Enhanced energy deposition efficiency of glow discharge electron beams for metal surface treatment

Autores
Mingolo, Nelida; Cesa, Yanina; Martínez, Oscar Eduardo; Etcheverry, Javier Ignacio; Rocca, Jorge J.
Año de publicación
2000
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
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.
Fil: Mingolo, Nelida. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física; Argentina
Fil: Cesa, Yanina. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física; Argentina
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
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
Fil: Rocca, Jorge J.. State University of Colorado - Fort Collins; Estados Unidos
Materia
Electron Beam
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/71806
Acceder
id CONICETDig_d76de15d0f4fbb602f5628a57ba383eb
oai_identifier_str oai:ri.conicet.gov.ar:11336/71806
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Enhanced energy deposition efficiency of glow discharge electron beams for metal surface treatmentMingolo, NelidaCesa, YaninaMartínez, Oscar EduardoEtcheverry, Javier IgnacioRocca, Jorge J.Electron Beamhttps://purl.org/becyt/ford/2.5https://purl.org/becyt/ford/2The 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.Fil: Mingolo, Nelida. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física; ArgentinaFil: Cesa, Yanina. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física; ArgentinaFil: Martínez, Oscar Eduardo. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Etcheverry, Javier Ignacio. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Rocca, Jorge J.. State University of Colorado - Fort Collins; Estados UnidosInstitute of Electrical and Electronics Engineers2000-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/71806Mingolo, 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; 386-3930093-3813CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://ieeexplore.ieee.org/document/848097info:eu-repo/semantics/altIdentifier/doi/10.1109/27.848097info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:14:17Zoai:ri.conicet.gov.ar:11336/71806instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:14:17.612CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Enhanced energy deposition efficiency of glow discharge electron beams for metal surface treatment
title Enhanced energy deposition efficiency of glow discharge electron beams for metal surface treatment
spellingShingle Enhanced energy deposition efficiency of glow discharge electron beams for metal surface treatment
Mingolo, Nelida
Electron Beam
title_short Enhanced energy deposition efficiency of glow discharge electron beams for metal surface treatment
title_full Enhanced energy deposition efficiency of glow discharge electron beams for metal surface treatment
title_fullStr Enhanced energy deposition efficiency of glow discharge electron beams for metal surface treatment
title_full_unstemmed Enhanced energy deposition efficiency of glow discharge electron beams for metal surface treatment
title_sort Enhanced energy deposition efficiency of glow discharge electron beams for metal surface treatment
dc.creator.none.fl_str_mv Mingolo, Nelida
Cesa, Yanina
Martínez, Oscar Eduardo
Etcheverry, Javier Ignacio
Rocca, Jorge J.
author Mingolo, Nelida
author_facet Mingolo, Nelida
Cesa, Yanina
Martínez, Oscar Eduardo
Etcheverry, Javier Ignacio
Rocca, Jorge J.
author_role author
author2 Cesa, Yanina
Martínez, Oscar Eduardo
Etcheverry, Javier Ignacio
Rocca, Jorge J.
author2_role author
author
author
author
dc.subject.none.fl_str_mv Electron Beam
topic Electron Beam
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.5
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv 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.
Fil: Mingolo, Nelida. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física; Argentina
Fil: Cesa, Yanina. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física; Argentina
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
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
Fil: Rocca, Jorge J.. State University of Colorado - Fort Collins; Estados Unidos
description 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.
publishDate 2000
dc.date.none.fl_str_mv 2000-04
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/71806
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
0093-3813
CONICET Digital
CONICET
url http://hdl.handle.net/11336/71806
identifier_str_mv 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
0093-3813
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://ieeexplore.ieee.org/document/848097
info:eu-repo/semantics/altIdentifier/doi/10.1109/27.848097
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Institute of Electrical and Electronics Engineers
publisher.none.fl_str_mv Institute of Electrical and Electronics Engineers
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1844614069058797568
score 13.070432

Publicaciones similares