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Peak states of molybdenum single crystals shock compressed to high stresses

Oniyama, Tomoyuki and Gupta, Yogendra M. and Ravichandran, Guruswami (2021) Peak states of molybdenum single crystals shock compressed to high stresses. Journal of Applied Physics, 129 (24). Art. No. 245906. ISSN 0021-8979. doi:10.1063/5.0054395.

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To determine crystal anisotropy effects at high stresses, peak states behind the plastic shock waves were examined in BCC single crystals. Using plate impact experiments, molybdenum (Mo) single crystals were shock compressed up to 190 GPa elastic impact stress along [100], [110], and [111] orientations. Laser interferometry was used to measure wave velocities and particle velocity profiles at the Mo–LiF window interface. These data were analyzed to obtain in-material quantities in the peak states. The Hugoniots for [100] and [110] orientations were comparable, but the Hugoniot for the [111] orientation was different from the other two orientations. Also, these Mo single crystal Hugoniots display differences from the polycrystalline Mo Hugoniots. Although none of the differences can be considered large, the present results demonstrate that, unlike FCC metal single crystals (Cu, Al), some anisotropy is preserved in Mo single crystal Hugoniots even at high stresses.

Item Type:Article
Related URLs:
URLURL TypeDescription
Oniyama, Tomoyuki0000-0001-6097-9917
Gupta, Yogendra M.0000-0002-2669-3015
Ravichandran, Guruswami0000-0002-2912-0001
Additional Information:© 2021 Author(s). Published under an exclusive license by AIP Publishing. Submitted: 17 April 2021 · Accepted: 9 June 2021 · Published Online: 30 June 2021. We would like to thank Nate Arganbright, Kurt Zimmerman, and Yoshi Toyoda for their help with designing and conducting experiments. We would also like to thank Dr. Michael Winey for his help obtaining known Hugoniot relations and for useful discussions. This work was supported by DOE/NNSA Award No. DE-NA0002007, which is gratefully acknowledged. DATA AVAILABILITY. The data that support the findings of this study are available within this article and Ref. 16.
Funding AgencyGrant Number
Department of Energy (DOE)DE-NA0002007
Issue or Number:24
Record Number:CaltechAUTHORS:20210709-212643165
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:109765
Deposited By: George Porter
Deposited On:09 Jul 2021 21:48
Last Modified:05 Jul 2022 16:40

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