Repository logo
 

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

Simple item page
dc.contributor.authorRocca, Jorge J., author
dc.contributor.authorEtcheverry, Javier I., author
dc.contributor.authorMartínez, Oscar E., author
dc.contributor.authorCesa, Yanina, author
dc.contributor.authorMingolo, Nélida, author
dc.contributor.authorIEEE, publisher
dc.date.accessioned2007-01-03T08:09:59Z
dc.date.available2007-01-03T08:09:59Z
dc.date.issued2000
dc.description.abstractThe 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.mediumborn digital
dc.format.mediumarticles
dc.identifier.bibliographicCitationMingolo, Nélida, et al., Enhanced Energy Deposition Efficiency of Glow Discharge Electron Beams for Metal Surface Treatment, IEEE Transactions on Plasma Science 28, no. 2 (April 2000): 386-393.
dc.identifier.urihttp://hdl.handle.net/10217/67519
dc.languageEnglish
dc.language.isoeng
dc.publisherColorado State University. Libraries
dc.relation.ispartofFaculty Publications
dc.rights©2000 IEEE.
dc.rightsCopyright and other restrictions may apply. User is responsible for compliance with all applicable laws. For information about copyright law, please see https://libguides.colostate.edu/copyright.
dc.subjectglow discharge
dc.subjectelectron gun
dc.subjectsurface treatment
dc.titleEnhanced energy deposition efficiency of glow discharge electron beams for metal surface treatment
dc.typeText

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
ECEjjr00052.pdf
Size:
156.27 KB
Format:
Adobe Portable Document Format
Description:
Download

Collections

Faculty Publications