Spectral and electrical characteristics of a stabilized DC arc seeded with potassium
Abstract
A systematic investigation of spectral and voltage-current (U-I) characteristics of a DC are plasma was performed. The vertical, argon and wall stabilized DC are plasma was seeded by an easily ionizable element (EIE), potassium, in a wide range of concentrations. It was found that different are currents and potassium contents in the plasma have considerable influence on the plasma properties. A lower potassium content ( LT 10 g/l of KCl in solution) introduced into the are at lower currents ( LT 6A) causes an increase in are voltage and a. change in the are spectrum (intensity of lines), while at higher are currents ( GT 6A) it causes no change in the electrical characteristics, but a further change in the intensity of the are spectrum. Higher potassium concentrations, GT 20 g/l of KCl, increase the are voltage at higher currents ( GT 6A). There is a critical quantity of potassium in the plasma which suppresses high energy processes (ionization, excitation...) for a fixed are current, ...while spectral composition and lateral distribution of the residual emitted spectra become essentially changed. Amounts of potassium above critical do not cause further changes in the plasma spectral composition nor in the I-U characteristic, except in the spectral line intensities.
Source:
Contributions to Plasma Physics, 1997, 37, 5, 459-468
DOI: 10.1002/ctpp.2150370507
ISSN: 0863-1042
WoS: A1997XY18300006
Scopus: 2-s2.0-0031532364
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VinčaTY - JOUR AU - Stoiljković, Milovan AU - Holclajtner-Antunović, Ivanka D. PY - 1997 UR - https://vinar.vin.bg.ac.rs/handle/123456789/2088 AB - A systematic investigation of spectral and voltage-current (U-I) characteristics of a DC are plasma was performed. The vertical, argon and wall stabilized DC are plasma was seeded by an easily ionizable element (EIE), potassium, in a wide range of concentrations. It was found that different are currents and potassium contents in the plasma have considerable influence on the plasma properties. A lower potassium content ( LT 10 g/l of KCl in solution) introduced into the are at lower currents ( LT 6A) causes an increase in are voltage and a. change in the are spectrum (intensity of lines), while at higher are currents ( GT 6A) it causes no change in the electrical characteristics, but a further change in the intensity of the are spectrum. Higher potassium concentrations, GT 20 g/l of KCl, increase the are voltage at higher currents ( GT 6A). There is a critical quantity of potassium in the plasma which suppresses high energy processes (ionization, excitation...) for a fixed are current, while spectral composition and lateral distribution of the residual emitted spectra become essentially changed. Amounts of potassium above critical do not cause further changes in the plasma spectral composition nor in the I-U characteristic, except in the spectral line intensities. T2 - Contributions to Plasma Physics T1 - Spectral and electrical characteristics of a stabilized DC arc seeded with potassium VL - 37 IS - 5 SP - 459 EP - 468 DO - 10.1002/ctpp.2150370507 ER -
@article{ author = "Stoiljković, Milovan and Holclajtner-Antunović, Ivanka D.", year = "1997", abstract = "A systematic investigation of spectral and voltage-current (U-I) characteristics of a DC are plasma was performed. The vertical, argon and wall stabilized DC are plasma was seeded by an easily ionizable element (EIE), potassium, in a wide range of concentrations. It was found that different are currents and potassium contents in the plasma have considerable influence on the plasma properties. A lower potassium content ( LT 10 g/l of KCl in solution) introduced into the are at lower currents ( LT 6A) causes an increase in are voltage and a. change in the are spectrum (intensity of lines), while at higher are currents ( GT 6A) it causes no change in the electrical characteristics, but a further change in the intensity of the are spectrum. Higher potassium concentrations, GT 20 g/l of KCl, increase the are voltage at higher currents ( GT 6A). There is a critical quantity of potassium in the plasma which suppresses high energy processes (ionization, excitation...) for a fixed are current, while spectral composition and lateral distribution of the residual emitted spectra become essentially changed. Amounts of potassium above critical do not cause further changes in the plasma spectral composition nor in the I-U characteristic, except in the spectral line intensities.", journal = "Contributions to Plasma Physics", title = "Spectral and electrical characteristics of a stabilized DC arc seeded with potassium", volume = "37", number = "5", pages = "459-468", doi = "10.1002/ctpp.2150370507" }
Stoiljković, M.,& Holclajtner-Antunović, I. D.. (1997). Spectral and electrical characteristics of a stabilized DC arc seeded with potassium. in Contributions to Plasma Physics, 37(5), 459-468. https://doi.org/10.1002/ctpp.2150370507
Stoiljković M, Holclajtner-Antunović ID. Spectral and electrical characteristics of a stabilized DC arc seeded with potassium. in Contributions to Plasma Physics. 1997;37(5):459-468. doi:10.1002/ctpp.2150370507 .
Stoiljković, Milovan, Holclajtner-Antunović, Ivanka D., "Spectral and electrical characteristics of a stabilized DC arc seeded with potassium" in Contributions to Plasma Physics, 37, no. 5 (1997):459-468, https://doi.org/10.1002/ctpp.2150370507 . .