Temperature dependence of the electromagnetic properties of graphene nanosheet reinforced alumina ceramics in the X-band

被引：188
作者：
Qing Yuchang [1 ]
Wen Qinlong [1 ]
Luo Fa [1 ]
Zhou Wancheng [1 ]
机构：
[1] Northwestern Polytech Univ, State Key Lab Solidificat Proc, Sch Mat Sci & Engn, Xian 710072, Peoples R China
来源：
JOURNAL OF MATERIALS CHEMISTRY C | 2016年 / 4卷 / 22期
基金：
中国国家自然科学基金;
关键词：
MICROWAVE-ABSORPTION PROPERTIES; NEGATIVE PERMITTIVITY BEHAVIOR; ENHANCED DIELECTRIC-PROPERTIES; FLAKE CARBONYL IRON; HIGHLY EFFICIENT; ELECTRICAL-PROPERTIES; WAVE ABSORPTION; COMPOSITES; NANOCOMPOSITES; PERFORMANCE;
D O I：
10.1039/c6tc01163b
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Graphene nanosheet (GN)/Al2O3 ceramics were prepared by hot press sintering with a significant improvement in both mechanical and electromagnetic properties. The excellent mechanical properties and electrical conductivity of the GN/Al2O3 ceramics contributed to the outstanding advantage of GNs as the reinforcing phase. The effects of GN content and temperature on complex permittivity, microwave absorption and electromagnetic interference (EMI) shielding performance of such ceramics have been studied in the frequency range of 8.2-12.4 GHz (X-band) and temperature range from 25 to 400 degrees C. Negative permittivity of the GN/Al2O3 ceramics with 2.0 vol% GNs appears throughout the whole X-band at 400 degrees C, and the mechanism was also investigated. The GN/Al2O3 ceramics show high mechanical properties, tunable electromagnetic properties, good microwave absorption and EMI shielding performance demonstrating their great potential to be applied in microwave applications.
引用
收藏
页码：4853 / 4862
页数：10
相关论文
共 60 条
[1]   Ultrathin graphene: electrical properties and highly efficient electromagnetic interference shielding [J].
Cao, Mao-Sheng ;
Wang, Xi-Xi ;
Cao, Wen-Qiang ;
Yuan, Jie .
JOURNAL OF MATERIALS CHEMISTRY C, 2015, 3 (26) :6589-6599
[2]   The effects of temperature and frequency on the dielectric properties, electromagnetic interference shielding and microwave-absorption of short carbon fiber/silica composites [J].
Cao, Mao-Sheng ;
Song, Wei-Li ;
Hou, Zhi-Ling ;
Wen, Bo ;
Yuan, Jie .
CARBON, 2010, 48 (03) :788-796
[3]   Matching design and mismatching analysis towards radar absorbing coatings based on conducting plate [J].
Cao, MS ;
Qin, RR ;
Qiu, CJ ;
Zhu, J .
MATERIALS & DESIGN, 2003, 24 (05) :391-396
[4]   Temperature dependent microwave absorption of ultrathin graphene composites [J].
Cao, Wen-Qiang ;
Wang, Xi-Xi ;
Yuan, Jie ;
Wang, Wen-Zhong ;
Cao, Mao-Sheng .
JOURNAL OF MATERIALS CHEMISTRY C, 2015, 3 (38) :10017-10022
[5]   Graphene for tough and electroconductive alumina ceramics [J].
Centeno, A. ;
Rocha, V. G. ;
Alonso, B. ;
Fernandez, A. ;
Gutierrez-Gonzalez, C. F. ;
Torrecillas, R. ;
Zurutuza, A. .
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2013, 33 (15-16) :3201-3210
[6]   Controllable fabrication of mono-dispersed RGO-hematite nanocomposites and their enhanced wave absorption properties [J].
Chen, Dezhi ;
Wang, Guang-Sheng ;
He, Shuai ;
Liu, Jia ;
Guo, Lin ;
Cao, Mao-Sheng .
JOURNAL OF MATERIALS CHEMISTRY A, 2013, 1 (19) :5996-6003
[7]   Lightweight and Flexible Graphene Foam Composites for High-Performance Electromagnetic Interference Shielding [J].
Chen, Zongping ;
Xu, Chuan ;
Ma, Chaoqun ;
Ren, Wencai ;
Cheng, Hui-Ming .
ADVANCED MATERIALS, 2013, 25 (09) :1296-1300
[8]   Ceramic matrix composites containing carbon nanotubes [J].
Cho, Johann ;
Boccaccini, Aldo R. ;
Shaffer, Milo S. P. .
JOURNAL OF MATERIALS SCIENCE, 2009, 44 (08) :1934-1951
[9]   Theoretical investigation on the possibility of preparing left-handed materials in metallic magnetic granular composites [J].
Chui, ST ;
Hu, LB .
PHYSICAL REVIEW B, 2002, 65 (14) :1-6
[10]   Low-Loss, High-Permittivity Composites Made from Graphene Nanoribbons [J].
Dimiev, Ayrat ;
Lu, Wei ;
Zeller, Kyle ;
Crowgey, Benjamin ;
Kempel, Leo C. ;
Tour, James M. .
ACS APPLIED MATERIALS & INTERFACES, 2011, 3 (12) :4657-4661
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