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Microstructure of Contact Material Modified by High-Current Vacuum Arc

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Russian Physics Journal Aims and scope

The paper presents research results into the microstructure of Cu–Cr composite material affected by the highcurrent vacuum arc. The investigation of the electrode cross-sections allows us to emphasize two zones both for anode and cathode: 1) the exposure zone of the vacuum arc and 2) the virgin material. The first zone locates on the surface of electrodes and is just a zone that crystallizes after the electrode melting due to the exposure to the high-current vacuum arc. It is interesting that on anode there appears a narrow, transition layer enriched with chromium nearby the virgin material and with copper in the exposure zone of the vacuum arc. The formation of such a layer on cathode is not observed.

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Authors and Affiliations

  1. The Institute of High Current Electronics of the Siberian Branch of the Russian Academy of Sciences, Tomsk, Russia

    E. V. Yakovlev, A. V. Schneider, E. L. Dubrovskaya & S. A. Popov

Authors
  1. E. V. Yakovlev
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  2. A. V. Schneider
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  3. E. L. Dubrovskaya
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  4. S. A. Popov
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Corresponding author

Correspondence to E. V. Yakovlev.

Additional information

Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 6, pp. 30–33, June, 2018.

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Yakovlev, E.V., Schneider, A.V., Dubrovskaya, E.L. et al. Microstructure of Contact Material Modified by High-Current Vacuum Arc. Russ Phys J 61, 1034–1038 (2018). https://doi.org/10.1007/s11182-018-1493-4

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  • DOI: https://doi.org/10.1007/s11182-018-1493-4

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