Univ. of Rochester, NY (United States). Lab. for Laser Energetics. Dept. of Physics and Astronomy; Laboratory for Laser Energetics, University of Rochester
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Univ. of Rochester, NY (United States). Lab. for Laser Energetics. Dept. of Physics and Astronomy. Dept. of Mechanical Engineering
Univ. of Rochester, NY (United States). Lab. for Laser Energetics. Dept. of Physics and Astronomy
Univ. of Rochester, NY (United States). Lab. for Laser Energetics. Dept. of Mechanical Engineering
Univ. of Rochester, NY (United States). Lab. for Laser Energetics
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Univ. of Rochester, NY (United States). Dept. of Mechanical Engineering
Here, we report on a series of experiments that use high-power lasers to ramp-compress aluminum (Al) up to 475 GPa. Under this quasi-isentropic compression, Al remains in the solid state and two solid–solid phase transformations are observed. In situ x-ray diffraction is performed to detect the crystal structure. A velocimetry diagnostic measures particle velocities in order to infer the pressure in the Al sample. We show that a solid–solid phase transition, consistent with a transformation to a hexagonal close-packed (hcp) structure, occurs at 216 ± 9 GPa. At higher pressures, a transformation to a structure consistent with the body-centered cubic (bcc) structure occurs at 321 ± 12 GPa. These phase transitions are also observed in 6061-O (annealed) Al alloy at 175 ± 9 GPa and 333 ± 11 GPa, respectively. Finally, correlations in the high-pressure crystallographic texture suggests the close-packed face-centered cubic (fcc) (111), hcp (002), and bcc (110) planes remain parallel through the solid–solid fcc–hcp and hcp–bcc transformations.
Polsin, D. N., et al. "X-ray diffraction of ramp-compressed aluminum to 475 GPa." Physics of Plasmas, vol. 25, no. 8, Aug. 2018. https://doi.org/10.1063/1.5032095
Polsin, D. N., Fratanduono, D. E., Rygg, J. R., Lazicki, A., Smith, R. F., Eggert, J. H., Gregor, M. C., Henderson, B. J., Gong, X., 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. (2018). X-ray diffraction of ramp-compressed aluminum to 475 GPa. Physics of Plasmas, 25(8). https://doi.org/10.1063/1.5032095
Polsin, D. N., Fratanduono, D. E., Rygg, J. R., et al., "X-ray diffraction of ramp-compressed aluminum to 475 GPa," Physics of Plasmas 25, no. 8 (2018), https://doi.org/10.1063/1.5032095
@article{osti_1476062,
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. J. and Gong, X. and Delettrez, J. A. and others},
title = {X-ray diffraction of ramp-compressed aluminum to 475 GPa},
annote = {Here, we report on a series of experiments that use high-power lasers to ramp-compress aluminum (Al) up to 475 GPa. Under this quasi-isentropic compression, Al remains in the solid state and two solid–solid phase transformations are observed. In situ x-ray diffraction is performed to detect the crystal structure. A velocimetry diagnostic measures particle velocities in order to infer the pressure in the Al sample. We show that a solid–solid phase transition, consistent with a transformation to a hexagonal close-packed (hcp) structure, occurs at 216 ± 9 GPa. At higher pressures, a transformation to a structure consistent with the body-centered cubic (bcc) structure occurs at 321 ± 12 GPa. These phase transitions are also observed in 6061-O (annealed) Al alloy at 175 ± 9 GPa and 333 ± 11 GPa, respectively. Finally, correlations in the high-pressure crystallographic texture suggests the close-packed face-centered cubic (fcc) (111), hcp (002), and bcc (110) planes remain parallel through the solid–solid fcc–hcp and hcp–bcc transformations.},
doi = {10.1063/1.5032095},
url = {https://www.osti.gov/biblio/1476062},
journal = {Physics of Plasmas},
issn = {ISSN 1070-664X},
number = {8},
volume = {25},
place = {United States},
publisher = {American Institute of Physics (AIP)},
year = {2018},
month = {08}}
Univ. of Rochester, NY (United States); Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
NA0001944; AC52-07NA27344; NA0003525
OSTI ID:
1476062
Alternate ID(s):
OSTI ID: 1769131 OSTI ID: 1464854
Journal Information:
Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 8 Vol. 25; ISSN 1070-664X
SHOCK COMPRESSION OF CONDENSED MATTER - 2003: Proceedings of the Conference of the American Physical Society Topical Group on Shock Compression of Condensed Matter, AIP Conference Proceedingshttps://doi.org/10.1063/1.1780457