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Understanding discharge activity due to water droplet in epoxy nanocomposites using acoustic emission technique
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TLDR
In this paper, an attempt has been made to understand the characteristics/formation of corona/arcing discharges from water droplet under high electric field, in epoxy nanocomposites, adopting Acoustic Emission (AE) technique.Abstract:
In the present study an attempt has been made to understand the characteristics/formation of corona/arcing discharges from water droplet under high electric field, in epoxy nanocomposites, adopting Acoustic Emission (AE) technique. The exfoliated/intercalated properties of the nanocomposites were analyzed through transmission electron microscopy (TEM) studies. It is observed that: corona initiated discharges are of intermittent process; low wt% of nanoclay content in epoxy resin reduces the surface carbonization due to arcing/corona discharges; gamma irradiation of epoxy nanocomposites have a great impact on the performance of the material. Based on AE studies, it could be concluded that the frequency content of AE signal generated due to arcing lies up to 250 kHz. K e y w o r d s: arcing, corona, epoxy resin, insulation, nanocomposites, UHF signal, water dropletread more
Citations
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Behaviour of Water Droplets Under the Influence of a Uniform Electric Field in Nanocomposite Samples of Epoxy Resin/TiO2
TL;DR: In this paper, a uniform electric field was applied and the behavior of the water droplets was observed, and the water conductivity, the droplet volume, the number of droplets and the position with respect to (w.r.t.) the electrodes were studied.
Journal ArticleDOI
Study of The Phenomena of Surface Discharges and Flashover in Nanocomposite Epoxy Resin under the Influence of Homogeneous Electric Fields
TL;DR: In this paper, epoxy resin samples without and with nanoparticles (0 wt, 1 wt), 3 wt, 5 wt%, and 10 wt%) are investigated regarding the surface discharges and the flashover voltages.
Journal ArticleDOI
Understanding water droplet initiated discharges on epoxy nanocomposites under harmonic AC voltages adopting uhf technique
TL;DR: In this paper, epoxy nano composite samples of different clay content are subjected to water droplet initiated discharge tests using controlled harmonic content high voltage supply, and the effect of a clay additive up to 1% by weight is shown to increase droplet contact angle by 8% with a subsequent reduction beyond this content.
Proceedings ArticleDOI
Epoxy resin with montmorillonite nanofillers: Flashover voltages and surface discharges
TL;DR: In this paper, surface discharges and flashover voltages on epoxy resin nanocomposite surfaces were investigated and the degradation of the insulting material was indicated in this paper, where water droplet number and volume, droplet conductivity as well as the distance of the droplets from the electrodes were taken into account.
Proceedings ArticleDOI
Factors affecting the water droplet behavior on mica sheets under the influence of homogeneous electric fields
TL;DR: In this article, the behavior of water droplets on mica sheets under the influence of uniform electric fields was investigated, and various factors affecting the behavior were investigated, including surface discharges.
References
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Journal ArticleDOI
Polymer-layered silicate nanocomposites: preparation, properties and uses of a new class of materials
TL;DR: In this article, a review of polymer-layered silicate nanocomposites is presented, where the polymer chains are sandwiched in between silicate layers and exfoliated layers are more or less uniformly dispersed in the polymer matrix.
Journal ArticleDOI
Synthesis and Characterization of Layered Silicate-Epoxy Nanocomposites
Journal ArticleDOI
Polymer nanocomposites as dielectrics and electrical insulation-perspectives for processing technologies, material characterization and future applications
TL;DR: In this article, the future of mesoscopic properties of nanocomposite polymers is discussed, and several interesting results to indicate the foreseeable future have been revealed, some of which are described on materials and processing, together with basic concepts and future direction.
Journal ArticleDOI
Morphology and toughness/stiffness balance of nanocomposites based upon anhydride‐cured epoxy resins and layered silicates
TL;DR: In this paper, basic correlations between polymer morphology, silicate superstructures, glass temperature, stiffness and toughness of thermoset nanocomposites were investigated as a function of layered silicate type and content.
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