NDLI: Cathode Spot Movement of a Low-Pressure Arc for Removing Oxide Layer

Content Provider	IEEE Xplore Digital Library
Author	Sato, A. Iwao, T. Yumoto, M.
Copyright Year	1973
Abstract	A remarkable characteristic of the cathode spot of a low-pressure arc is that it can remove an oxide layer preferentially. Recently, the cathode spot of a low-pressure arc has been used for cleaning metal oxide surfaces before thermal spraying or surface modification. However, few reports have described the cathode spot movement or the oxide removal process. This experiment was carried out using the SS400 cathode workpiece and a cylindrical copper anode. The cathode spot movement was recorded using a high-speed video camera. The images were later analyzed using plasma image processing. The workpiece surface was covered with a thick oxide of 9.67 mum. The workpiece surface was analyzed using a laser microscope after processing. The cathode spot movement shows differences as the processing time increases and as the oxide layer roughness changes.
Sponsorship	IEEE Nuclear and Plasma Sciences Society
Starting Page	1004
Ending Page	1009
Page Count	6
File Size	845987
File Format	PDF
ISSN	00933813
Volume Number	35
Issue Number	4
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-08-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Cathodes Thermal spraying Rough surfaces Surface roughness Cleaning Copper Anodes Cameras Image analysis Plasma materials processing vacuum arc Cathode spot movement low-pressure arc moved distance oxide layer processing time surface roughness tracks of cathode spots
Content Type	Text
Resource Type	Article
Subject	Nuclear and High Energy Physics Condensed Matter Physics

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Cathode Spot Movement of Low Pressure Arc Removing Oxide Layer

Oxide-Layer Thickness Effect for Surface Roughness Using Low-Pressure Arc

Cathode spots jump of low pressure arc

Movement and voltage fluctuation of vacuum arc cathode spots on SS400(Fe+C) surface with oxide layer

Split process of cathode spots in low-pressure arc on Fe+C surface with oxide layer

The influence of gap distance on cathode spot motion in removing oxide layer on metal surface by vacuum arc

The Influence of Protection Gas Pressure on the Descaling Process of Vacuum Arc in Removing Oxide Layer on Metal Surface

Effect of Pressure on Surface Roughness Treated by Cathode Spots of Low Pressure Arc

Dependence of Initial Surface Roughness for Treated Surface by Cathode Spots of Low Pressure Arc

Cathode Spot Movement of a Low-Pressure Arc for Removing Oxide Layer

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