Shock Recovery of High-Pressure Bismuth-II

Conference · Wed Aug 01 00:00:00 EDT 2018

OSTI ID:1461671

Hawkins, M. Cameron ^[1]; Fussell, Zachary ^[2]; Smith, Jesse ^[3]; Tschauner, Oliver ^[2]

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1. Mission Support and Test Services, LLC, Nevada National Security Site
2. University of Nevada, Las Vegas
3. High Pressure Collaborative Access Team, Advanced Photon Source, Geophysical Laboratory, Carnegie Institution of Washington

Between 0 and 10 GPa, there are nine different bismuth phases. Thermodynamically speaking, none of these phases are accessible at ambient conditions, and this inability to recover them has been confirmed over a number of experiments. Here, an impedance mismatched shockwave experiment provides a stepwise pressure release path; leading to the first recovery of high-pressure bismuth-II to ambient conditions, identified by synchrotron X-ray micro-diffraction. Our work shows shock-compression provides a means of recovering high-pressure phases that otherwise elude decompression.

• Research Organization: Nevada National Security Site (NNSS), North Las Vegas, NV (United States)
• Sponsoring Organization: USDOE National Nuclear Security Administration (NNSA), Office of Defense Programs (DP)
• DOE Contract Number: DE-NA0003624
• OSTI ID: 1461671
• Report Number(s): DOE/NV/03624-0208
• Resource Relation: Conference: 2018 Workshop of the International Union of Crystallography (IUCr) Commission on High Pressure, Honolulu, HI, July 29-August 2, 2018
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
hypervelocity impact
recovered Bismuth II