Experimental Study of the Formation of Threaded Structures and Properties Spheroplastics upon a Shock-Wave Impact
D. N. Sadovnichii1, Yu. M. Milekhin1, S. A. Malinin1, A. I. Potapenko2, A. A. Cheprunov2, R. V. Ul'yanenko2, K. Yu. Sheremet'ev1, N. V. Pertsev1, M. V. Markov3, E. B. Savenkov3
1Federal Center for Dual-Use Technologies "Soyuz", Dzerzhinsky, 140090 Russia
212 Central Research Institute of the Ministry of Defense of the Russian Federation, Sergiev Posad-7, 141307 Russia
3Keldysh Institute of Applied Mathematics, Russian Academy of Sciences, Moscow, 125047 Russia
Keywords: shock wave, spheroplastic, microspheres, glass spheres, nanowhiskers, dielectric properties, mechanical properties
Abstract
It is revealed by scanning electron microscopy that the formation of filamentous structures up to 10 μm in length long can be induced in spheroplastics based on organosilicon elastomer by a shock-wave pulse of microsecond duration. Threaded structures are formed on the surface of fractured microspheres. Their formation is facilitated by the metallization of the surface of glass spheres. The results of an experimental study of changes in the dielectric and mechanical characteristics of metallized spheroplastics, caused by impact-wave action, are presented. Possible reasons for the formation of threaded structures upon a shock-wave impact on spheroplasics are discussed.
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