Electrical Resistance of Copper under Shock Compression: Experimental Data
S. D. Gilev, V. S. Prokop’ev
Lavrentyev Institute of Hydrodynamics, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090 Russia
Keywords: электросопротивление, электропроводность, медь, ударное сжатие, высокая плотность энергии, высокое давление, electrical resistance, electrical conductivity, copper, shock compression, high energy density, high pressure
Abstract
The electrical resistance of copper foil under shock compression is measured. The electrical resistance and electrical conductivity are plotted as functions of the shock pressure in the interval up to 20 GPa. These dependences are monotonic and have no visible inflections or singularities. A qualitative dependence of the electrical resistance of the metal on the shock impedance of the material of the block containing the sample is found. A comparison of the data obtained in this study with results of other authors shows that it is important to take into account the block material, the shape and thickness of the sample, and the procedure of determining the state of the sample.
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