Compositional tailoring effect on electric field distribution for significantly enhanced breakdown strength and restrained conductive loss in sandwich-structured ceramic/polymer nanocomposites

2017 ◽  
Vol 5 (9) ◽  
pp. 4710-4718 ◽  
Author(s):  
Yifei Wang ◽  
Jin Cui ◽  
Linxi Wang ◽  
Qibin Yuan ◽  
Yujuan Niu ◽  
...  
Keyword(s):  
Electric Field ◽  
Polymer Nanocomposites ◽  
Field Distribution ◽  
Electric Field Distribution ◽  
Breakdown Strength ◽  
Conductive Loss ◽  
Polymer Dielectric

A sandwich-structured ceramic/polymer dielectric nanocomposite with significantly enhanced breakdown strength and restrained conductive loss was obtained by tailoring filler contents.

Optimizing electric field distribution via tuning cross-linked point size for improving the dielectric properties of polymer nanocomposites

Nanoscale ◽  
2020 ◽  
Vol 12 (23) ◽  
pp. 12416-12425
Author(s):  
Jie Liu ◽  
Yu Zhang ◽  
Zhaoyang Wang ◽  
Jiale Ding ◽  
Shuhui Yu ◽  
...  
Keyword(s):  
Dielectric Properties ◽  
Electric Field ◽  
Polymer Nanocomposites ◽  
Field Distribution ◽  
Chemical Bonding ◽  
Electric Field Distribution

All chemical bonding cross-linked nanocomposites were designed via tuning cross-linked points size for improving dielectric properties.

scholarly journals Research on Nonlinear EPDM for ±525kV HVDC Cable Accessories

2019 ◽  
Vol 260 ◽  
pp. 02001
Author(s):  
Dong Li ◽  
Zhien Zhu ◽  
Liming Yang ◽  
Yili Ma
Keyword(s):  
Electric Field ◽  
Field Distribution ◽  
Electric Field Distribution ◽  
Breakdown Strength ◽  
Weak Link ◽  
Interface Charge ◽  
Design And Manufacture ◽  
Conductive Properties ◽  
Ethylene Propylene Diene Terpolymer ◽  
Interfacial Charge

High voltage direct current (HVDC) cable accessories are usually the weak link in the cable system for the electric field distribution is often extremely uneven, and it has a range of adverse effects in design and manufacture. In this paper, Ethylene-propylene-diene terpolymer (EPDM) was developed for ±525 kV HVDC cable accessories, and the conductivity, XLPE/EPDM interface charge behavior and breakdown strength were tested respectively. The electric field distribution of cable accessories was calculated by COMSOL analysis software. It is shown that the conductivity of EPDM is nonlinear with electric field, and it is possible to achieve the uniformity of electric field distribution by using a composite material with nonlinear conductive properties. Furthermore, the interfacial charge characteristics of XLPE/EPDM depend on the conductivity of EPDM. As a consequence, the research will make a potential application for ±525 kV HVDC cable accessories.

Effect of Void Shape in Polymeric Insulator on the Electric Field Distribution

2017 ◽  
Vol 5 (3) ◽  
pp. 96
Author(s):  
I. Made Yulistya Negara ◽  
Dimas Anton Asfani ◽  
Daniar Fahmi ◽  
Yusrizal Afif
Keyword(s):  
Electric Field ◽  
Field Distribution ◽  
Electric Field Distribution ◽  
Void Shape

Tuning the Localized Surface Plasmon Resonance of Al-Al2O3 Nanosphere Towards NIR Region by Gold Coating

2020 ◽  
Vol 12 ◽  
Author(s):  
Jyoti Katyal ◽  
Shivani Gautam
Keyword(s):  
Electric Field ◽  
Field Distribution ◽  
Dielectric Layer ◽  
Electric Field Distribution ◽  
Active Material ◽  
Visible Region ◽  
Field Enhancement ◽  
Localized Surface Plasmon ◽  
Sers Substrate ◽  
Al Nanoparticles

Background: A relatively narrow LSPR peak and a strong inter band transition ranging around 800 nm makes Al strongly plasmonic active material. Usually, Al nanoparticles are preferred for UV-plasmonic as the SPR of small size Al nanoparticles locates in deep UV-UV region of the optical spectrum. This paper focused on tuning the LSPR of Al nanostructure towards infrared region by coating Au layer. The proposed structure has Au as outer layer which prevent the further oxidation of Al nanostructure. Methods: The Finite Difference Time Domain (FDTD) and Plasmon Hybridization Theory has been used to evaluated the LSPR and field enhancement of single and dimer Al-Al2O3-Au MDM nanostructure. Results: It is observed that the resonance mode show dependence on the thickness of Al2O3 layer and also on the composition of nanostructure. The Au layered MDM nanostructure shows two peak of equal intensities simultaneously in UV and visible region tuned to NIR region. The extinction spectra and electric field distribution profiles of dimer nanoparticles are compared with monomer to reveal the extent of coupling. The dimer configuration shows higher field enhancement ~107 at 1049 nm. By optimizing the thickness of dielectric layer the MDM nanostructure can be used over UV-visible-NIR region. Conclusion: The LSPR peak shows dependence on the thickness of dielectric layer and also on the composition of nanostructure. It has been observed that optimization of size and thickness of dielectric layer can provide two peaks of equal intensities in UV and Visible region which is advantageous for many applications. The electric field distribution profiles of dimer MDM nanostructure enhanced the field by ~107 in visible and NIR region shows its potential towards SERS substrate. The results of this study will provide valuable information for the optimization of LSPR of Al-Al2O3-Au MDM nanostructure to have high field enhancement.

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