Energy fluctuations in a direct current plasma torch with inter-electrode inserts operated at reduced pressure

CORC > 力学研究所 > 中国科学院力学研究所 > 高温气体动力学国家重点实验室

	Energy fluctuations in a direct current plasma torch with inter-electrode inserts operated at reduced pressure
	Huang HJ(黄河激); Pan WX(潘文霞); Wu CK(吴承康); Huang, HJ
刊名	PLASMA CHEMISTRY AND PLASMA PROCESSING
	2012-02-01
通讯作者邮箱	huang@imech.ac.cn
卷号	32 期号:1 页码:65-74
关键词	dc plasma Inter-electrode insert Fluctuation Stability Atmospheric-Pressure Arc Technology Behavior Jet
ISSN号	0272-4324
通讯作者	Huang, HJ
产权排序	[Huang, Heji;Pan, Wenxia; Wu, Chengkang] Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China
中文摘要	Direct current (dc) plasma torch with inter-electrode inserts has the merits of fixed arc length, relative high enthalpy and may show advantages in future plasma processes where stability and controllability are must-have. Energy fluctuations in the plasma may result from power supply ripple, arc length variation, and/or acoustic oscillation. Using an improved power supply with a flat waveform, the characteristics of an argon plasma energy instabilities under reduced pressure were studied by means of simultaneously monitoring the arc voltage and arc current spectrum. Dependence of the arc fluctuation behavior on the plasma generating parameters, such as the current intensity, the plasma gas flow rates and the vacuum chamber pressure were investigated and discussed. Results show that the plasma torch has a typical U-shaped voltage-ampere characteristic (VAC). The correlation between the VAC and the probability of energy distributions was studied. Through pressure measurements at the cathode cavity and the vacuum chamber, the existence of sonic flow in the inter-electrode insert channel was confirmed.
学科主题	电磁流体力学和等离子体动力学
分类号	二类/Q2
收录类别	SCI ; EI
资助信息	This work is supported by the National Natural Science Foundation of China under Grant Nos. 11175226, 50836007 and 10921062.
原文出处	http://dx.doi.org/10.1007/s11090-011-9331-2
语种	英语
WOS记录号	WOS:000304172300005
公开日期	2013-01-14
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/46380]
专题	力学研究所_高温气体动力学国家重点实验室
通讯作者	Huang, HJ
推荐引用方式 GB/T 7714	Huang HJ,Pan WX,Wu CK,et al. Energy fluctuations in a direct current plasma torch with inter-electrode inserts operated at reduced pressure[J]. PLASMA CHEMISTRY AND PLASMA PROCESSING,2012,32(1):65-74.
APA	Huang HJ,Pan WX,Wu CK,&Huang, HJ.(2012).Energy fluctuations in a direct current plasma torch with inter-electrode inserts operated at reduced pressure.PLASMA CHEMISTRY AND PLASMA PROCESSING,32(1),65-74.
MLA	Huang HJ,et al."Energy fluctuations in a direct current plasma torch with inter-electrode inserts operated at reduced pressure".PLASMA CHEMISTRY AND PLASMA PROCESSING 32.1(2012):65-74.