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Title: Flash melting of tantalum in a diamond cell to 85 GPa

Journal Article · · Physical Review B
 [1];  [2]
  1. Carnegie Inst. of Washington, Argonne, IL (United States). Geophysical Lab.; Goethe Univ., Frankfurt (Germany). Inst of Geoscienes
  2. Carnegie Inst. of Washington, Argonne, IL (United States). Geophysical Lab.
+ Show Author Affiliations

Here, we demonstrate a new level of precision in measuring melting temperatures at high pressure using laser flash-heating followed by Scanning Electron Microscopy and Focused Ion Beam Milling. Furthermore, the new measurements on tantalum put unprecedented constraints on its highly debated melting slope, calling for a reevaluation of theoretical, shock compression and diamond cell approaches to determine melting at high pressure. X-ray analysis of the recovered samples confirmed the absence of chemical reactions, which likely played a significant role in previous experiments.

Research Organization:
Carnegie Inst. of Science, Argonne, IL (United States); Energy Frontier Research Centers (EFRC) (United States). Energy Frontier Research in Extreme Environments (EFree)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA); USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
NA0002006; SC0001057
OSTI ID:
1379166
Alternate ID(s):
OSTI ID: 1237508
Journal Information:
Physical Review B, Vol. 93, Issue 5; ISSN 2469-9950
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 18 works
Citation information provided by
Web of Science

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Cited By (2)

Finite element modeling of melting and fluid flow in the laser-heated diamond-anvil cell journal April 2017
Melting of bcc crystal Ta without the Lindemann criterion journal January 2019

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36 MATERIALS SCIENCE