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dc.contributor.author
Mingolo, Nelida  
dc.contributor.author
Cesa, Yanina  
dc.contributor.author
Martínez, Oscar Eduardo  
dc.contributor.author
Etcheverry, Javier Ignacio  
dc.contributor.author
Rocca, Jorge J.  
dc.date.available
2019-03-15T21:29:35Z  
dc.date.issued
2000-04  
dc.identifier.citation
Mingolo, Nelida; Cesa, Yanina; Martínez, Oscar Eduardo; Etcheverry, Javier Ignacio; Rocca, Jorge J.; Enhanced energy deposition efficiency of glow discharge electron beams for metal surface treatment; Institute of Electrical and Electronics Engineers; IEEE Transactions on Plasma Science; 28; 2; 4-2000; 386-393  
dc.identifier.issn
0093-3813  
dc.identifier.uri
http://hdl.handle.net/11336/71806  
dc.description.abstract
The energy deposition efficiency and focal spot dynamics of electron beams produced by pulsed cold-cathode high-voltage glow discharges for metal surface treatment are investigated for two different cathode geometries. A concave cathode geometry in which the focusing is dominated by the convergence of the electric field lines in the cathode fall region is compared with a flat cathode in which the focusing is exclusively caused by the self-generated magnetic field. Results of the treatment of AISI 4140 carbon steel samples show that the concave cathode geometry significantly increases the efficiency, reduces the threshold power necessary for melting, and is less sensitive to variations in the discharge parameters and sample position. The results of numerical modeling indicate that the observed increase in efficiency is caused by the longer persistence of the focal spot on the sample. The model can be used to predict the discharge parameters required for a desired treatment.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
Institute of Electrical and Electronics Engineers  
dc.rights
info:eu-repo/semantics/openAccess  
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/  
dc.subject
Electron Beam  
dc.subject.classification
Recubrimientos y Películas  
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Ingeniería de los Materiales  
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INGENIERÍAS Y TECNOLOGÍAS  
dc.title
Enhanced energy deposition efficiency of glow discharge electron beams for metal surface treatment  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2019-03-14T14:13:32Z  
dc.journal.volume
28  
dc.journal.number
2  
dc.journal.pagination
386-393  
dc.journal.pais
Estados Unidos  
dc.description.fil
Fil: Mingolo, Nelida. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física; Argentina  
dc.description.fil
Fil: Cesa, Yanina. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física; Argentina  
dc.description.fil
Fil: Martínez, Oscar Eduardo. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina  
dc.description.fil
Fil: Etcheverry, Javier Ignacio. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina  
dc.description.fil
Fil: Rocca, Jorge J.. State University of Colorado - Fort Collins; Estados Unidos  
dc.journal.title
IEEE Transactions on Plasma Science  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://ieeexplore.ieee.org/document/848097  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1109/27.848097