Microstructure of Bismuth after Shock-Wave Loading with Preliminary Heating and Detection of Melting at Pressures of 1.6-2.4 GPa
A. N. Balandina1, V. A. Burnashov1, A. V. Voronin1,2, S. Yu. Kalinkin1,2, A. L. Mikhailov1,2, A. M. Podurets1,2, V. G. Simakov1,2, I. A. Tereshkina1,2, M. I. Tkachenko1,2, I. R. Trunin1,2, E. E. Shestakov1,2
1Institute of Physics of Explosion, Russian Federal Nuclear Center - All-Russian Research Institute of Experimental Physics, Sarov, 607188 Russia
2Sarov Physical-Technical Institute - Branch of the National Research of the University, Sarov, 607186 Russia
Keywords: висмут, ударная волна, плавление, bismuth, shock wave, melting
Abstract
The structure of bismuth samples after shock-wave loading at pressures of 0.7-2.4 and 22-32 GPa was studied. Before loading, samples were at room temperature or heated to 230-240 oC. Loading by a pressure of 1.5-2 GPa at an initial temperature of 233-240 oC led to a structural change in bismuth, indicating melting of the sample in a shock wave. The time of shock-wave action was ≈0.7 μs.
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