Time-domain characterisation of epoxy-based barium titanate nanocomposites

IF 3.8 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC IET Nanodielectrics Pub Date : 2021-02-12 DOI:10.1049/nde2.12002
Romana Zafar, Nandini Gupta
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引用次数: 3

Abstract

In this article, the dielectric response of epoxy resin and epoxy-based barium titanate (BaTiO3) nanocomposites is characterised in the time-domain, based on polarisation and depolarisation current measurements. The aim of this article is to understand the dominant polarisation mechanisms in neat epoxy and its nanocomposites and validate the findings in frequency-domain spectroscopy (FDS). The effect of various parameters on the dielectric response of the material is investigated to this end, namely, polarisation–depolarisation time, electrode material, electric field and specimen thickness. The effect of pre-processing the nano-particles before use is also studied. In order to validate the findings of FDS, time-domain spectroscopy (TDS) of neat epoxy and its nanocomposites is performed.

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环氧基钛酸钡纳米复合材料的时域表征
在本文中,基于极化和去极化电流测量,在时域上表征了环氧树脂和环氧基钛酸钡(batio3)纳米复合材料的介电响应。本文的目的是了解纯环氧树脂及其纳米复合材料的主要极化机制,并在频域光谱(FDS)中验证这些发现。为此,研究了各种参数对材料介电响应的影响,即极化-退极化时间、电极材料、电场和试样厚度。研究了使用前对纳米颗粒进行预处理的效果。为了验证FDS的结果,对纯环氧树脂及其纳米复合材料进行了时域光谱(TDS)分析。
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来源期刊
IET Nanodielectrics
IET Nanodielectrics Materials Science-Materials Chemistry
CiteScore
5.60
自引率
3.70%
发文量
7
审稿时长
21 weeks
期刊最新文献
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