Electrical conductivity, dielectric and microwave absorption properties Of graphene nanosheets/magnesia composites

doi:10.1016/j.jeurceramsoc.2017.11.052

	Electrical conductivity, dielectric and microwave absorption properties Of graphene nanosheets/magnesia composites
	Chen, Cheng 1; Pan, Limei 1; Jiang, Senchuan 1; Yin, Shuang 1; Li, Xiaoyun 1; Zhang, Jingxian 2; Feng, Yongbao 1; Yang, Jian 1
刊名	JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
	2018
卷号	38 期号:4 页码:1639
关键词	GNSs/MgO composite Electrical conductivity Dielectric property Microwave absorption property
ISSN号	0955-2219
DOI	10.1016/j.jeurceramsoc.2017.11.052
英文摘要	Herein, a novel microwave absorbing material with Graphene nanosheets (GNSs) as microwave absorbing filler and magnesia (MgO) as matrix were prepared by hot-pressing sintering. The composites were highly dense with a homogeneous distribution of GNSs. Electrical conductivity, dielectric and microwave absorption properties in X-band were investigated. The results revealed that the electrical conductivity of the GNSs/MgO composites showed a typical percolation-type behavior with a percolation threshold of 3.34 vol%. With GNSs content increased to 3 vol%, the real permittivity, imaginary permittivity and dielectric loss tangent of the composites increased from similar to 9, similar to 0 and similar to 0 to 26-43, 23-28 and 0.55-0.96, respectively. By adjusting the GNSs content, thickness and frequency, the 2.5 vol% GNSs/MgO composite shows the minimum reflection loss of -36.5 dB at 10.7 GHz and the reflection loss below -10 dB (90% absorption) ranges from 9.4 to 11.4 GHz with 1.5 mm thickness, exhibiting excellent microwave absorption properties.
学科主题	Materials Science, Ceramics
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000424716700080
资助机构	This work was supported by the Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD), Qing Lan Project, the Program for Changjiang Scholars and Innovative Research Team in University (PCSIRT), IRT1146 and IRT15R35, the Postgraduate Research & Practice Innovation Program of Jiangsu Province (KYCX17_0976). ; This work was supported by the Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD), Qing Lan Project, the Program for Changjiang Scholars and Innovative Research Team in University (PCSIRT), IRT1146 and IRT15R35, the Postgraduate Research & Practice Innovation Program of Jiangsu Province (KYCX17_0976).
内容类型	期刊论文
源URL	[http://ir.sic.ac.cn/handle/331005/25066]
专题	中国科学院上海硅酸盐研究所
作者单位	1.Jiangsu Collaborat Innovat Ctr Adv Inorgan Funct, Nanjing, Jiangsu, Peoples R China 2.Nanjing Tech Univ, Coll Mat Sci & Engn, Nanjing 210009, Jiangsu, Peoples R China 3.Chinese Acad Sci, Shanghai Inst Ceram, Shanghai 200050, Peoples R China
推荐引用方式 GB/T 7714	Chen, Cheng,Pan, Limei,Jiang, Senchuan,et al. Electrical conductivity, dielectric and microwave absorption properties Of graphene nanosheets/magnesia composites[J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,2018,38(4):1639, 1646.
APA	Chen, Cheng.,Pan, Limei.,Jiang, Senchuan.,Yin, Shuang.,Li, Xiaoyun.,...&Yang, Jian.(2018).Electrical conductivity, dielectric and microwave absorption properties Of graphene nanosheets/magnesia composites.JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,38(4),1639.
MLA	Chen, Cheng,et al."Electrical conductivity, dielectric and microwave absorption properties Of graphene nanosheets/magnesia composites".JOURNAL OF THE EUROPEAN CERAMIC SOCIETY 38.4(2018):1639.