Understanding the impact of space charge variations with UV‐ and water‐aged epoxy alumina nanocomposites adopting pulsed electroacoustic techniques. (16th December 2020)

• Record Type: Journal Article
• Authors: Neelmani, ; Sarathi, Ramanujam; Suematsu, Hisayuki
• Is Part Of: Micro & nano letters. Volume 15:Number 14(2020)
• Page Start: 1059
• Page End: 1064
• Publication Date: 2020-12-16
• Subjects: pulsed electroacoustic methods -- nanocomposites -- space charge -- alumina -- resins -- ageing -- filled polymers -- permittivity -- nanofabrication -- water; water‐aged epoxy alumina nanocomposites -- pulsed electroacoustic technique -- alumina nanofiller -- epoxy resin -- epoxy–alumina nanocomposites -- ageing -- space charge -- ultraviolet specimens -- dielectric constant -- H2O -- Al2O3; Nanotechnology -- Periodicals; Nanostructures -- Periodicals; Microtechnology -- Periodicals; 620.5
• DOI: 10.1049/mnl.2020.0209
• Languages: English
• ISSNs: 1750-0443

Abstract

Abstract : Epoxy alumina nanocomposites were prepared to understand the space charge variations with ultra violet (UV)‐ and water‐aged specimens. Addition of alumina nanofiller to epoxy resin had suppressed the space charge formation. A pulsed electroacoustic technique was employed to measure the space charge accumulation in epoxy–alumina nanocomposites. A marginal increase in space charge with enhanced electric field in the bulk volume of insulation was observed with UV‐ and water‐aged nanocomposites. It was observed that 3 wt% sample showed better performance in all ageing conditions, which was confirmed through space charge studies and by the measurement of the dielectric parameters especially dielectric constant and tan( δ ).