Ni/Al2O3/epoxy high-k composites with ultralow nickel content towards high-performance dielectric applications
文献类型：期刊论文
| 作者 | Wang, Jing; Shi, Zhicheng; Mao, Fan; Wang, Xin; Zhang K(张坤) ; Shi, Jing; Shi, ZC; Shi, J (reprint author), Ocean Univ China, Inst Mat Sci & Engn, Qingdao 266100, Peoples R China.; Wang X; Wang J
|
| 刊名 | RSC ADVANCES
 |
| 出版日期 | 2016 |
| 卷号 | 6期号:49页码:43429-43435 |
| ISSN号 | 2046-2069 |
| DOI | 10.1039/c6ra06157e |
| 文献子类 | Article |
| 英文摘要 | Nickel/alumina/epoxy three-phase composites consisting of nickel particles dispersed in alumina/epoxy composite matrix were prepared using a facile wet impregnation process. The influences of in situ formed alumina particles (i-Al2O3) and epoxy on the dielectric properties of the composites were investigated in detail. For the composites with nickel contents far below the percolation threshold, the main electrical conduction mechanism is hopping conduction, and the main loss comes from polarizations. Therefore, the formation of alumina and epoxy result in higher permittivity but high loss due to the enhanced interfacial polarization. For the composites with nickel contents below but near the percolation threshold, the main electrical conduction mechanism is metal-like conduction and the main loss comes from eddy currents under high frequency electric field. Accordingly, the i-Al2O3 and filled epoxy between nickel particles could bring both high permittivity and low loss. This paper experimentally shows how the characteristics of the interface between different phases influence the dielectric performances of composites. And the impregnation process is an effective strategy to obtain percolative metal/ceramic/polymer three-phase composites with ultralow metal content, high permittivity and low loss. |
| 分类号 | 二类 |
| WOS关键词 | ELECTRICAL PERCOLATION-THRESHOLD ; NEGATIVE PERMITTIVITY BEHAVIOR ; ULTRAHIGH-ENERGY DENSITY ; POLYMER NANOCOMPOSITES ; SELECTIVE REDUCTION ; HYBRID FILMS ; CONSTANT ; STORAGE ; PERMEABILITY ; IMPROVEMENT |
| WOS研究方向 | Chemistry, Multidisciplinary |
| 语种 | 英语 |
| WOS记录号 | WOS:000375611100076 |
| 资助机构 | This work was supported by the National Natural Science Foundation of China (51402271, 51401028), Foundation for Outstanding Young Scientist in Shandong Province (BS2014CL003), Project Funded by China Postdoctoral Science Foundation (2014M550375, 2015T80748), Qingdao Science and Technology Plan (14-2-4-118-jch), Fundamental Research Funds for the Central Universities (201413001), Projects Funded by Shandong and Qingdao Postdoctoral Science Foundation. |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/71956]  |
| 专题 | 力学研究所_先进制造工艺力学重点实验室 |
| 通讯作者 | Shi, ZC; Shi, J (reprint author), Ocean Univ China, Inst Mat Sci & Engn, Qingdao 266100, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Wang, Jing,Shi, Zhicheng,Mao, Fan,et al. Ni/Al2O3/epoxy high-k composites with ultralow nickel content towards high-performance dielectric applications[J]. RSC ADVANCES,2016,6(49):43429-43435. |
| APA | Wang, Jing.,Shi, Zhicheng.,Mao, Fan.,Wang, Xin.,张坤.,...&Wang J.(2016).Ni/Al2O3/epoxy high-k composites with ultralow nickel content towards high-performance dielectric applications.RSC ADVANCES,6(49),43429-43435. |
| MLA | Wang, Jing,et al."Ni/Al2O3/epoxy high-k composites with ultralow nickel content towards high-performance dielectric applications".RSC ADVANCES 6.49(2016):43429-43435. |
入库方式： OAI收割
来源：力学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。