What initiates the explosion of a current-carrying conductor? |
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| Authors: | Vorob’ev V. S. Malyshenko S. P. Tkachenko S. I. Fortov V. E. |
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| Affiliation: | (1) Institute of Thermal Physics of Extremal States, Russian Academy of Sciences, Moscow, 127412, Russia;(2) Institute of High Temperatures, Russian Academy of Sciences, Moscow, 127412, Russia |
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| Abstract: | It is shown that the explosion of a conductor heated by a high-power current pulse is initiated by the nuclei of liquid phase that appear in the layer of a supersaturated vapor surrounding the liquid current-carrying core. The instant of electric explosion and the expansion velocity predicted by this scenario are confirmed by the experimental and computational data on current-induced heating of a tungsten conductor. |
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