Cargando…

Effect of Isothermal Conditions on the Charge Trapping/Detrapping Parameters in e-Beam Irradiated Thermally Aged XLPE Insulation in SEM

The effect of isothermal conditions on the trapping/detrapping process of charges in e-beam irradiated thermally aged XLPE insulation in scanning electron microscopy (SEM) has been investigated. Different isothermal conditions ranging from room temperature to 120 °C are applied on both unaged and ag...

Descripción completa

Detalles Bibliográficos
Autores principales: Boukezzi, Larbi, Rondot, Sébastien, Jbara, Omar, Ghoneim, Sherif S. M., Boubakeur, Ahmed, Abdelwahab, Saad A. Mohamed
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8911907/
https://www.ncbi.nlm.nih.gov/pubmed/35269149
http://dx.doi.org/10.3390/ma15051918
_version_ 1784666960965926912
author Boukezzi, Larbi
Rondot, Sébastien
Jbara, Omar
Ghoneim, Sherif S. M.
Boubakeur, Ahmed
Abdelwahab, Saad A. Mohamed
author_facet Boukezzi, Larbi
Rondot, Sébastien
Jbara, Omar
Ghoneim, Sherif S. M.
Boubakeur, Ahmed
Abdelwahab, Saad A. Mohamed
author_sort Boukezzi, Larbi
collection PubMed
description The effect of isothermal conditions on the trapping/detrapping process of charges in e-beam irradiated thermally aged XLPE insulation in scanning electron microscopy (SEM) has been investigated. Different isothermal conditions ranging from room temperature to 120 °C are applied on both unaged and aged XLPE samples (2 mm thick) by a suitable arrangement associated with SEM. For each applied test temperature, leakage, and influence currents have been measured simultaneously during and after e-beam irradiation. Experimental results show a big difference between the fresh and aged material regarding trapping and detrapping behavior. It has been pointed out that in the unaged material deep traps govern the process, whereas the shallow traps take part in the aged one. Almost all obtained results reveal that the trapped charge decreases and then increases as the temperature increases for the unaged sample. A deflection temperature corresponding to a minimum is observed at 50 °C. However, for the aged material, the maximum trapped charge decreases continuously with increasing temperature, and the material seems to trap fewer charges under e-beam irradiation at high temperature. Furthermore, thermal aging leads to the occurrence of detrapping process at high temperatures even under e-beam irradiation, which explains the decrease with time evolution of trapped charge during this period. The recorded leakage current increases with increasing temperature for both cases with pronounced values for aged material. The effect of temperature and thermal aging on electrostatic influence factor (K) and total secondary electron emission yield (σ) were also studied.
format Online
Article
Text
id pubmed-8911907
institution National Center for Biotechnology Information
language English
publishDate 2022
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-89119072022-03-11 Effect of Isothermal Conditions on the Charge Trapping/Detrapping Parameters in e-Beam Irradiated Thermally Aged XLPE Insulation in SEM Boukezzi, Larbi Rondot, Sébastien Jbara, Omar Ghoneim, Sherif S. M. Boubakeur, Ahmed Abdelwahab, Saad A. Mohamed Materials (Basel) Article The effect of isothermal conditions on the trapping/detrapping process of charges in e-beam irradiated thermally aged XLPE insulation in scanning electron microscopy (SEM) has been investigated. Different isothermal conditions ranging from room temperature to 120 °C are applied on both unaged and aged XLPE samples (2 mm thick) by a suitable arrangement associated with SEM. For each applied test temperature, leakage, and influence currents have been measured simultaneously during and after e-beam irradiation. Experimental results show a big difference between the fresh and aged material regarding trapping and detrapping behavior. It has been pointed out that in the unaged material deep traps govern the process, whereas the shallow traps take part in the aged one. Almost all obtained results reveal that the trapped charge decreases and then increases as the temperature increases for the unaged sample. A deflection temperature corresponding to a minimum is observed at 50 °C. However, for the aged material, the maximum trapped charge decreases continuously with increasing temperature, and the material seems to trap fewer charges under e-beam irradiation at high temperature. Furthermore, thermal aging leads to the occurrence of detrapping process at high temperatures even under e-beam irradiation, which explains the decrease with time evolution of trapped charge during this period. The recorded leakage current increases with increasing temperature for both cases with pronounced values for aged material. The effect of temperature and thermal aging on electrostatic influence factor (K) and total secondary electron emission yield (σ) were also studied. MDPI 2022-03-04 /pmc/articles/PMC8911907/ /pubmed/35269149 http://dx.doi.org/10.3390/ma15051918 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Boukezzi, Larbi
Rondot, Sébastien
Jbara, Omar
Ghoneim, Sherif S. M.
Boubakeur, Ahmed
Abdelwahab, Saad A. Mohamed
Effect of Isothermal Conditions on the Charge Trapping/Detrapping Parameters in e-Beam Irradiated Thermally Aged XLPE Insulation in SEM
title Effect of Isothermal Conditions on the Charge Trapping/Detrapping Parameters in e-Beam Irradiated Thermally Aged XLPE Insulation in SEM
title_full Effect of Isothermal Conditions on the Charge Trapping/Detrapping Parameters in e-Beam Irradiated Thermally Aged XLPE Insulation in SEM
title_fullStr Effect of Isothermal Conditions on the Charge Trapping/Detrapping Parameters in e-Beam Irradiated Thermally Aged XLPE Insulation in SEM
title_full_unstemmed Effect of Isothermal Conditions on the Charge Trapping/Detrapping Parameters in e-Beam Irradiated Thermally Aged XLPE Insulation in SEM
title_short Effect of Isothermal Conditions on the Charge Trapping/Detrapping Parameters in e-Beam Irradiated Thermally Aged XLPE Insulation in SEM
title_sort effect of isothermal conditions on the charge trapping/detrapping parameters in e-beam irradiated thermally aged xlpe insulation in sem
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8911907/
https://www.ncbi.nlm.nih.gov/pubmed/35269149
http://dx.doi.org/10.3390/ma15051918
work_keys_str_mv AT boukezzilarbi effectofisothermalconditionsonthechargetrappingdetrappingparametersinebeamirradiatedthermallyagedxlpeinsulationinsem
AT rondotsebastien effectofisothermalconditionsonthechargetrappingdetrappingparametersinebeamirradiatedthermallyagedxlpeinsulationinsem
AT jbaraomar effectofisothermalconditionsonthechargetrappingdetrappingparametersinebeamirradiatedthermallyagedxlpeinsulationinsem
AT ghoneimsherifsm effectofisothermalconditionsonthechargetrappingdetrappingparametersinebeamirradiatedthermallyagedxlpeinsulationinsem
AT boubakeurahmed effectofisothermalconditionsonthechargetrappingdetrappingparametersinebeamirradiatedthermallyagedxlpeinsulationinsem
AT abdelwahabsaadamohamed effectofisothermalconditionsonthechargetrappingdetrappingparametersinebeamirradiatedthermallyagedxlpeinsulationinsem