Abstract

The investigation of the lithium effect on the temperature distribution of the arc is presented. Measurements were carried out by the Schlieren interference method to about 4000°K. The arc free burning in nitrogen was observed and the results of temperature measurements, carried out with and without lithium addition, were presented. Lithium was added to the arc by anode evaporation. Temperature measurements in outer areas were connected to previously presented spectroscopical measurements in the central part of the arc. The lithium addition affects the increase of the electroconductive central part of the arc.

Effect of Alkali and Alkaline Earth Chlorides on the Anode Temperature of the dc Arc*

Bert L. Vallee and Ralph E. Thiers
J. Opt. Soc. Am. 46(2) 83-86 (1956)

Anode Temperatures and Characteristics of the dc Arc in Noble Gases*†

Bert L. Vallee and Milton R. Baker
J. Opt. Soc. Am. 46(2) 77-82 (1956)

Spectroscopic Estimation of dc Arc Electrode Vapor-Jet Velocities*

Stanley C. Baker
J. Opt. Soc. Am. 54(10) 1204-1210 (1964)

Behavior of the dc Iron Arc and Its Usefulness in the Determination of f Values

Ray Hefferlin
J. Opt. Soc. Am. 49(7) 680-685 (1959)

Quantitative Schlieren Techniques Applied to High Current Arc Investigations

U. Kogelschatz and W. R. Schneider
Appl. Opt. 11(8) 1822-1832 (1972)