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Title: The electro-thermal stability of tantalum relative to aluminum and titanium in cylindrical liner ablation experiments at 550 kA

Presented are the results from the liner ablation experiments conducted at 550 kA on the Michigan Accelerator for Inductive Z-Pinch Experiments. These experiments were performed to evaluate a hypothesis that the electrothermal instability (ETI) is responsible for the seeding of magnetohydrodynamic instabilities and that the cumulative growth of ETI is primarily dependent on the material-specific ratio of critical temperature to melting temperature. This ratio is lower in refractory metals (e.g., tantalum) than in non-refractory metals (e.g., aluminum or titanium). The experimental observations presented herein reveal that the plasma-vacuum interface is remarkably stable in tantalum liner ablations. This stability is particularly evident when contrasted with the observations from aluminum and titanium experiments. These results are important to various programs in pulsed-power-driven plasma physics that depend on liner implosion stability. Furthermore, examples include the magnetized liner inertial fusion (MagLIF) program and the cylindrical dynamic material properties program at Sandia National Laboratories, where liner experiments are conducted on the 27-MA Z facility.
Authors:
ORCiD logo [1] ;  [2] ;  [3] ;  [4] ;  [4] ; ORCiD logo [2] ;  [2] ;  [2] ; ORCiD logo [2]
  1. Univ. of Michigan, Ann Arbor, MI (United States); Lockheed Martin Aeronautics, Palmdale, CA (United States)
  2. Univ. of Michigan, Ann Arbor, MI (United States)
  3. Univ. of Michigan, Ann Arbor, MI (United States); Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
  4. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Publication Date:
Report Number(s):
SAND-2018-12459J
Journal ID: ISSN 1070-664X; 668854
Grant/Contract Number:
AC04-94AL85000; NA0001984; SC0012328; NA0003525
Type:
Accepted Manuscript
Journal Name:
Physics of Plasmas
Additional Journal Information:
Journal Volume: 25; Journal Issue: 3; Journal ID: ISSN 1070-664X
Publisher:
American Institute of Physics (AIP)
Research Org:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org:
USDOE National Nuclear Security Administration (NNSA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
OSTI Identifier:
1481788
Alternate Identifier(s):
OSTI ID: 1423401

Steiner, Adam M., Campbell, Paul C., Yager-Elorriaga, David Alexander, Cochrane, Kyle R., Mattsson, Thomas R., Jordan, Nicholas M., McBride, Ryan D., Lau, Yue Ying, and Gilgenbach, Ronald M.. The electro-thermal stability of tantalum relative to aluminum and titanium in cylindrical liner ablation experiments at 550 kA. United States: N. p., Web. doi:10.1063/1.5012891.
Steiner, Adam M., Campbell, Paul C., Yager-Elorriaga, David Alexander, Cochrane, Kyle R., Mattsson, Thomas R., Jordan, Nicholas M., McBride, Ryan D., Lau, Yue Ying, & Gilgenbach, Ronald M.. The electro-thermal stability of tantalum relative to aluminum and titanium in cylindrical liner ablation experiments at 550 kA. United States. doi:10.1063/1.5012891.
Steiner, Adam M., Campbell, Paul C., Yager-Elorriaga, David Alexander, Cochrane, Kyle R., Mattsson, Thomas R., Jordan, Nicholas M., McBride, Ryan D., Lau, Yue Ying, and Gilgenbach, Ronald M.. 2018. "The electro-thermal stability of tantalum relative to aluminum and titanium in cylindrical liner ablation experiments at 550 kA". United States. doi:10.1063/1.5012891.
@article{osti_1481788,
title = {The electro-thermal stability of tantalum relative to aluminum and titanium in cylindrical liner ablation experiments at 550 kA},
author = {Steiner, Adam M. and Campbell, Paul C. and Yager-Elorriaga, David Alexander and Cochrane, Kyle R. and Mattsson, Thomas R. and Jordan, Nicholas M. and McBride, Ryan D. and Lau, Yue Ying and Gilgenbach, Ronald M.},
abstractNote = {Presented are the results from the liner ablation experiments conducted at 550 kA on the Michigan Accelerator for Inductive Z-Pinch Experiments. These experiments were performed to evaluate a hypothesis that the electrothermal instability (ETI) is responsible for the seeding of magnetohydrodynamic instabilities and that the cumulative growth of ETI is primarily dependent on the material-specific ratio of critical temperature to melting temperature. This ratio is lower in refractory metals (e.g., tantalum) than in non-refractory metals (e.g., aluminum or titanium). The experimental observations presented herein reveal that the plasma-vacuum interface is remarkably stable in tantalum liner ablations. This stability is particularly evident when contrasted with the observations from aluminum and titanium experiments. These results are important to various programs in pulsed-power-driven plasma physics that depend on liner implosion stability. Furthermore, examples include the magnetized liner inertial fusion (MagLIF) program and the cylindrical dynamic material properties program at Sandia National Laboratories, where liner experiments are conducted on the 27-MA Z facility.},
doi = {10.1063/1.5012891},
journal = {Physics of Plasmas},
number = 3,
volume = 25,
place = {United States},
year = {2018},
month = {3}
}

Works referenced in this record:

Ab initiomolecular dynamics for liquid metals
journal, January 1993