Enhanced energy deposition efficiency of glow discharge electron beams for metal surface treatment
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...
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| Formato: | Acta de conferencia Capítulo de libro |
| Lenguaje: | Inglés |
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IEEE
2000
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| Acceso en línea: | Registro en Scopus DOI Handle Registro en la Biblioteca Digital |
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| LEADER | 08578caa a22008297a 4500 | ||
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| 001 | PAPER-20928 | ||
| 003 | AR-BaUEN | ||
| 005 | 20250725121859.0 | ||
| 008 | 190411s2000 xx ||||fo|||| 00| 0 eng|d | ||
| 024 | 7 | |2 scopus |a 2-s2.0-0034172320 | |
| 030 | |a ITPSB | ||
| 040 | |a Scopus |b spa |c AR-BaUEN |d AR-BaUEN | ||
| 100 | 1 | |a Mingolo, Nélida | |
| 245 | 1 | 0 | |a Enhanced energy deposition efficiency of glow discharge electron beams for metal surface treatment |
| 260 | |b IEEE |c 2000 | ||
| 270 | 1 | 0 | |m Mingolo, Nelida; Universidad de Buenos Aires, Buenos Aires, Argentina |
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| 504 | |a Mingolo, N., Rocca, J.J., Mater. Res., , Production of amorphous metallic surfaces by means of a pulsed glow discharge electron beam, J. vol. 7, no. 5, pp. 1096-1099, 1992 | ||
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| 504 | |a Cobine, J.D., Gaseous Conductors. Theory and Engineering Applications. New York: Dover, , 1958, p. 218 | ||
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| 506 | |2 openaire |e Política editorial | ||
| 520 | 3 | |a 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. |l eng | |
| 536 | |a Detalles de la financiación: Universidad de Buenos Aires | ||
| 536 | |a Detalles de la financiación: Agencia Nacional de Promoción Científica y Tecnológica | ||
| 536 | |a Detalles de la financiación: Consejo Nacional de Investigaciones Científicas y Técnicas | ||
| 536 | |a Detalles de la financiación: Manuscript received June 10, 1999; revised October 12, 1999. This work was supported in part by the Universidad de Buenos Aires, CONICET, and the Agencia Nacional de Promoción Cientifica y Tecnológica. N. Mingolo and Y. Cesa are with the Laboratorio de Haces Dirigidos, Depar-tamento de Física, Facultad de Ingeniería, Universidad de Buenos Aires, 1063 Buenos Aires, Argentina (e-mail: nmingol@tron.fi.uba.ar). O. E. Martínez and J. I. Etcheverry are with the Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, 1428 Buenos Aires, Argentina. J. J. Rocca is with the Department of Electrical Engineering, Colorado State University, Fort Collins, CO 80523 USA. Publisher Item Identifier S 0093-3813(00)03663-8. | ||
| 593 | |a Laboratorio de Haces Dirigidos, Departamento de Física, Universidad de Buenos Aires, 1063 Buenos Aires, Argentina | ||
| 593 | |a Department of Electrical Engineering, Colorado State University, Fort Collins, CO 80523, United States | ||
| 690 | 1 | 0 | |a CARBON STEEL |
| 690 | 1 | 0 | |a CATHODES |
| 690 | 1 | 0 | |a ELECTRIC FIELDS |
| 690 | 1 | 0 | |a ELECTRON BEAMS |
| 690 | 1 | 0 | |a ELECTRON GUNS |
| 690 | 1 | 0 | |a ELECTRON IRRADIATION |
| 690 | 1 | 0 | |a GLOW DISCHARGES |
| 690 | 1 | 0 | |a MAGNETIC FIELDS |
| 690 | 1 | 0 | |a MATHEMATICAL MODELS |
| 690 | 1 | 0 | |a SURFACE TREATMENT |
| 690 | 1 | 0 | |a ENERGY DEPOSITION |
| 690 | 1 | 0 | |a PLASMA APPLICATIONS |
| 700 | 1 | |a Cesa, Y. | |
| 700 | 1 | |a Martínez, Oscar Eduardo | |
| 700 | 1 | |a Etcheverry, Javier Ignacio | |
| 700 | 1 | |a Rocca, J.J. | |
| 711 | 2 | |c Piscataway, NJ, United States | |
| 773 | 0 | |d IEEE, 2000 |g v. 28 |h pp. 386-393 |k n. 2 |p IEEE Trans Plasma Sci |x 00933813 |w (AR-BaUEN)CENRE-1895 |t IEEE Transactions on Plasma Science | |
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| 856 | 4 | 0 | |u https://doi.org/10.1109/27.848097 |y DOI |
| 856 | 4 | 0 | |u https://hdl.handle.net/20.500.12110/paper_00933813_v28_n2_p386_Mingolo |y Handle |
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