Average current per vacuum-arc cathode spot and spot velocity in a magnetic field on a CuCr50/50 nanocomposite |
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| Authors: | K. K. Zabello I. N. Poluyanova V. V. Yakovlev S. M. Shkol’nik |
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| Affiliation: | 1.Ioffe Physical Technical Institute,Russian Academy of Sciences,St. Petersburg,Russia;2.Tavrida Electric Group,Moscow,Russia;3.St. Petersburg State University,St. Petersburg,Russia |
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| Abstract: | It has been shown that such cathode spot characteristics as the average current per spot and its dependence on tangential magnetic-field induction B t and the spot velocity and its dependence on B t for two CuCr50/50 specimens with very different structures (nanocomposite and “solid-state sintered” composite) almost coincide if the surface of contacts has been totally remelted before measurements with the use of moderate arc currents in the process of conditioning. |
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