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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Qi Zheng Pengli Zhu Yanmin Wu Rong Sun Chingping Wong |
| Copyright Year | 2012 |
| Description | Author affiliation: Shenzhen Institutes of Advanced Technology, Chinese Academy of Science, 518055, China (Qi Zheng; Pengli Zhu; Yanmin Wu; Rong Sun) || Department of Electronics Engineering, The Chinese University of Hong Kong, China (Chingping Wong) |
| Abstract | In this article, Ni particles with different morphologies including spherical Ni and fibrous Ni particles had been synthesized by co-precipitation and e polyol methods, respectively‥ As such, a three-phase percolative composites containing Ni as the conductive phase with different morphologies, BaTiO3 as the ceramic phase embedded into poly(vinylidene fluoride) (PVDF) matrix was prepared through a hot-molding technique by pressing these materials at about 190 °C under a pressure of 3 Mpa for 15 min. The effect of filler Ni morphology and content on the dielectric response of Ni-BaTiO3-PVDF composites had been investigated in detail by the characterization of Agilent E4991 for high frequency from 1 MHz to 1 GHz. The fibrous Ni-BaTiO3-PVDF composite material processes a lower percolation threshold at about 15% than 28% of the spherical system. And at the same time, other dielectric properties such as dielectric constant k enhanced through the spherical Ni conductive filler substituted by the fibrous Ni particles. This work could provide a new process to achieve a material system with low percolation threshold which is beneficial to obtain both high dielectric constant and good mechanical performance polymer high k composites. |
| Starting Page | 267 |
| Ending Page | 270 |
| File Size | 859446 |
| Page Count | 4 |
| File Format | |
| ISBN | 9781467316354 |
| ISSN | 21505934 |
| e-ISBN | 9781467316385 |
| e-ISBN | 9781467316378 |
| DOI | 10.1109/IMPACT.2012.6420221 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2012-10-24 |
| Publisher Place | Taiwan |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Dielectric constant Composite materials Morphology Nickel Permittivity |
| Content Type | Text |
| Resource Type | Article |
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