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Title: Measurement of Body-Centered-Cubic Aluminum at 475 GPa [Observation of Body-Centered-Cubic Aluminum at 475 GPa]

Abstract

Nanosecond in situ x-ray diffraction and simultaneous velocimetry measurements were used to determine the crystal structure and pressure, respectively, of ramp compressed aluminum at stress states between 111 and 475 GPa. The solid-solid Al phase transformations, fcc-hcp and hcp-bcc, are observed at 216 ± 9 GPa and 321 ± 12 GPa, respectively, with the bcc phase persisting to 475 GPa. Here, this is the first in situ observation of the high-pressure bcc phase of Al. High-pressure texture of the hcp and bcc phases suggests close-packed or nearly close-packed lattice planes remain parallel through both transformations.

Authors:
 [1];  [2];  [1];  [2];  [2];  [2];  [2];  [1];  [1];  [2];  [2];  [2];  [2];  [3];  [3];  [3];  [1];  [1];  [1]
  1. Univ. of Rochester, Rochester, NY (United States)
  2. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  3. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Publication Date:
Research Org.:
Univ. of Rochester, Rochester, NY (United States). Lab. for Laser Energetics
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1405327
Report Number(s):
2017-4, 1356
Journal ID: ISSN 0031-9007; PRLTAO; 2017-4, 2311, 1356; TRN: US1702898
Grant/Contract Number:
NA0001944; AC52-07NA27344
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 119; Journal Issue: 17; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats

Polsin, D. N., Fratanduono, D. E., Rygg, J. R., Lazicki, A., Smith, R. F., Eggert, J. H., Gregor, M. C., Henderson, B. H., Delettrez, J. A., Kraus, R. G., Celliers, P. M., Coppari, F., Swift, D. C., McCoy, C. A., Seagle, C. T., Davis, J. -P., Burns, S. J., Collins, G. W., and Boehly, T. R. Measurement of Body-Centered-Cubic Aluminum at 475 GPa [Observation of Body-Centered-Cubic Aluminum at 475 GPa]. United States: N. p., 2017. Web. doi:10.1103/PhysRevLett.119.175702.
Polsin, D. N., Fratanduono, D. E., Rygg, J. R., Lazicki, A., Smith, R. F., Eggert, J. H., Gregor, M. C., Henderson, B. H., Delettrez, J. A., Kraus, R. G., Celliers, P. M., Coppari, F., Swift, D. C., McCoy, C. A., Seagle, C. T., Davis, J. -P., Burns, S. J., Collins, G. W., & Boehly, T. R. Measurement of Body-Centered-Cubic Aluminum at 475 GPa [Observation of Body-Centered-Cubic Aluminum at 475 GPa]. United States. doi:10.1103/PhysRevLett.119.175702.
Polsin, D. N., Fratanduono, D. E., Rygg, J. R., Lazicki, A., Smith, R. F., Eggert, J. H., Gregor, M. C., Henderson, B. H., Delettrez, J. A., Kraus, R. G., Celliers, P. M., Coppari, F., Swift, D. C., McCoy, C. A., Seagle, C. T., Davis, J. -P., Burns, S. J., Collins, G. W., and Boehly, T. R. 2017. "Measurement of Body-Centered-Cubic Aluminum at 475 GPa [Observation of Body-Centered-Cubic Aluminum at 475 GPa]". United States. doi:10.1103/PhysRevLett.119.175702.
@article{osti_1405327,
title = {Measurement of Body-Centered-Cubic Aluminum at 475 GPa [Observation of Body-Centered-Cubic Aluminum at 475 GPa]},
author = {Polsin, D. N. and Fratanduono, D. E. and Rygg, J. R. and Lazicki, A. and Smith, R. F. and Eggert, J. H. and Gregor, M. C. and Henderson, B. H. and Delettrez, J. A. and Kraus, R. G. and Celliers, P. M. and Coppari, F. and Swift, D. C. and McCoy, C. A. and Seagle, C. T. and Davis, J. -P. and Burns, S. J. and Collins, G. W. and Boehly, T. R.},
abstractNote = {Nanosecond in situ x-ray diffraction and simultaneous velocimetry measurements were used to determine the crystal structure and pressure, respectively, of ramp compressed aluminum at stress states between 111 and 475 GPa. The solid-solid Al phase transformations, fcc-hcp and hcp-bcc, are observed at 216 ± 9 GPa and 321 ± 12 GPa, respectively, with the bcc phase persisting to 475 GPa. Here, this is the first in situ observation of the high-pressure bcc phase of Al. High-pressure texture of the hcp and bcc phases suggests close-packed or nearly close-packed lattice planes remain parallel through both transformations.},
doi = {10.1103/PhysRevLett.119.175702},
journal = {Physical Review Letters},
number = 17,
volume = 119,
place = {United States},
year = 2017,
month =
}

Journal Article:
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  • The deposition of thin alternating layers of Cu and Nb on Si(100) substrates has been studied by transmission electron microscopy as a function of layer thickness. For layer thickness above 25 {Angstrom}, there is a strong texture orientation relationship with the close packed planes of fcc Cu parallel to close packed planes of bcc Nb, forming the so-called {open_quotes}Kurdjumov-Sachs{close_quotes} orientation relationship. However, at thicknesses of under 12 {Angstrom}, the Cu is constrained to grow as a slightly distorted bcc structure. It is thought that, when it reaches a critical thickness between 12 and 20 {Angstrom}, the bcc Cu loses coherencymore » and transforms martensitically to the fcc phase, resulting in the observed Kurdjumov{endash}Sachs orientation relationship. Electron energy loss spectroscopy observations indicate a difference of 2 eV in the L{sub 3} edge suggesting that the Fermi energy is lower in the constrained bcc form of Cu than in the equilibrium fcc structure. {copyright} {ital 1997 American Institute of Physics.}« less
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