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Title: Thermodynamical calculation of metal heating in nanosecond exploding wire and foil experiments

Abstract

A method of thermodynamical calculation of thin metal wire heating during its electrical explosion is discussed. The technique is based on a calculation of Joule energy deposition taking into account the current wave form and the temperature dependence of the resistivity and heat capacity of the metal. Comparing the calculation to a set of exploding tungsten wire experiments demonstrates good agreement up to the time of melting. Good agreement is also demonstrated with resistive magnetohydrodynamics simulation. A similar thermodynamical calculation for Mo, Ti, Ni, Fe, Al, and Cu shows good agreement with experimental data. The thermodynamical technique is useful for verification of the voltage measurements in exploding wire experiments. This technique also shows good agreement with an exploding W foil experiment.

Authors:
; ;  [1];  [2]
  1. Ktech Corporation, 10800 Gibson Boulevard, Albuquerque, New Mexico 87123 (United States)
  2. (United States)
Publication Date:
OSTI Identifier:
20953418
Resource Type:
Journal Article
Resource Relation:
Journal Name: Review of Scientific Instruments; Journal Volume: 78; Journal Issue: 4; Other Information: DOI: 10.1063/1.2712938; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ALUMINIUM; COPPER; EXPLODING WIRES; FOILS; HEATING; IRON; MAGNETOHYDRODYNAMICS; MELTING; MELTING POINTS; MOLYBDENUM; NICKEL; PLASMA; PLASMA SIMULATION; SPECIFIC HEAT; TEMPERATURE DEPENDENCE; TITANIUM; TUNGSTEN

Citation Formats

Sarkisov, G. S., Rosenthal, S. E., Struve, K. W., and Sandia National Laboratories, Albuquerque, New Mexico 87110. Thermodynamical calculation of metal heating in nanosecond exploding wire and foil experiments. United States: N. p., 2007. Web. doi:10.1063/1.2712938.
Sarkisov, G. S., Rosenthal, S. E., Struve, K. W., & Sandia National Laboratories, Albuquerque, New Mexico 87110. Thermodynamical calculation of metal heating in nanosecond exploding wire and foil experiments. United States. doi:10.1063/1.2712938.
Sarkisov, G. S., Rosenthal, S. E., Struve, K. W., and Sandia National Laboratories, Albuquerque, New Mexico 87110. Sun . "Thermodynamical calculation of metal heating in nanosecond exploding wire and foil experiments". United States. doi:10.1063/1.2712938.
@article{osti_20953418,
title = {Thermodynamical calculation of metal heating in nanosecond exploding wire and foil experiments},
author = {Sarkisov, G. S. and Rosenthal, S. E. and Struve, K. W. and Sandia National Laboratories, Albuquerque, New Mexico 87110},
abstractNote = {A method of thermodynamical calculation of thin metal wire heating during its electrical explosion is discussed. The technique is based on a calculation of Joule energy deposition taking into account the current wave form and the temperature dependence of the resistivity and heat capacity of the metal. Comparing the calculation to a set of exploding tungsten wire experiments demonstrates good agreement up to the time of melting. Good agreement is also demonstrated with resistive magnetohydrodynamics simulation. A similar thermodynamical calculation for Mo, Ti, Ni, Fe, Al, and Cu shows good agreement with experimental data. The thermodynamical technique is useful for verification of the voltage measurements in exploding wire experiments. This technique also shows good agreement with an exploding W foil experiment.},
doi = {10.1063/1.2712938},
journal = {Review of Scientific Instruments},
number = 4,
volume = 78,
place = {United States},
year = {Sun Apr 15 00:00:00 EDT 2007},
month = {Sun Apr 15 00:00:00 EDT 2007}
}