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Type: Artigo de periódico
Title: The influence of the arc current on the cold electrode erosion
Author: Essiptchouk, AM
Marotta, A
Sharakhovsky, LI
Abstract: A study of copper cathode erosion in a magnetically driven arc setup, as a function of arc current, is reported. The experiments showed the presence of two different erosion regimes. In the low current micro-erosion regime, erosion slowly rises with arc current. Then, at a certain critical current, macro-erosion begins, and has a strong dependence of erosion on current. It was shown that the critical current for transition from micro- to macro-erosion is a linearly decreasing function of the applied magnetic field. The erosion versus current behavior is shown to be explained by a recently published thermal model. (C) 2003 American Institute of Physics.
Country: EUA
Editor: Amer Inst Physics
Rights: aberto
Identifier DOI: 10.1063/1.1599856
Date Issue: 2003
Appears in Collections:Unicamp - Artigos e Outros Documentos

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