Title :
Arc Root Motion in an Argon-Hydrogen DC Plasma Torch
Author :
Huang, Heji ; Pan, Wenxia ; Wu, Chengkang
Author_Institution :
Inst. of Mech., Chinese Acad. of Sci., Beijing
Abstract :
Arc root motion on the anode surface of a DC nontransferred plasma torch was observed. Adding hydrogen changes the arc root attachment from a diffused type to a constricted type, and the arc root of Ar-H2 plasma suddenly jumps from one spot to another irregularly. Images of the arc root motions taken by a high-speed video camera are presented.
Keywords :
arcs (electric); argon; hydrogen; plasma instability; plasma torches; Ar-H2; Ar-H2 plasma; anode surface; arc root attachment; arc root motion; argon-hydrogen DC plasma torch; high-speed video camera; plasma stability; Ar-$hbox{H}_{2}$ plasma; Ar-$hbox{H}_{2}$ plasma; Arc root motion; dc plasma; high speed video camera; plasma stability;
Journal_Title :
Plasma Science, IEEE Transactions on
DOI :
10.1109/TPS.2008.920226
