Effect of the thermal instability on the conductor electrical explosion

Abstract

An electrical explosion of thin metal wires at a current rise time of several tens of nanoseconds and at a current density of ∼10 ⁸ A/cm ² was studied. The experimental results with the LC generator (67 nF, 730 nH) at the 5-20 kV voltage are described and compared with the simulation ones. Simulation model used a wire explosion based on the matter phase transfers. A two-dimensional magnetohydrodynamic code based on the particle-in-cell method is used to consider the formation of striations and a low-density plasma corona surrounding the wire. The striations are shown to occur through evolving overheat instabilities early in the explosion, when the conductor material is in the liquid or two-phase states. The process owes to the decrease in liquid metal conductivity with temperature increasing and density decreasing. Comparison between the experiment and simulation demonstrates the acceptable coincidence.

Original language	English
Title of host publication	IEEE International Conference on Plasma Science
Pages	294
Number of pages	1
Publication status	Published - 2004
Externally published	Yes
Event	IEEE Conference Record - Abstracts: The 31st IEEE International Conference on Plasma Science, ICOPS2004 - Baltimore, MD, United States Duration: 28 Jun 2004 → 1 Jul 2004

Other

Other	IEEE Conference Record - Abstracts: The 31st IEEE International Conference on Plasma Science, ICOPS2004
Country	United States
City	Baltimore, MD
Period	28.6.04 → 1.7.04

ASJC Scopus subject areas

Condensed Matter Physics

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Baksht, R. B., Oreshkin, V. I., Ratakhin, N. A., Rousskich, A. G., Labetsky, A. Y., Shishlov, A. V., Levashov, P. R., Khitschenko, K. V., & Beilis, I. I. (2004). Effect of the thermal instability on the conductor electrical explosion. In IEEE International Conference on Plasma Science (pp. 294). [4P37]

Effect of the thermal instability on the conductor electrical explosion. / Baksht, R. B.; Oreshkin, V. I.; Ratakhin, N. A.; Rousskich, A. G.; Labetsky, A. Yu; Shishlov, A. V.; Levashov, P. R.; Khitschenko, K. V.; Beilis, I. I.

IEEE International Conference on Plasma Science. 2004. p. 294 4P37.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Baksht, RB, Oreshkin, VI , Ratakhin, NA, Rousskich, AG, Labetsky, AY, Shishlov, AV, Levashov, PR, Khitschenko, KV & Beilis, II 2004, Effect of the thermal instability on the conductor electrical explosion. in IEEE International Conference on Plasma Science., 4P37, pp. 294, IEEE Conference Record - Abstracts: The 31st IEEE International Conference on Plasma Science, ICOPS2004, Baltimore, MD, United States, 28.6.04.

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title = "Effect of the thermal instability on the conductor electrical explosion",

abstract = "An electrical explosion of thin metal wires at a current rise time of several tens of nanoseconds and at a current density of ∼10 8 A/cm 2 was studied. The experimental results with the LC generator (67 nF, 730 nH) at the 5-20 kV voltage are described and compared with the simulation ones. Simulation model used a wire explosion based on the matter phase transfers. A two-dimensional magnetohydrodynamic code based on the particle-in-cell method is used to consider the formation of striations and a low-density plasma corona surrounding the wire. The striations are shown to occur through evolving overheat instabilities early in the explosion, when the conductor material is in the liquid or two-phase states. The process owes to the decrease in liquid metal conductivity with temperature increasing and density decreasing. Comparison between the experiment and simulation demonstrates the acceptable coincidence. ",

author = "Baksht, {R. B.} and Oreshkin, {V. I.} and Ratakhin, {N. A.} and Rousskich, {A. G.} and Labetsky, {A. Yu} and Shishlov, {A. V.} and Levashov, {P. R.} and Khitschenko, {K. V.} and Beilis, {I. I.}",

year = "2004",

language = "English",

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note = "IEEE Conference Record - Abstracts: The 31st IEEE International Conference on Plasma Science, ICOPS2004 ; Conference date: 28-06-2004 Through 01-07-2004",

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T1 - Effect of the thermal instability on the conductor electrical explosion

AU - Baksht, R. B.

AU - Oreshkin, V. I.

AU - Ratakhin, N. A.

AU - Rousskich, A. G.

AU - Labetsky, A. Yu

AU - Shishlov, A. V.

AU - Levashov, P. R.

AU - Khitschenko, K. V.

AU - Beilis, I. I.

PY - 2004

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N2 - An electrical explosion of thin metal wires at a current rise time of several tens of nanoseconds and at a current density of ∼10 8 A/cm 2 was studied. The experimental results with the LC generator (67 nF, 730 nH) at the 5-20 kV voltage are described and compared with the simulation ones. Simulation model used a wire explosion based on the matter phase transfers. A two-dimensional magnetohydrodynamic code based on the particle-in-cell method is used to consider the formation of striations and a low-density plasma corona surrounding the wire. The striations are shown to occur through evolving overheat instabilities early in the explosion, when the conductor material is in the liquid or two-phase states. The process owes to the decrease in liquid metal conductivity with temperature increasing and density decreasing. Comparison between the experiment and simulation demonstrates the acceptable coincidence.

AB - An electrical explosion of thin metal wires at a current rise time of several tens of nanoseconds and at a current density of ∼10 8 A/cm 2 was studied. The experimental results with the LC generator (67 nF, 730 nH) at the 5-20 kV voltage are described and compared with the simulation ones. Simulation model used a wire explosion based on the matter phase transfers. A two-dimensional magnetohydrodynamic code based on the particle-in-cell method is used to consider the formation of striations and a low-density plasma corona surrounding the wire. The striations are shown to occur through evolving overheat instabilities early in the explosion, when the conductor material is in the liquid or two-phase states. The process owes to the decrease in liquid metal conductivity with temperature increasing and density decreasing. Comparison between the experiment and simulation demonstrates the acceptable coincidence.

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