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“Thermal Stabilization Effect” of Al(2)O(3) nano-dopants improves the high-temperature dielectric performance of polyimide
Insulation performance of the dielectrics under extreme conditions always attracts widespread attention in electrical and electronic field. How to improve the high-temperature dielectric properties of insulation materials is one of the key issues in insulation system design of electrical devices. Th...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group
2015
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4657051/ https://www.ncbi.nlm.nih.gov/pubmed/26597981 http://dx.doi.org/10.1038/srep16986 |
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author | Yang, Yang He, Jinliang Wu, Guangning Hu, Jun |
author_facet | Yang, Yang He, Jinliang Wu, Guangning Hu, Jun |
author_sort | Yang, Yang |
collection | PubMed |
description | Insulation performance of the dielectrics under extreme conditions always attracts widespread attention in electrical and electronic field. How to improve the high-temperature dielectric properties of insulation materials is one of the key issues in insulation system design of electrical devices. This paper studies the temperature-dependent corona resistance of polyimide (PI)/Al(2)O(3) nanocomposite films under high-frequency square-wave pulse conditions. Extended corona resistant lifetime under high-temperature conditions is experimentally observed in the 2 wt% nanocomposite samples. The “thermal stabilization effect” is proposed to explain this phenomenon which attributes to a new kind of trap band caused by nanoparticles. This effect brings about superior space charge characteristics and corona resistance under high temperature with certain nano-doping concentration. The proposed theory is experimentally demonstrated by space charge analysis and thermally stimulated current (TSC) tests. This discovered effect is of profound significance on improving high-temperature dielectric properties of nanocomposites towards various applications. |
format | Online Article Text |
id | pubmed-4657051 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | Nature Publishing Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-46570512015-11-30 “Thermal Stabilization Effect” of Al(2)O(3) nano-dopants improves the high-temperature dielectric performance of polyimide Yang, Yang He, Jinliang Wu, Guangning Hu, Jun Sci Rep Article Insulation performance of the dielectrics under extreme conditions always attracts widespread attention in electrical and electronic field. How to improve the high-temperature dielectric properties of insulation materials is one of the key issues in insulation system design of electrical devices. This paper studies the temperature-dependent corona resistance of polyimide (PI)/Al(2)O(3) nanocomposite films under high-frequency square-wave pulse conditions. Extended corona resistant lifetime under high-temperature conditions is experimentally observed in the 2 wt% nanocomposite samples. The “thermal stabilization effect” is proposed to explain this phenomenon which attributes to a new kind of trap band caused by nanoparticles. This effect brings about superior space charge characteristics and corona resistance under high temperature with certain nano-doping concentration. The proposed theory is experimentally demonstrated by space charge analysis and thermally stimulated current (TSC) tests. This discovered effect is of profound significance on improving high-temperature dielectric properties of nanocomposites towards various applications. Nature Publishing Group 2015-11-24 /pmc/articles/PMC4657051/ /pubmed/26597981 http://dx.doi.org/10.1038/srep16986 Text en Copyright © 2015, Macmillan Publishers Limited http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
spellingShingle | Article Yang, Yang He, Jinliang Wu, Guangning Hu, Jun “Thermal Stabilization Effect” of Al(2)O(3) nano-dopants improves the high-temperature dielectric performance of polyimide |
title | “Thermal Stabilization Effect” of Al(2)O(3)
nano-dopants improves the high-temperature dielectric performance of polyimide |
title_full | “Thermal Stabilization Effect” of Al(2)O(3)
nano-dopants improves the high-temperature dielectric performance of polyimide |
title_fullStr | “Thermal Stabilization Effect” of Al(2)O(3)
nano-dopants improves the high-temperature dielectric performance of polyimide |
title_full_unstemmed | “Thermal Stabilization Effect” of Al(2)O(3)
nano-dopants improves the high-temperature dielectric performance of polyimide |
title_short | “Thermal Stabilization Effect” of Al(2)O(3)
nano-dopants improves the high-temperature dielectric performance of polyimide |
title_sort | “thermal stabilization effect” of al(2)o(3)
nano-dopants improves the high-temperature dielectric performance of polyimide |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4657051/ https://www.ncbi.nlm.nih.gov/pubmed/26597981 http://dx.doi.org/10.1038/srep16986 |
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