Experimental analysis of a DC-RF hybrid plasma flow

被引:29
作者
Kawajiri, K [1 ]
Sato, T [1 ]
Nishiyama, H [1 ]
机构
[1] Tohoku Univ, Inst Fluid Sci, Aoba Ku, Sendai, Miyagi 9808577, Japan
基金
日本学术振兴会;
关键词
DC-RF hybrid plasma flow; flow control; optimized operating condition;
D O I
10.1016/S0257-8972(03)00256-1
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
A direct current (DC)-RF hybrid plasma flow has a very complex flow structure because of the interaction between a DC plasma jet and a RF-ICP flow. Therefore, flow control of a DC-RF hybrid plasma flow is very important to enhance its characteristics such as temperature, stability and plasma flame length. In this paper, we clarified the linear interaction between the flow condition and plasma characteristics, and then optimized its operating condition. A DC-RF hybrid plasma flow becomes stable and is elongated with decreasing the central gas ratio. It also becomes stable with increasing the swirl gas. Moreover, a large amount of N-2 gas can be injected with the central gas. (C) 2003 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:134 / 139
页数:6
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