EMISSION DES ELECTRONS A LA CATHODE SOUS L'EFFET DU CHAMP ELECTRIQUE ET LA TEMPERATURE DANS UN ARC ELECTRIQUE
| Autor: | Messaad, M., Mammar, K., Tioursi, M., Abbaoui, M'Hammed, Lefort, A. |
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| Přispěvatelé: | Laboratoire de Physique des Décharges Electriques (LPDE), Université des sciences et de la Technologie d'Oran Mohamed Boudiaf [Oran] (USTO MB)-Département d'Electrotechnique, Faculté de Génie Electrique, Laboratoire arc électrique et plasmas thermiques (LAEPT), Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Centre National de la Recherche Scientifique (CNRS), Université de Saida, Abbaoui, M'Hammed |
| Jazyk: | francouzština |
| Rok vydání: | 2004 |
| Předmět: |
cathode
Pacs 50 Physics::Instrumentation and Detectors Physics::Plasma Physics densité de courant [PHYS.PHYS.PHYS-PLASM-PH]Physics [physics]/Physics [physics]/Plasma Physics [physics.plasm-ph] [PHYS.PHYS.PHYS-PLASM-PH] Physics [physics]/Physics [physics]/Plasma Physics [physics.plasm-ph] champ électrique température Physics::Accelerator Physics Arc électrique émission électronique |
| Zdroj: | The First International Conference on Electrical/Electronic Engineering Communication and Physical System The First International Conference on Electrical/Electronic Engineering Communication and Physical System, 2004, Saida (20000), Algérie |
| Popis: | 5 pages; The current density in arc discharge and especially at the cathode has been a source of controversy for several years. Most of theoretical analysis of arc cathode spot was directed toward determination of the mechanism that provided such high emission current density. The current density is one of the most essential physical quantities for each of the processes in the arc cathode regime. In this paper a review is given on the different equations to calculate the cathodic electron-emission current density and a comparative study is made. |
| Databáze: | OpenAIRE |
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