Electromagnetic shielding effectiveness of cement-matrix composite containing nickel fiber

Liujun Luo, Guoxuan Xiong, Shufang Zheng, Min Deng

科研成果: 书/报告/会议事项章节会议稿件同行评审

7 引用 (Scopus)

摘要

The cement-matrix composite with the function of building structure and electromagnetic interference shielding was prepared by filling nickel fiber into cement. The dispersion of nickel fiber in cement-matrix composite and the shielding effectiveness of composite containing various volume fractions of nickel fiber were investgated in this paper. The electromagnetic interference shielding effectiveness in the frequency range of 0.1 MHz to 1.5 GHz and the conductivity of composite were measured by coaxial cable method and two-probe method, respectively. The dispersion of nickel fiber in cement was characterized by EPMA. The results indicated that the dispersion property of nickel fiber by sodium hexametaphosphatecan was better than sodium carboxymethylcellulose. The optimum contents of nickel fiber in composite was 5 vol.%, the maximum shielding effectiveness was 45.7 dB in 140 MHz and the minimum shielding effectiveness was 36 dB in 1240 MHz. The shielding effectiveness of composite with 7 vol.% nickel fiber was lower than that with 5 vol.% nickel fiber due to the tendency of nickel fiber cling to each other.

源语言英语
主期刊名Testing and Evaluation of Inorganic Materials I
570-573
页数4
DOI
出版状态已出版 - 2011
活动1st Annual Meeting on Testing and Evaluation of Inorganic Materials - Nanchang, 中国
期限: 28 4月 201030 4月 2010

出版系列

姓名Advanced Materials Research
177
ISSN(印刷版)1022-6680

会议

会议1st Annual Meeting on Testing and Evaluation of Inorganic Materials
国家/地区中国
Nanchang
时期28/04/1030/04/10

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