Atmospheric Pressure Cold Argon/Oxygen Plasma Jet Assisted by Preionization of Syringe Needle Electrode  

作　　者：钱沐杨 任春生 王德真 冯岩 张家良 

机构地区：[1]School of Physics and Optoelectronic Technology,Dalian University of Technology

出　　处：《Plasma Science and Technology》2010年第5期561-565,共5页等离子体科学和技术（英文版）

基　　金：supported by National Natural Science Foundation of China (Nos.10775026, 50537020, 50528707)

摘　　要：An atmospheric pressure nonequilibrium argon/oxygen plasma jet assisted by the preionization of syringe needle electrode discharge is reported. With the syringe needle plasma as its pre-ionization source, the hybrid barrier-jet was shown to generate uniform discharge with a lower breakdown voltage and a relatively low gas temperature varying from 390 K to 440 K, even when the vol.% oxygen in argon was up to 6%. Utilizing the actinometry method, the concentration of atomic oxygen was estimated to be about in an orders of magnitude of 10^17 cm^-3. The argon/oxygen plasma jet was then employed to clean out heat transfer oil, with a maximum cleaning rate of 0.1 mm/s achieved.An atmospheric pressure nonequilibrium argon/oxygen plasma jet assisted by the preionization of syringe needle electrode discharge is reported. With the syringe needle plasma as its pre-ionization source, the hybrid barrier-jet was shown to generate uniform discharge with a lower breakdown voltage and a relatively low gas temperature varying from 390 K to 440 K, even when the vol.% oxygen in argon was up to 6%. Utilizing the actinometry method, the concentration of atomic oxygen was estimated to be about in an orders of magnitude of 10^17 cm^-3. The argon/oxygen plasma jet was then employed to clean out heat transfer oil, with a maximum cleaning rate of 0.1 mm/s achieved.

关 键 词：atmospheric pressure nonequilibrium Ar/02 plasma PREIONIZATION ACTINOMETRY concentration of atomic oxygen heat transfer oil 

分 类 号：O53[理学—等离子体物理] O358[理学—物理]