Affordable Access

Publisher Website

On the variety of cathode craters of vacuum arcs, and the influence of the cathode temperature

Authors
Journal
Physica B+C
0378-4363
Publisher
Elsevier
Publication Date
Volume
114
Issue
2
Identifiers
DOI: 10.1016/0378-4363(82)90045-6

Abstract

Abstract Cathode craters of 50 A arcs have been investigated with surfaces of reproducible definition. It was found, under constant external conditions, that the occurrence of various crater types is a secondary effect due to the surface state, and not a primary property of the arc. At high temperatures (up to 2500 K) the cathode mechanism is not essentially changed, but the crater size increases. This increase can be interpreted by the model of ion-impact heating. The occurrence of large craters at high temperatures explains the enhanced cathode erosion at high surface load as well as the production of large droplets.

There are no comments yet on this publication. Be the first to share your thoughts.