Thermal Plasma of Electric Arc Discharge Between Composite Cu-Cr Electrsodes: Optical Emission and Electrode Surface Interaction

Authors

  • A. Murmantsev Faculty of Radiophysics, Electronics and Computer Systems of Taras Shevchenko National University of Kyiv
  • A. Veklich Taras Shevchenko National University of Kyiv, 64/13, Volodymyrska Street, City of Kyiv, Ukraine, 01601
  • V. Boretskij Taras Shevchenko National University of Kyiv, 64/13, Volodymyrska Street, City of Kyiv, Ukraine, 01601
  • M. Bartlová Faculty of Electrical Engineering and Communication, Brno University of Technology, Technicka 10, 616 00 Brno, Czech Republic
  • L. Dostál Faculty of Electrical Engineering and Communication, Brno University of Technology, Technicka 10, 616 00 Brno, Czech Republic
  • J. Píška Faculty of Electrical Engineering and Communication, Brno University of Technology, Technicka 10, 616 00 Brno, Czech Republic
  • D. Šimek Faculty of Electrical Engineering and Communication, Brno University of Technology, Technicka 10, 616 00 Brno, Czech Republic
  • A. Gajdos Faculty of Electrical Engineering and Communication, Brno University of Technology, Technicka 10, 616 00 Brno, Czech Republic
  • O. Tolochyn Frantsevich Institute for Problems of Materials Science NAS of Ukraine, 3, Krzhizhanovsky str., Kyiv, Ukraine, 03142

DOI:

https://doi.org/10.14311/ppt.2020.2.43

Keywords:

composite electrodes, spectroscopy, microscopy, arc dicharge, copper, chromium.

Abstract

This work deals with investigations of thermal plasma of electric arc discharge between sintered composite Cu-Cr electrodes, which can be used in electrical contacts of vacuum circuit breakers. Breaking arcs between composite Cu-Cr as well as single-component copper electrodes were used to study the electrical properties, plasma optical emission and electrodes surface modification behavior. In particular, the temporal evolution of plasma emission spectra of electric breaking arcs in air atmosphere was investigated by Optical Emission Spectroscopy (OES). Scanning Electron Microscopy (SEM) with Energy-dispersive X-ray Spectroscopy (EDXS) were applied to analyze the cross-section of working layer of electrodes surface modified by the heat flux from the discharge.

References

P. G. Slade. Electrical contacts, principles and applications. CRC Press, 2014.

A. Papillon, J. Missiaen, J. Chaix, S. Roure, and H. Schellekens. Sintering mechanisms of Cu-Cr metallic composites. Int. Journal of Refractory Metals and Hard Materials, 65:9–13, 2016. doi:http://dx.doi.org/10.1016/j.ijrmhm.2016.11.010.

R. Methling, S. Gorchakov, M. Lisnyak, S. Franke, A. Khakpour, S. Popov, A. Batrakov, D. Uhrlandt, and K. Weltmann. Spectroscopic investigation of a Cu-Cr vacuum arc. IEEE Transactions on plasma science, 43(8):2303–2309, 2015. doi:10.1109/TPS.2015.2443856.

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Published

2020-12-19

Issue

Vol. 7 No. 2 (2020)

Section

Articles

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