Physical model of the sliding contact of conductors of the alloy Cu-Zr and Cu-Re under high current density

Vera Deeva, Stepan Slobodyan, Martik Martikyan

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

The model of formation and dynamics of the sliding contact layer using hydrodynamic approach is suggested. This model is considered through the example of electrical slip brushes of high-Temperature (∼500°C) conductors Cu-Zr and Cu-Re sliding on the turbogenerator ring. In this study (a) the analysis of the geometry of the sliding layer forms by the particles breaking away from the brush surface and (b) the dependence of the contact layer deviation from the land contour, taking into account the Earth's gravity effect is carried out. The model shows the non-linear behavior of the friction coefficient and the current-voltage characteristics of the contact layer between electrical brushes of high-Temperature conductors Cu-Zr and Cu-Re and slip ring (collector) under the electric current of high density.

Original languageEnglish
Pages (from-to)3114-3120
Number of pages7
JournalMaterials Today: Proceedings
Volume3
Issue number9
DOIs
Publication statusPublished - 2016
EventConference on Advances in Refractory and Reactive Metals and Alloys, ARRMA 2016 - Anushaktinagar, Mumbai, India
Duration: 27 Jan 201629 Jan 2016

Keywords

  • Alloy
  • conductor
  • current density
  • Model of the conductivity layer
  • Particle
  • Sliding contact

ASJC Scopus subject areas

  • Materials Science(all)

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