Sliding wear behavior of copper alloy impregnated C/C composites under an electrical current

Kubota, Yoshitaka; Nagasaka, Sei; Miyauchi, Toru; Yamashita, Chikara; Kakishima, Hideshi

doi:10.1016/j.wear.2012.11.029

Cited by 79 publications

(27 citation statements)

References 16 publications

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“…The contribution related to the Joule effect increases with the electrical current raised to the second power and it is proportional to the electrical contact resistance, which depends on the contact force. In particular, the expression that provides the electrical contact resistance R c as a function of the contact force F m for the couple "pure copper contact wireKasperovski contact strip" was obtained by a previous experimental campaign on the test rig described in section 2 and deeply discussed in [14]. For the sake of completeness, in the equation (3) Finally, the contribution to the wear due to the electrical arcs is proportional to the power generated by the arcs.…”

Section: The Proposed Wear Model For the Pure Copper Contact Wirementioning

confidence: 99%

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Electromechanical interaction between carbon-based pantograph strip and copper contact wire: A heuristic wear model

Bucca

Collina

2015

Tribology International

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Main contributions to the wear in the sliding contact between pantograph's strip and catenary's wire can be classified as: i) mechanical contribution, due to friction, ii) electrical contribution, due to current flow at the contact and iii) electrical arcs contribution related to power dissipated during arc generation. In this work, a heuristic wear model for the contact wire, which accounts for the mentioned three main contributions to the wear, is presented. After a tuning phase with results obtained by an experimental campaign aimed at evaluating the wear for the couple "pure copper contact wire -Kasperovski contact strip", the wear model is used in combination with a dynamical electromechanical model able to reproduce the electromechanical pantograph-catenary interaction.Suggested Reviewers: Takayuki Usuda Railway Technical Research Institute usuda@rtri.or.jp Dr Usuda is senior researcher on the interaction between pantograph and catenary and on related problems.Rafael Manory M&H Materials Pty Ltd rmanory@kuee.kyoto-u.ac.jp Dr Manory studies problems related to the interaction between pantograph and catenary, to the sliding wear, to the electromechanical contacts and to the wear tests for copper and graphite materials.Guangxiong Chen Southwest Jiaotong University, State Key Laboratory of Traction Power, Chengdu, China chen_guangx@163.com Author of different works on electromechanical problems related to pantograph-catenary interaction.Dear Tribology International Editors, we would like to submit the present paper titled " Electromechanical interaction between carbon based pantograph strip and copper contact wire: a heuristic wear model" for a possible publication on your review.The paper deals with a heuristic wear model, tuned using results obtained by a laboratory campaign on the couple "pure copper contact wire -Kasperovski contact strip", which is used in combination with a dynamical electromechanical model able to reproduce the electromechanical pantographcatenary interaction. This procedure try to reproduce the real conditions that cause the wire's wear evolution.The practical application of the presented procedure can be useful to estimate the maintenance costs related to the wear of contact wire and to assess the effective benefit of proposed innovative solutions for pantographs and catenaries.Best Regards, Giuseppe Bucca, Andrea Collina giuseppe.bucca@polimi.it Cover Letter I confirm that this paper is original and it has not been published previously and it is not under consideration elsewhere.Giuseppe Bucca, on behalf of all authors *Statement of OriginalityMain contributions to the wear in the sliding contact between pantograph's strip and catenary's wire can be classified as: i) mechanical contribution, due to friction, ii) electrical contribution, due to current flow at the contact and iii) electrical arcs contribution related to power dissipated during arc generation. In this work, a heuristic wear model for the contact wire, which accounts for the three main contributions to the wea...

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Section: The Proposed Wear Model For the Pure Copper Contact Wirementioning

confidence: 99%

“…Investigations have been and are being carried out ( [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17]) concerning the wear behaviour during strip and wire interaction and the development of materials for both strip and wire in order to enable the current collection keeping acceptable wear rate of the two contacting elements.…”

Section: Introductionmentioning

confidence: 99%

Electromechanical interaction between carbon-based pantograph strip and copper contact wire: A heuristic wear model

Bucca

Collina

2015

Tribology International

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“…Therefore, the working condition of the pantograph-catenary system of the high-speed railway is very poor, which leads to high wear losses of the contact strip and contact wire. These are affected by many factors, which include the material characteristics of the contact strip and wire, sliding speed, contact force, electric current and staggering of the contact wire [1][2][3][4][5][6]. In the literature, effects of the material characteristics, sliding speed, contact force and electric current on wear of the contact strip and wire were studied [7][8][9][10][11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Effect of the Staggering of a Contact Wire on Wear Behaviour of the Contact Strip with Electric Current

Chen¹

2017

J Robot Mech Eng Resr

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Several experimental tests on the effect of the staggering on wear of the contact strip with electrical current are performed on a block-on-ring type tester. During testing, the electric current and voltage of arc discharge, temperature and wear loss of the contact strip are collected. The topography of the worn surface is observed. Results show that the staggering has a large effect on the wear of the contact strip. The wear rate of the contact strip without staggering is less than those with the staggering values of 35-55 mm. The temperature of the contact strip decreases but the arc discharge energy increases with increasing staggering value. Thermal wear and arc erosion are two main mechanisms for the wear of the contact strip.

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“…Two main challenges of these applications are to minimize both arc discharge (which occurs when contact is lost between the two conductors, due to the mechanical separation) and thermal wear [1,2]. In the past decades, pure metal, pure carbon, powder metallurgy composites and metalimpregnated carbon have been successively studied to address these challenges [3][4][5][6][7][8][9][10]. However, there are still many disadvantages for those materials in practical applications.…”

Section: Introductionmentioning

confidence: 99%

“…Powder metallurgy composites (such as copper-graphite composites [7]) usually undergo heave wear, and are relatively expensive. Metal-impregnated carbon has been shown to be an excellent material for use as pantograph contact strips, but the disadvantages of this material are its weak impact resistance and high maintenance costs [6]. As none of these materials are ideal, the development of new sliding electrical contact materials is desirable.…”

Section: Introductionmentioning

confidence: 99%

Electrical conductivity and wear behavior of bi-continuous Cr3C2–Cu composites

Zhang

Elias

Chen

et al. 2015

Ceramics International

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Sliding wear behavior of copper alloy impregnated C/C composites under an electrical current

Cited by 79 publications

References 16 publications

Electromechanical interaction between carbon-based pantograph strip and copper contact wire: A heuristic wear model

Electromechanical interaction between carbon-based pantograph strip and copper contact wire: A heuristic wear model

Effect of the Staggering of a Contact Wire on Wear Behaviour of the Contact Strip with Electric Current

Electrical conductivity and wear behavior of bi-continuous Cr3C2–Cu composites

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