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This article is cited in 1 scientific paper (total in 1 paper)
Solids
Spalling in sapphire in different crystallographic directions under shock compression
I. A. Cherepanovab, A. S. Savinykha, S. V. Razorenovab a Institute of Problems of Chemical Physics, Russian Academy of Sciences, Chernogolovka, Moscow region
b Lomonosov Moscow State University
Abstract:
The tensile strength of single-crystal sapphire specimens with $c$, $a$, $d$, $r$, $n$, $s$, $g$, and m crystallographic orientations ($c$-, $a$-, $d$-, $r$-, $n$-, $s$-, $g$-, and $m$-axis specimens) has been measured under shock compression in the stress range of 15 – 20 GPa. It has been found that the spall strength depends on shock direction and maximum compression strength. The spall strength is greatest, $\sim$ 12 – 13 GPa, in $m$- and $a$-axis sapphire specimens when the maximum shock stress equals 16 GPa.
Keywords:
sapphire crystals, spall strength, shock waves.
Received: 19.11.2019 Revised: 19.11.2019 Accepted: 26.12.2019
Citation:
I. A. Cherepanov, A. S. Savinykh, S. V. Razorenov, “Spalling in sapphire in different crystallographic directions under shock compression”, Zhurnal Tekhnicheskoi Fiziki, 90:6 (2020), 961–964; Tech. Phys., 65:6 (2020), 921–924
Linking options:
https://www.mathnet.ru/eng/jtf5284 https://www.mathnet.ru/eng/jtf/v90/i6/p961
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