Investigation of the relevant kinetic processes in the initial stage of a double-arcing instability in oxygen plasmas
A numerical investigation of the kinetic processes in the initial (nanosecond range) stage of the double-arcing instability was developed. The plasma-sheath boundary region of an oxygen-operated cutting torch was considered. The energy balance and chemistry processes in the discharge were described....
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| Otros Autores: | , , , |
| Formato: | Capítulo de libro |
| Lenguaje: | Inglés |
| Publicado: |
American Institute of Physics Inc.
2018
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| Acceso en línea: | Registro en Scopus DOI Handle Registro en la Biblioteca Digital |
| Aporte de: | Registro referencial: Solicitar el recurso aquí |
| LEADER | 06483caa a22008417a 4500 | ||
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| 001 | PAPER-16974 | ||
| 003 | AR-BaUEN | ||
| 005 | 20241209092652.0 | ||
| 008 | 190410s2018 xx ||||fo|||| 00| 0 eng|d | ||
| 024 | 7 | |2 scopus |a 2-s2.0-85046992700 | |
| 030 | |a PHPAE | ||
| 040 | |a Scopus |b spa |c AR-BaUEN |d AR-BaUEN | ||
| 100 | 1 | |a Mancinelli, B. | |
| 245 | 1 | 0 | |a Investigation of the relevant kinetic processes in the initial stage of a double-arcing instability in oxygen plasmas |
| 260 | |b American Institute of Physics Inc. |c 2018 | ||
| 270 | 1 | 0 | |m Prevosto, L.; Universidad Tecnológica Nacional, CONICET, Facultad Regional Venado Tuerto, Departamento Ing. Electromecánica, Grupo de Descargas Eléctricas, Laprida 651, Argentina; email: prevosto@waycom.com.ar |
| 504 | |a Boulos, M., Fauchais, P., Pfender, E., (1994) Thermal Plasmas, Fundamentals and Applications, 1. , (Plenum Press, New York and London) | ||
| 504 | |a Nemchinsky, V.A., Severance, W.S., (2006) J. Phys. D: Appl. Phys., 39, p. R423 | ||
| 504 | |a Gielen, H.J.G., Schram, D.C., (1990) IEEE Trans. Plasma Sci., 18, p. 127 | ||
| 504 | |a Mancinelli, B., Prevosto, L., Chamorro, J.C., Minotti, F.O., Kelly, H., (2018) Plasma Chem. Plasma Process., 38, p. 147 | ||
| 504 | |a Prevosto, L., Kelly, H., Mancinelli, B., (2009) J. Appl. Phys., 105 | ||
| 504 | |a Prevosto, L., Kelly, H., Mancinelli, B., (2011) J. Appl. Phys., 110 | ||
| 504 | |a Nemchinsky, V.A., (2009) J. Phys. D: Appl. Phys., 42 | ||
| 504 | |a Mancinelli, B., Minotti, F.O., Prevosto, L., Kelly, H., (2014) J. Appl. Phys., 116 | ||
| 504 | |a Hagelaar, G.J.M., Pitchford, L.C., (2005) Plasma Sources Sci. Technol., 14, p. 722 | ||
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| 504 | |a Capitelli, M., Bardsley, J.N., (1989) Non-Equilibrium Processes in Partially Ionized Gases, , (Plenum Press, New York) | ||
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| 506 | |2 openaire |e Política editorial | ||
| 520 | 3 | |a A numerical investigation of the kinetic processes in the initial (nanosecond range) stage of the double-arcing instability was developed. The plasma-sheath boundary region of an oxygen-operated cutting torch was considered. The energy balance and chemistry processes in the discharge were described. It is shown that the double-arcing instability is a sudden transition from a diffuse (glow-like) discharge to a constricted (arc-like) discharge in the plasma-sheath boundary region arising from a field-emission instability. A critical electric field value of ∼107 V/m was found at the cathodic part of the nozzle wall under the conditions considered. The field-emission instability drives in turn a fast electronic-to-translational energy relaxation mechanism, giving rise to a very fast gas heating rate of at least ∼109 K/s, mainly due to reactions of preliminary dissociation of oxygen molecules via the highly excited electronic state O2(B3Σu -) populated by electron impact. It is expected that this fast oxygen heating rate further stimulates the discharge contraction through the thermal instability mechanism. © 2018 Author(s). |l eng | |
| 536 | |a Detalles de la financiación: Universidad Tecnológica Nacional, PID 4626 | ||
| 536 | |a Detalles de la financiación: Consejo Nacional de Investigaciones Científicas y Técnicas, PIP 11220120100453 | ||
| 536 | |a Detalles de la financiación: This work was supported by the grants from the CONICET (PIP 11220120100453) and Universidad Tecnológica Nacional (PID 4626). L.P. and F.O.M. are members of the CONICET. J.C.C. thanks CONICET for his doctoral fellowships. | ||
| 593 | |a Grupo de Descargas Eléctricas, Departamento Ing. Electromecánica, Facultad Regional Venado Tuerto (UTN), Laprida 651, Venado Tuerto, Santa Fe, 2600, Argentina | ||
| 593 | |a Universidad Tecnológica Nacional, CONICET, Facultad Regional Venado Tuerto, Departamento Ing. Electromecánica, Grupo de Descargas Eléctricas, Laprida 651, Venado Tuerto, Santa Fe, 2600, Argentina | ||
| 593 | |a Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Departamento de Física, Buenos Aires, 1428, Argentina | ||
| 593 | |a CONICET-Universidad de Buenos Aires, Instituto de Física Del Plasma (INFIP), Buenos Aires, 1428, Argentina | ||
| 690 | 1 | 0 | |a ELECTRIC DISCHARGES |
| 690 | 1 | 0 | |a EXCITED STATES |
| 690 | 1 | 0 | |a FIELD EMISSION |
| 690 | 1 | 0 | |a HEATING RATE |
| 690 | 1 | 0 | |a OXYGEN |
| 690 | 1 | 0 | |a OXYGEN CUTTING |
| 690 | 1 | 0 | |a PLASMA DIAGNOSTICS |
| 690 | 1 | 0 | |a PLASMA SHEATHS |
| 690 | 1 | 0 | |a THERMODYNAMIC STABILITY |
| 690 | 1 | 0 | |a CRITICAL ELECTRIC FIELD |
| 690 | 1 | 0 | |a EMISSION INSTABILITIES |
| 690 | 1 | 0 | |a EXCITED ELECTRONIC STATE |
| 690 | 1 | 0 | |a FAST ELECTRONICS |
| 690 | 1 | 0 | |a NANOSECOND RANGE |
| 690 | 1 | 0 | |a NUMERICAL INVESTIGATIONS |
| 690 | 1 | 0 | |a THERMAL INSTABILITIES |
| 690 | 1 | 0 | |a TRANSLATIONAL ENERGY |
| 690 | 1 | 0 | |a PLASMA STABILITY |
| 700 | 1 | |a Prevosto, L. | |
| 700 | 1 | |a Chamorro, Juan Camilo | |
| 700 | 1 | |a Minotti, F.O. | |
| 700 | 1 | |a Kelly, H. | |
| 773 | 0 | |d American Institute of Physics Inc., 2018 |g v. 25 |k n. 5 |p Phys. Plasmas |x 1070664X |w (AR-BaUEN)CENRE-6479 |t Physics of Plasmas | |
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