skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Ultrahigh pressure equation of state of tantalum to 310 GPa

Journal Article · · High Pressure Research
 [1];  [1]; ORCiD logo [2]; ORCiD logo [2]; ORCiD logo [2];  [3];  [4];  [1]
  1. Univ. of Alabama, Birmingham, AL (United States)
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  3. Argonne National Lab. (ANL), Argonne, IL (United States)
  4. Argonne National Lab. (ANL), Argonne, IL (United States); Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
+ Show Author Affiliations

The isothermal compression of transition metal tantalum (Ta) was studied in a diamond anvil cell by x-ray diffraction utilizing rhenium (Re) and gold (Au) as internal x-ray pressure standards. The Re pressure marker was employed during non-hydrostatic compression to pressures up to 310 GPa while the Au pressure marker was used during quasi-hydrostatic compression in a neon pressuretransmitting medium to 80 GPa. Two ultra-high pressure experiments were conducted on Ta and Re mixtures utilizing focused-ion beam machined toroidal diamond anvils with central flats varying from 8 microns to 16 microns in diameter. The Ta metal was observed to be stable in the body-centered-cubic phase to a volume compression V/V0 = 0.581. The measured equations of state (EOS) of Ta using two different calibrations of the Re pressure marker are compared with the ambient temperature isotherm derived from shock compression data. We provide a detailed analysis of EOS fit parameters for Ta under quasi-hydrostatic and non-hydrostatic conditions.

Research Organization:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA); USDOE Office of Science (SC), Basic Energy Sciences (BES); National Science Foundation (NSF)
Grant/Contract Number:
89233218CNA000001; AC52-07NA27344; AC02-06CH11357
OSTI ID:
1558979
Alternate ID(s):
OSTI ID: 1562310; OSTI ID: 1824752
Report Number(s):
LA-UR-19-25301; LLNL-JRNL-820684; TRN: US2000272
Journal Information:
High Pressure Research, Vol. 39, Issue 3; ISSN 0895-7959
Publisher:
Taylor & FrancisCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 8 works
Citation information provided by
Web of Science

References (19)

Equation of state of rhenium and application for ultra high pressure calibration journal January 2014
Mechanical properties of tantalum under high pressure journal October 2005
Single crystal toroidal diamond anvils for high pressure experiments beyond 5 megabar journal September 2018
Equations of state of MgO, Au, Pt, NaCl-B1, and NaCl-B2: Internally consistent high-temperature pressure scales journal December 2007
Refinement of the equation of state of tantalum journal March 2004
Pressure derivatives of the elastic moduli of niobium and tantalum journal February 1976
Rapid Growth of Nanocrystalline Diamond on Single Crystal Diamond for Studies on Materials under Extreme Conditions journal January 2018
DIOPTAS : a program for reduction of two-dimensional X-ray diffraction data and data exploration journal May 2015
High pressure generation using double-stage diamond anvil technique: problems and equations of state of rhenium journal March 2018
High-pressure generation using double stage micro-paired diamond anvils shaped by focused ion beam journal March 2015
The most incompressible metal osmium at static pressures above 750 gigapascals journal August 2015
Toroidal diamond anvil cell for detailed measurements under extreme static pressures journal July 2018
Terapascal static pressure generation with ultrahigh yield strength nanodiamond journal July 2016
High pressure studies using two-stage diamond micro-anvils grown by chemical vapor deposition journal May 2015
GSAS-II : the genesis of a modern open-source all purpose crystallography software package journal March 2013
Implementation of micro-ball nanodiamond anvils for high-pressure studies above 6 Mbar journal January 2012
Pressure, stress, and strain distribution in the double-stage diamond anvil cell journal July 2015
Compressibility of solids journal January 1987
Equation of state of tantalum to 174 GPa journal April 1999

Figures / Tables (8)

Table 1(p. 11)table Table 1
Figure 1(p. 13)figure Figure 1
Figure 2(p. 14)figure Figure 2
Figure 3(p. 15)figure Figure 3
Figure 4(p. 16)figure Figure 4
Figure 5(p. 17)figure Figure 5
Figure 6(p. 18)figure Figure 6
Figure 7(p. 19)figure Figure 7

Similar Records

Experimental and Computational Studies on Superhard Material Rhenium Diboride under Ultrahigh Pressures
Journal Article · Fri Apr 03 00:00:00 EDT 2020 · Materials · OSTI ID:1558979
+2 more
Compression of single-crystal magnesium oxide to 118 GPa and a ruby pressure gauge for helium pressure media
Journal Article · Thu Nov 13 00:00:00 EST 2008 · Am. Mineral. · OSTI ID:1558979
+7 more
Pressure-induced stiffness of Au nanoparticles to 71 GPa under quasi-hydrostatic loading
Journal Article · Mon Nov 16 00:00:00 EST 2015 · Journal of Physics. Condensed Matter · OSTI ID:1558979
+1 more

Related Subjects

36 MATERIALS SCIENCE
Tantalum
high-pressure
equation of state
diamond-anvil cell
X-ray diffraction
toroidal diamond anvils
transition metals
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY