Microwave sintering carbon nanotube/Ni0.5Zn0.5Fe2O4 composites and their electromagnetic performance
Zhou, XB; Shen, L; Li, L; Zhou, SH; Huang, TM; Hu, CF; Pan, WM; Jing, XH; Sun, J; Gao, L; Huang, Q;黄彤明; Pan WM(潘卫民)
刊名JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
2013
卷号33期号:11页码:2119-2126
关键词Ferrite Carbon nanotube Electromagnetic property Microwave sintering
学科分类Materials Science
DOI10.1016/j.jeurceramsoc.2013.03.017
英文摘要Carbon nanotube (CNT)-Ni0.5Zn0.5Fe2O4 powders were prepared by in situ chemical precipitation and hydrothermal processing, and further sintered by microwave sintering technology. The results show that CNTs acted as 'heating source' and promoted the consolidation of composites during the microwave sintering process. However, too much CNTs (such as 5 wt%) led to phase decomposition and reduction of ferrite materials because of the ultra-high localized temperature building up in the interface of CNTs and ferrite grains. The electrical conductivity of composites increased by more than seven orders of magnitude when compared to that of pure Ni0.5Zn0.5Fe2O4, and remained a high value at the temperature of 70K (for example, 1 wt% CNT/Ni0.5Zn0.5Fe2O4 sample kept conductivity of 0.1 S/m). The saturation magnetization was strongly dependent on the mass percentage of CNTs. With the increase in CNT content, both the real and the imaginary permittivity were increased in the frequency region 0.6-5 GHz (L and S bands). According to the measured results of sr and Pr, the frequency-dependent reflectance loss (RL) of CNT/Ni0.5Zn0.5Fe2O4 composite ceramics with different CNT content was evaluated. The CNT-doped ferrite ceramics discussed herein is very promising to be used in an on-beam-line high-order mode (HOM) load in particle accelerators based on superconducting RE due to their excellent low-temperature characteristics. (C) 2013 Elsevier Ltd. All rights reserved.
收录类别SCI
WOS记录号WOS:000319539500008
引用统计
被引频次:22[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/224190
专题中国科学院高能物理研究所_加速器中心_期刊论文
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GB/T 7714
Zhou, XB,Shen, L,Li, L,et al. Microwave sintering carbon nanotube/Ni0.5Zn0.5Fe2O4 composites and their electromagnetic performance[J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,2013,33(11):2119-2126.
APA Zhou, XB.,Shen, L.,Li, L.,Zhou, SH.,Huang, TM.,...&潘卫民.(2013).Microwave sintering carbon nanotube/Ni0.5Zn0.5Fe2O4 composites and their electromagnetic performance.JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,33(11),2119-2126.
MLA Zhou, XB,et al."Microwave sintering carbon nanotube/Ni0.5Zn0.5Fe2O4 composites and their electromagnetic performance".JOURNAL OF THE EUROPEAN CERAMIC SOCIETY 33.11(2013):2119-2126.
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