Abstract Plasma of the free burning electric arc between Ag–SnO2–ZnO composite electrodes as well as brass electrodes were investigated. The plasma temperature distributions were obtained by Boltzmann plot method involving Cu I, Ag I or Zn I spectral line emissions. The electron density distributions were obtained from the width and from absolute intensity of spectral lines. The laser absorption spectroscopy was used for measurement of copper atom concentration in plasma. Plasma equilibrium composition was calculated using two independent groups of experimental values (temperature and copper atom concentration, temperature and electron density). It was found that plasma of the free burning electric arc between brass electrodes is in local thermodynamical equilibrium. The experimental verification of the spectroscopic data of Zn I spectral lines was carried out.
Spectroscopy peculiarities of thermal plasma of electric arc discharge between electrodes with Zn admixtures
Advances in Space Research ; 54 , 7 ; 1235-1241
2013-01-01
7 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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