2015
DOI: 10.1140/epjp/i2015-15244-8
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A new theoretical formulation of coupling thermo-electric breakdown in LDPE film under dc high applied fields

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Cited by 3 publications
(7 citation statements)
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“…These formulations are based, particularly, on the time evolution of the external current generated by the space charge dynamics within an insulator material sandwiched between two electrodes and subjected to a strong dc applied electric field. The results, obtained by this works, show the aspect of the electric breakdown marked by sudden jump of the external current density during its evolution in time and that comes earlier and earlier as the applied electric field is more and more intense [2,20,21]. These observed electrical instabilities have been attributed to the local distortions of the electric field caused by the generated bipolar charges.…”
Section: Introductionsupporting
confidence: 52%
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“…These formulations are based, particularly, on the time evolution of the external current generated by the space charge dynamics within an insulator material sandwiched between two electrodes and subjected to a strong dc applied electric field. The results, obtained by this works, show the aspect of the electric breakdown marked by sudden jump of the external current density during its evolution in time and that comes earlier and earlier as the applied electric field is more and more intense [2,20,21]. These observed electrical instabilities have been attributed to the local distortions of the electric field caused by the generated bipolar charges.…”
Section: Introductionsupporting
confidence: 52%
“…Following the assumption of space charges, some theoretical modeling works have been developed in order to study this fact and their generated effects such as the breakdown phenomena [16][17][18][19][20][21]. Indeed, among these theoretical approaches, the bipolar charge transport model has been considered as the most important formulation for better understanding the dynamics of space charges and the mechanisms involved during their evolutions in the insulating material [16].…”
Section: Introductionmentioning
confidence: 99%
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“…regroups the recombination processes between electrons and holes: of de-trapping process can be written as follows [13]: where Wd e,orh is the de-trapping barrier for electrons or holes. The boundary conditions for the injected charges, at the interfaces cathode-epoxy and polyethylene-anode, follow the Schottky law: Je pe an are the fluxes of electrons and holes at the interfaces cathode-epoxy and polyethylene-anode, respectively.…”
Section: S X T R E Orh mentioning
confidence: 99%
“…Principally, these characterizations have the theoretical aspects that are based on physical and numerical modeling developed for the transport problem and concerning by the dynamics of space charges generated in the mentioned materials. In addition, a significant part of our contributions has been devoted to the problem of thermo-electrical breakdowns within insulating materials, generated by electronic charge packets under strong dc applied electric fields [12,13].…”
Section: Introductionmentioning
confidence: 99%