Barium ferrite and graphite integrated with polyaniline as effective shield against electromagnetic interference

被引：66
作者：
Gairola, Preeti [1 ]
Gairola, S. P. [1 ]
Kumar, Vijay [2 ]
Singh, Kuldeep [3 ]
Dhawan, S. K. [4 ]
机构：
[1] Uttaranchal Univ, Dehra Dun, Uttar Pradesh, India
[2] Chandigarh Univ, Dept Appl Phys, Mohali, Punjab, India
[3] Cent Electrochem Res Inst Karaikudi, Karaikkudi, Tamil Nadu, India
[4] Natl Phys Lab CSIR, KS Krishnan Marg, New Delhi, India
来源：
SYNTHETIC METALS | 2016年 / 221卷
关键词：
Barium ferrite; Expanded graphite (EG); Polyaniline; EMI shielding; ENHANCED MICROWAVE-ABSORPTION; ABSORBING MATERIALS; COMPOSITES; 3,4-ETHYLENEDIOXYTHIOPHENE; BEHAVIOR; BAND;
D O I：
10.1016/j.synthmet.2016.09.023
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Barium ferrite was incorporated into polyaniline matrix along with expanded graphite (EG) in order that the resultant conductive composite can be used for electromagnetic shielding. The different properties like complex permittivity (epsilon"), permeability (mu"), and effectiveness of shielding have been studied by vector network analyzer using theoretical enumeration given in Weir and Nicholson-Ross algorithms. The microwave absorption characteristic of the composites have been calculated in the X-band (8.2-12.4 GHz) frequency range which shows a shielding effectiveness up-to 37.1 dB, which strongly depends on dielectric loss. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码：326 / 331
页数：6
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