Structure of Shock Wave in Nanoscale Porous Nickel at Pressures up to 7 GPa.

Autor: Dolgoborodov A; Joint Institute for High Temperatures, Russian Academy of Sciences, Izhorskaya 13 Bd. 2, 125412 Moscow, Russia.; N. Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences, Kosygin St. 4, 119991 Moscow, Russia., Rostilov T; Joint Institute for High Temperatures, Russian Academy of Sciences, Izhorskaya 13 Bd. 2, 125412 Moscow, Russia., Ananev S; Joint Institute for High Temperatures, Russian Academy of Sciences, Izhorskaya 13 Bd. 2, 125412 Moscow, Russia., Ziborov V; Joint Institute for High Temperatures, Russian Academy of Sciences, Izhorskaya 13 Bd. 2, 125412 Moscow, Russia., Grishin L; Joint Institute for High Temperatures, Russian Academy of Sciences, Izhorskaya 13 Bd. 2, 125412 Moscow, Russia., Kuskov M; N. Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences, Kosygin St. 4, 119991 Moscow, Russia., Zhigach A; N. Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences, Kosygin St. 4, 119991 Moscow, Russia.
Jazyk: angličtina
Zdroj: Materials (Basel, Switzerland) [Materials (Basel)] 2022 Nov 29; Vol. 15 (23). Date of Electronic Publication: 2022 Nov 29.
DOI: 10.3390/ma15238501
Abstrakt: The structure of shock waves in pressed porous samples of nickel nanoparticles was investigated in a series of uniaxial planar plate impact experiments in the pressure range of 1.6-7.1 GPa. The initial porosity of the samples was about 50%. Wave profiles were obtained using laser velocimetry techniques. The nanomaterial demonstrated a complex response to shock loading including the development of a two-wave structure associated with precursor and compaction waves. The effect on profiles and measurements of the observed precursor reverberations propagating between the front of a compaction wave and a monitored sample surface was described. The obtained wave profiles were used to estimate the thicknesses of precursor and compaction wave fronts.
Databáze: MEDLINE
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