Thermodynamical calculation of metal heating in nanosecond exploding wire and foil experiments
- Ktech Corporation, 10800 Gibson Boulevard, Albuquerque, New Mexico 87123 (United States)
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.
- OSTI ID:
- 20953418
- Journal Information:
- Review of Scientific Instruments, Vol. 78, Issue 4; Other Information: DOI: 10.1063/1.2712938; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0034-6748
- Country of Publication:
- United States
- Language:
- English
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