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Title: Laser shocking of materials: Toward the national ignition facility

Abstract

In recent years a powerful experimental tool has been added to the arsenal at the disposal of the materials scientist investigating materials response at extreme regimes of strain rates, temperatures, and pressures: laser compression. In this paper, this technique has been applied successfully to mono-, poly-, and nanocrystalline metals and the results have been compared with predictions from analytical models and molecular dynamics simulations. Special flash x-ray radiography and flash x-ray diffraction, combined with laser shock propagation, are yielding the strength of metals at strain rates on the order of 10 7–10 8 s -1 and resolving details of the kinetics of phase transitions. A puzzling result is that experiments, analysis, and simulations predict dislocation densities that are off by orders of magnitude. Finally, other surprises undoubtedly await us as we explore even higher pressure/strain rate/temperature regimes enabled by the National Ignition Facility.

Authors:
 [1];  [2];  [3];  [3]
  1. Univ. of California, San Diego, CA (United States)
  2. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  3. National Univ. of Cuyo, Mendoza (Argentina)
Publication Date:
Research Org.:
Univ. of California, San Diego, CA (United States); National Univ. of Cuyo, Mendoza (Argentina)
Sponsoring Org.:
USDOE; LLNL Laboratory Directed Research and Development (LDRD) Program; Univ. of California (United States)
OSTI Identifier:
1424112
Report Number(s):
LLNL-JRNL-422897
Journal ID: ISSN 1047-4838; TRN: US1801907
Grant/Contract Number:  
AC52-07NA27344
Resource Type:
Accepted Manuscript
Journal Name:
JOM. Journal of the Minerals, Metals & Materials Society
Additional Journal Information:
Journal Volume: 62; Journal Issue: 1; Journal ID: ISSN 1047-4838
Publisher:
Springer
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 42 ENGINEERING; 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; phase transition; molecular dynamic; molecular dynamic simulation; dislocation density; dynamic simulation

Citation Formats

Meyers, M. A., Remington, B. A., Maddox, B., and Bringa, E. M. Laser shocking of materials: Toward the national ignition facility. United States: N. p., 2010. Web. doi:10.1007/s11837-010-0006-x.
Meyers, M. A., Remington, B. A., Maddox, B., & Bringa, E. M. Laser shocking of materials: Toward the national ignition facility. United States. doi:10.1007/s11837-010-0006-x.
Meyers, M. A., Remington, B. A., Maddox, B., and Bringa, E. M. Sat . "Laser shocking of materials: Toward the national ignition facility". United States. doi:10.1007/s11837-010-0006-x. https://www.osti.gov/servlets/purl/1424112.
@article{osti_1424112,
title = {Laser shocking of materials: Toward the national ignition facility},
author = {Meyers, M. A. and Remington, B. A. and Maddox, B. and Bringa, E. M.},
abstractNote = {In recent years a powerful experimental tool has been added to the arsenal at the disposal of the materials scientist investigating materials response at extreme regimes of strain rates, temperatures, and pressures: laser compression. In this paper, this technique has been applied successfully to mono-, poly-, and nanocrystalline metals and the results have been compared with predictions from analytical models and molecular dynamics simulations. Special flash x-ray radiography and flash x-ray diffraction, combined with laser shock propagation, are yielding the strength of metals at strain rates on the order of 107–108 s-1 and resolving details of the kinetics of phase transitions. A puzzling result is that experiments, analysis, and simulations predict dislocation densities that are off by orders of magnitude. Finally, other surprises undoubtedly await us as we explore even higher pressure/strain rate/temperature regimes enabled by the National Ignition Facility.},
doi = {10.1007/s11837-010-0006-x},
journal = {JOM. Journal of the Minerals, Metals & Materials Society},
number = 1,
volume = 62,
place = {United States},
year = {2010},
month = {1}
}

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Cited by: 9 works
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