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Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki, 2015, Volume 101, Issue 4, Pages 294–299 DOI: https://doi.org/10.7868/S0370274X15040128
(Mi jetpl4561)
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This article is cited in 55 scientific papers (total in 55 papers)
MISCELLANEOUS
Mechanical and optical properties of vanadium under shock picosecond loads
S. I. Ashitkov, P. S. Komarov, E. V. Struleva, M. B. Agranat, G. I. Kanel Joint Institute for High Temperatures, Russian Academy of Sciences, ul. Izhorskaya 13/19, Moscow, 125412, Russia
DOI:
https://doi.org/10.7868/S0370274X15040128
Abstract:
The evolution of compression pulses generated by a femtosecond laser in micron-thick vanadium film samples has been studied by the interferometric method with continuous recording of motion in the picosecond range. The relation of the velocity of a shock wave and the particle velocity behind its front indicates the elastic character of shock compression at pressures up to $46$ GPa, for which the shear stress is $15.8$ GPa. The measured spall strength reaches $21.8$ GPa at a strain rate of ${\sim}\,10^9\,$s$^{-1}$. The picosecond dynamics of the reflection coefficient of vanadium, which indicates the excitation of its electronic subsystem under “cold” compression by an ultrashort shock wave, has been detected.
Received: 10.12.2014
Citation:
S. I. Ashitkov, P. S. Komarov, E. V. Struleva, M. B. Agranat, G. I. Kanel, “Mechanical and optical properties of vanadium under shock picosecond loads”, Pis'ma v Zh. Èksper. Teoret. Fiz., 101:4 (2015), 294–299; JETP Letters, 101:4 (2015), 276–281
Linking options:
https://www.mathnet.ru/eng/jetpl4561 https://www.mathnet.ru/eng/jetpl/v101/i4/p294
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