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

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 language	English
Pages (from-to)	3114-3120
Number of pages	7
Journal	Materials Today: Proceedings
Volume	3
Issue number	9
DOIs	https://doi.org/10.1016/j.matpr.2016.09.027
Publication status	Published - 2016
Event	Conference on Advances in Refractory and Reactive Metals and Alloys, ARRMA 2016 - Anushaktinagar, Mumbai, India Duration: 27 Jan 2016 → 29 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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10.1016/j.matpr.2016.09.027

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

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.",

keywords = "Alloy, conductor, current density, Model of the conductivity layer, Particle, Sliding contact",

author = "Vera Deeva and Stepan Slobodyan and Martik Martikyan",

year = "2016",

doi = "10.1016/j.matpr.2016.09.027",

language = "English",

volume = "3",

pages = "3114--3120",

journal = "Materials Today: Proceedings",

issn = "2214-7853",

publisher = "Elsevier Limited",

number = "9",

note = "Conference on Advances in Refractory and Reactive Metals and Alloys, ARRMA 2016 ; Conference date: 27-01-2016 Through 29-01-2016",

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TY - JOUR

T1 - Physical model of the sliding contact of conductors of the alloy Cu-Zr and Cu-Re under high current density

AU - Deeva, Vera

AU - Slobodyan, Stepan

AU - Martikyan, Martik

PY - 2016

Y1 - 2016

N2 - 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.

AB - 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.

KW - Alloy

KW - conductor

KW - current density

KW - Model of the conductivity layer

KW - Particle

KW - Sliding contact

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JO - Materials Today: Proceedings

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SN - 2214-7853

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T2 - Conference on Advances in Refractory and Reactive Metals and Alloys, ARRMA 2016

Y2 - 27 January 2016 through 29 January 2016