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Dynamic high pressure phase transformation of ZrW2O8

Journal Article · · AIP Advances
DOI:https://doi.org/10.1063/5.0147942· OSTI ID:1984281

Phase transformations under high strain rates (dynamic compression) are examined in situ on ZrW2O8, a negative thermal expansion ternary ceramic displaying polymorphism. Amorphization, consistent with prior quasi-static measurements, was observed at a peak pressure of 3.0 GPa under dynamic conditions, which approximate those expected during fabrication. Evidence of partial amorphization was observed at lower pressure (1.8 GPa) that may be kinetically restrained by the short (<~150 ns) time scale of the applied high pressure. The impact of kinetics of pressure-induced amorphization from material fabrication methods is briefly discussed.

Research Organization:
Washington State University, Pullman, WA (United States); Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA), Office of Defense Programs (DP); USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities (SUF)
Grant/Contract Number:
NA0003525; NA0003957; AC02-06CH11357
OSTI ID:
1984281
Alternate ID(s):
OSTI ID: 2311596
Journal Information:
AIP Advances, Journal Name: AIP Advances Journal Issue: 6 Vol. 13; ISSN 2158-3226
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English

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