Highly-efficient electromagnetic interference shielding and microwave dielectric behavior of a (Bi2O3 + B2O3)-doped MWCNT/BaTiO3 ceramic nanocomposite

被引：21

作者：

Tohidifar, Mohammad Reza ^{[1
]}

机构：

[1] Univ Zanjan, Fac Engn, Dept Mat Sci & Engn, POB 45371-38791, Zanjan, Iran

来源：

CERAMICS INTERNATIONAL | 2018年 / 44卷 / 12期

关键词：

Sintering; Electron microscopy; Dielectric properties; BaTiO3 and titanates; WALL CARBON NANOTUBES; ELECTRICAL-CONDUCTIVITY; HYDROTHERMAL SYNTHESIS; SINTERING BEHAVIOR; SILICA COMPOSITES; NANOCOMPOSITES; BATIO3; PERMITTIVITY; ABSORPTION; CERAMICS;

D O I：

10.1016/j.ceramint.2018.04.197

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：

Microwave dielectric properties along with electromagnetic interference shielding effectiveness (EMI SE) of a multi-walled carbon nanotube (MWCNT)/barium titanate (BaTiO3) nanocomposite are investigated in this paper. Appropriate amount of sintering additive (Bi2O3 + B2O3) was doped into some nanocomposites to reduce the sintering temperatures. The dielectric properties of the nanocomposites with various MWCNT and sintering additive contents were evaluated at different microwave frequency ranges. It was found that the incorporation of optimized amount of (Bi2O3 + B2O3) can give rise to significantly good dielectric properties. Results also indicated that incorporation of 6 wt% (Bi2O3 + B2O3) into 1.5 mm-thick nanocomposite containing 8 wt% MWCNT led to an EMI SE greater than 28 dB, suggesting this novel nanocomposite as a promising candidate for microwave absorption and electromagnetic interference applications.

引用

页码：13613 / 13622

页数：10

共 46 条

[41] BaTiO3-carbon nanotube/polyvinylidene fluoride three-phase composites with high dielectric constant and low dielectric loss [J].

Yao, Sheng-Hong ;

Dang, Zhi-Min ;

Jiang, Mei-Juan ;

Bai, JinBo .

APPLIED PHYSICS LETTERS, 2008, 93 (18)

[42] Electromagnetic interference shielding effectiveness of nickel-plated MWCNTs/high-density polyethylene composites [J].

Yim, Yoon-Ji ;

Rhee, Kyong Yop ;

Park, Soo-Jin .

COMPOSITES PART B-ENGINEERING, 2016, 98 :120-125

[43] A particular interfacial strategy in PVDF/OBC/MWCNT nanocomposites for high dielectric performance and electromagnetic interference shielding [J].

Zha, Xiang-Jun ;

Pu, Jun-Hong ;

Ma, Li-Feng ;

Li, Ting ;

Bao, Rui-Ying ;

Bai, Lu ;

Liu, Zheng-Ying ;

Yang, Ming-Bo ;

Yang, Wei .

COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING, 2018, 105 :118-125

[44] Single-wall carbon nanotubes as attractive toughening agents in alumina-based nanocomposites [J].

Zhan, GD ;

Kuntz, JD ;

Wan, JL ;

Mukherjee, AK .

NATURE MATERIALS, 2003, 2 (01) :38-42

[45] Fabrication of Monodispersed 5-nm BaTiO3 Nanocrystals with Narrow Size Distribution via One-Step Solvothermal Route [J].

Zhang, Hui ;

Wang, Xiaohui ;

Tian, Zhibin ;

Zhong, Caifu ;

Zhang, Yichi ;

Sun, Changku ;

Li, Longtu .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2011, 94 (10) :3220-3222

[46] Gadolinium-doped strontium titanate for high-efficiency electromagnetic interference shielding [J].

Zhou, Yingying ;

Wen, Qinlong ;

Ren, Zhaowen ;

Xie, Hui ;

Tao, Shiping ;

Zhou, Wancheng .

JOURNAL OF ALLOYS AND COMPOUNDS, 2018, 733 :33-39

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