest SE value in all SiC-based composites reported in literature up to now. It was found that the texture distribution of GNPs was crucial to achieve the high electromagnetic interference shielding performance of SiC/GNPs composites, which can contribute to the significant improvement of both absorption and reflection. The improved absorption originated from the formation of network of mini capacitors comprised of self-aligned GNPs and multiple reflections. The improvement of reflection was attributed to the high electrical conductivity of the composite due to the introduction of GNPs. These results indicate that SiC/GNPs composites can be used as high-performance ceramic-based EMI shielding materials.
引用
收藏
页码:5615 / 5619
页数:5
相关论文
共 23 条
[1]   Electromagnetic interference shielding mechanisms of CNT/polymer composites [J].
Al-Saleh, Mohammed H. ;
Sundararaj, Uttandaraman .
CARBON, 2009, 47 (07) :1738-1746
[2]   Mechanical and electromagnetic shielding properties of carbon fiber reinforced silicon carbide matrix composites [J].
Chen, Lingqi ;
Yin, Xiaowei ;
Fan, Xiaomeng ;
Chen, Meng ;
Ma, Xiaokang ;
Cheng, Laifei ;
Zhang, Litong .
CARBON, 2015, 95 :10-19
[3]   Electromagnetic interference shielding properties of silicon nitride ceramics reinforced by in situ grown carbon nanotubes [J].
Chen, Meng ;
Yin, Xiaowei ;
Li, Mian ;
Chen, Lingqi ;
Cheng, Laifei ;
Zhang, Litong .
CERAMICS INTERNATIONAL, 2015, 41 (02) :2467-2475
[4]   Electromagnetic interference shielding and dielectric properties of SiCf/SiC composites containing pyrolytic carbon interphase [J].
Ding, Donghai ;
Shi, Yimin ;
Wu, Zhihong ;
Zhou, Wancheng ;
Luo, Fa ;
Chen, Jin .
CARBON, 2013, 60 :552-555
[5]   Dense graphene nanoplatelet/yttria tetragonal zirconia composites: Processing, hardness and electrical conductivity [J].
Gallardo-Lopez, Angela ;
Marquez-Abril, Ivan ;
Morales-Rodriguez, Ana ;
Munoz, Antonio ;
Poyato, Rosalia .
CERAMICS INTERNATIONAL, 2017, 43 (15) :11743-11752
[6]   C/C-SiC composites for space applications and advanced friction systems [J].
Krenkel, W ;
Berndt, F .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2005, 412 (1-2) :177-181
[7]   Improved dielectric and electromagnetic interference shielding properties of ferrocene-modified polycarbosilane derived SiC/C composite ceramics [J].
Li, Quan ;
Yin, Xiaowei ;
Duan, Wenyan ;
Kong, Luo ;
Liu, Xingmin ;
Cheng, Laifei ;
Zhang, Litong .
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2014, 34 (10) :2187-2201
[8]   Effect of chemical vapor infiltration of SiC on the mechanical and electromagnetic properties of Si3N4-SiC ceramic [J].
Li, Xiangming ;
Zhang, Litong ;
Yin, Xiaowei ;
Feng, Liyun ;
Li, Quan .
SCRIPTA MATERIALIA, 2010, 63 (06) :657-660
[9]   Mechanical and dielectric properties of porous Si3N4-SiC(BN) ceramic [J].
Li, Xiangming ;
Zhang, Litong ;
Yin, Xiaowei ;
Yu, Zhaoju .
JOURNAL OF ALLOYS AND COMPOUNDS, 2010, 490 (1-2) :L40-L43
[10]   Improvement of the electromagnetic shielding properties of C/SiC composites by electrophoretic deposition of carbon nanotube on carbon fibers [J].
Mei, Hui ;
Han, Daoyang ;
Xiao, Shanshan ;
Ji, Tianming ;
Tang, Jian ;
Cheng, Laifei .
CARBON, 2016, 109 :149-153