Experimental Studies of Demixing in Ar–N Plasmas Produced in a Wall-Stabilized Arc

✍ Scribed by I. Ksia̧żek

• Publisher: John Wiley and Sons
• Year: 2008
• Tongue: English
• Weight: 622 KB
• Volume: 48
• Category: Article
• ISSN: 0005-8025
• DOI: 10.1002/ctpp.200810058

✦ Synopsis

Abstract

Plasmas produced in a wall stabilized arc in mixtures of argon and nitrogen, containing different amounts of these elements have been studied. The plasma composition turns out to be very important to the process of demixing in radial direction. In plasmas containing mainly argon, the argon mass fraction reveals a local minimum on the arc axis while in plasmas containing large amount of nitrogen the argon mass fraction have a maximum on the arc axis.

The increase of nitrogen amount in Ar–N plasma influences the radial temperature profile causing a decrease of the temperature in plasma layers close to the stabilizing wall and an increase on the axis of plasma column. (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)