View in EDS

The Electrothermal Instability on Pulsed Power Ablations of Thin Foils.

Saved in:
Bibliographic Details
Title: The Electrothermal Instability on Pulsed Power Ablations of Thin Foils.
Authors: Steiner, Adam M., Campbell, Paul C., Yager-Elorriaga, David A., Jordan, Nicholas M., Mcbride, Ryan D., Lau, Y. Y., Gilgenbach, Ronald M.
Source: IEEE Transactions on Plasma Science. Nov2018, Vol. 46 Issue 11, Part 1, p3753-3765. 13p.
Subjects: Pulsed power systems, Pulsed power switches, Energy storage, Plasma gases, Finite element method, Magnetic fields
Abstract: Presented are results from the optical imaging of atmospheric ablations of thin aluminum foils. These experiments were performed to evaluate the growth of temperature perturbations attributed to the electrothermal instability (ETI). ETI has been shown to seed magnetohydrodynamic instabilities on pulsed power-driven ablations of initially solid metallic targets, a topic of interest to various programs in pulsed power-driven plasma physics that depend on stable liner implosions. Experimental observations presented herein demonstrate exponentially growing temperature perturbations perpendicular to the direction of current with growth rates consistent with the linear ETI theory. High-temperature regions were observed to enter the vapor phase before sufficient energy had been deposited in the bulk foil to overcome the latent heat of vaporization, indicating a significant spatial heterogeneity in energy deposition rates. The growth rates of these perturbations scale as the square of current density, the predicted behavior for long-wavelength ETI structures. The development of these structures was unchanged by physical deformation of the foil surface, but dramatically influenced by incorporating areas of local high resistance in the foil loads. Extending the observation window in time showed a transition from perpendicular to parallel filaments, which is significant because ETI is predicted to switch orientations when the bulk foil material transitions into the plasma state. Collectively, these results provide an experimental validation of many theoretical predictions regarding ETI. [ABSTRACT FROM AUTHOR]
Copyright of IEEE Transactions on Plasma Science is the property of IEEE and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
FullText Text:
  Availability: 0
Header DbId: egs
DbLabel: Engineering Source
An: 133668020
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
IllustrationInfo
Items – Name: Title
  Label: Title
  Group: Ti
  Data: The Electrothermal Instability on Pulsed Power Ablations of Thin Foils.
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Steiner%2C+Adam+M%2E%22">Steiner, Adam M.</searchLink><br /><searchLink fieldCode="AR" term="%22Campbell%2C+Paul+C%2E%22">Campbell, Paul C.</searchLink><br /><searchLink fieldCode="AR" term="%22Yager-Elorriaga%2C+David+A%2E%22">Yager-Elorriaga, David A.</searchLink><br /><searchLink fieldCode="AR" term="%22Jordan%2C+Nicholas+M%2E%22">Jordan, Nicholas M.</searchLink><br /><searchLink fieldCode="AR" term="%22Mcbride%2C+Ryan+D%2E%22">Mcbride, Ryan D.</searchLink><br /><searchLink fieldCode="AR" term="%22Lau%2C+Y%2E+Y%2E%22">Lau, Y. Y.</searchLink><br /><searchLink fieldCode="AR" term="%22Gilgenbach%2C+Ronald+M%2E%22">Gilgenbach, Ronald M.</searchLink>
– Name: TitleSource
  Label: Source
  Group: Src
  Data: <searchLink fieldCode="JN" term="%22IEEE+Transactions+on+Plasma+Science%22">IEEE Transactions on Plasma Science</searchLink>. Nov2018, Vol. 46 Issue 11, Part 1, p3753-3765. 13p.
– Name: Subject
  Label: Subjects
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Pulsed+power+systems%22">Pulsed power systems</searchLink><br /><searchLink fieldCode="DE" term="%22Pulsed+power+switches%22">Pulsed power switches</searchLink><br /><searchLink fieldCode="DE" term="%22Energy+storage%22">Energy storage</searchLink><br /><searchLink fieldCode="DE" term="%22Plasma+gases%22">Plasma gases</searchLink><br /><searchLink fieldCode="DE" term="%22Finite+element+method%22">Finite element method</searchLink><br /><searchLink fieldCode="DE" term="%22Magnetic+fields%22">Magnetic fields</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Presented are results from the optical imaging of atmospheric ablations of thin aluminum foils. These experiments were performed to evaluate the growth of temperature perturbations attributed to the electrothermal instability (ETI). ETI has been shown to seed magnetohydrodynamic instabilities on pulsed power-driven ablations of initially solid metallic targets, a topic of interest to various programs in pulsed power-driven plasma physics that depend on stable liner implosions. Experimental observations presented herein demonstrate exponentially growing temperature perturbations perpendicular to the direction of current with growth rates consistent with the linear ETI theory. High-temperature regions were observed to enter the vapor phase before sufficient energy had been deposited in the bulk foil to overcome the latent heat of vaporization, indicating a significant spatial heterogeneity in energy deposition rates. The growth rates of these perturbations scale as the square of current density, the predicted behavior for long-wavelength ETI structures. The development of these structures was unchanged by physical deformation of the foil surface, but dramatically influenced by incorporating areas of local high resistance in the foil loads. Extending the observation window in time showed a transition from perpendicular to parallel filaments, which is significant because ETI is predicted to switch orientations when the bulk foil material transitions into the plasma state. Collectively, these results provide an experimental validation of many theoretical predictions regarding ETI. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of IEEE Transactions on Plasma Science is the property of IEEE and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=133668020
RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1109/TPS.2018.2873947
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 13
        StartPage: 3753
    Subjects:
      – SubjectFull: Pulsed power systems
        Type: general
      – SubjectFull: Pulsed power switches
        Type: general
      – SubjectFull: Energy storage
        Type: general
      – SubjectFull: Plasma gases
        Type: general
      – SubjectFull: Finite element method
        Type: general
      – SubjectFull: Magnetic fields
        Type: general
    Titles:
      – TitleFull: The Electrothermal Instability on Pulsed Power Ablations of Thin Foils.
        Type: main
  BibRelationships:
    HasContributorRelationships:
      – PersonEntity:
          Name:
            NameFull: Steiner, Adam M.
      – PersonEntity:
          Name:
            NameFull: Campbell, Paul C.
      – PersonEntity:
          Name:
            NameFull: Yager-Elorriaga, David A.
      – PersonEntity:
          Name:
            NameFull: Jordan, Nicholas M.
      – PersonEntity:
          Name:
            NameFull: Mcbride, Ryan D.
      – PersonEntity:
          Name:
            NameFull: Lau, Y. Y.
      – PersonEntity:
          Name:
            NameFull: Gilgenbach, Ronald M.
    IsPartOfRelationships:
      – BibEntity:
          Dates:
            – D: 01
              M: 11
              Text: Nov2018
              Type: published
              Y: 2018
          Identifiers:
            – Type: issn-print
              Value: 00933813
          Numbering:
            – Type: volume
              Value: 46
            – Type: issue
              Value: 11, Part 1
          Titles:
            – TitleFull: IEEE Transactions on Plasma Science
              Type: main
ResultId 1