Dielectric properties of CB@TiO2/BaTiO3/epoxy composites

被引：0
|
作者：
Xin Wang
Zewei Li
机构：
[1] South China University of Technology,School of Materials Science and Engineering
来源：
Journal of Materials Science: Materials in Electronics | 2017年 / 28卷
关键词：
Dielectric Constant; Dielectric Property; Carbon Black; Dielectric Loss; BaTiO3;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
High-k (High permittivity) dielectric composites with low dielectric loss exhibit great potential applications in embedded capacitors and energy storage systems. In this study, CB@TiO2 core–shell particles and BaTiO3 powder were incorporated into the epoxy matrix to fabricate three-phase composites. Morphology of CB@TiO2 particles and dielectric properties of CB@TiO2/BaTiO3/epoxy composites were investigated. Results showed that the dielectric properties of the composites can be improved by the addition of CB@TiO2 particles. The dielectric constant of the composites with 30 vol% BaTiO3 and 20 vol% CB@TiO2 can reach 32.14 at the frequency of 1 kHz while the dielectric loss (tanδ) of the composites still keeps low (0.016 at 1 kHz). Additionally, the positive effect of surface coating on the application of conductive filler is indicated by the results.
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页码：6071 / 6078
页数：7
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