Influence of the microstructure of electrode materials on the motion behaviors of vacuum arc cathode spot

IMR OpenIR

	Influence of the microstructure of electrode materials on the motion behaviors of vacuum arc cathode spot
	Wang, YP ; Zhang, H ; Ding, BJ ; Sun, J
通讯作者	Wang, YP(ypwang@imr.ac.cn)
	2004-12-01
发表期刊	ACTA METALLURGICA SINICA
ISSN	0412-1961
卷号	40 期号:12 页码:1269-1273
摘要	Role of the microstructure of cathode materials in the geometrical parameter and migration process of cathode spot is studied on the basis of the observation of microscopic trace of vacuum arc without external magnetic field. Arc erosion pattern shows that spot craters locate on the phases with weak voltage withstanding, whose size, morphology and distribution determine the character of the arc spots. For the cathode alloys with ultra-fine microstructure the spot is dispersed and moves quickly on the cathode surface, indicating the spot motion is controlled by the microstructure of the electrode materials. The spot migration mode changes from the jumping motion to a continuous one when the microstructure scale is less than the spot size. It is concluded that the constituent phases and their sizes are the important factor dominating the microscopic migration mode of arc cathode spots.
关键词	electrode material microstructure vacuum arc cathode spot
收录类别	SCI
语种	英语
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000226107700008
出版者	SCIENCE CHINA PRESS
引用统计	被引频次：4[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/80901
专题	中国科学院金属研究所
通讯作者	Wang, YP
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 2.Xian Jiaotong Univ, Sch Sci, Dept Mat Phys, Xian 710049, Peoples R China 3.Xian Jiaotong Univ, State Key Lab Met Mat Strength, Xian 710049, Peoples R China
推荐引用方式 GB/T 7714	Wang, YP,Zhang, H,Ding, BJ,et al. Influence of the microstructure of electrode materials on the motion behaviors of vacuum arc cathode spot[J]. ACTA METALLURGICA SINICA,2004,40(12):1269-1273.
APA	Wang, YP,Zhang, H,Ding, BJ,&Sun, J.(2004).Influence of the microstructure of electrode materials on the motion behaviors of vacuum arc cathode spot.ACTA METALLURGICA SINICA,40(12),1269-1273.
MLA	Wang, YP,et al."Influence of the microstructure of electrode materials on the motion behaviors of vacuum arc cathode spot".ACTA METALLURGICA SINICA 40.12(2004):1269-1273.