Optical diagnosis of electrical explosion process of aluminum wire

AbstractThe development of pulsed power technology, particularly for inductive energy storage, promotes the extensive discussions of electrical explosion process in high energy density. This paper presents the electrical-explosion behavior of carbon fibers subjected to about 20 kA, ~5 µs high-density current pulse igniting an intense electron beam accelerator. After electrical explosion, and surface rupture, submicron particles, fibrillar and strip-shaped structures were observed, experimentally supporting the microstructure model (skin-core heterogeneity) of carbon fiber. Interestingly, the start and turn-off of the current were followed by radiation pulses with different intensities. It was found that the radiation was focused on the explosion stage which was characterized by an oscillating current. The instabilities of plasma produced during the explosion process play an important role in the microstructure changes of carbon fibers and the radiation generation.

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Influence of Energy Deposition on Characteristics of Nanopowders Synthesized by Electrical Explosion of Aluminum Wire in the Argon Gas

IEEE Transactions on Nanotechnology ◽

10.1109/tnano.2014.2325212 ◽

2014 ◽

Vol 13 (4) ◽

pp. 842-849 ◽

Cited By ~ 5

Author(s):

Longchen Liu ◽

Junping Zhao ◽

Wenyu Yan ◽

Qiaogen Zhang

Keyword(s):

Energy Deposition ◽

Electrical Explosion ◽

Aluminum Wire ◽

Argon Gas

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Study on Characteristics of Nanopowders Synthesized by Nanosecond Electrical Explosion of Thin Aluminum Wire in the Argon Gas

IEEE Transactions on Plasma Science ◽

10.1109/tps.2013.2240318 ◽

2013 ◽

Vol 41 (8) ◽

pp. 2221-2226 ◽

Cited By ~ 10

Author(s):

Longchen Liu ◽

Qiaogen Zhang ◽

Junping Zhao ◽

Wenyu Yan ◽

Lu Zhang ◽

...

Keyword(s):

Electrical Explosion ◽

Aluminum Wire ◽

Argon Gas ◽

Thin Aluminum

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Study on the energy deposition in fast electrical explosion of single aluminum wire in vacuum

2014 International Symposium on Discharges and Electrical Insulation in Vacuum (ISDEIV) ◽

10.1109/deiv.2014.6961690 ◽

2014 ◽

Cited By ~ 2

Author(s):

K. Wang ◽

Z. Q. Shi ◽

Y. J. Shi ◽

J. Wu ◽

S. L. Jia

Keyword(s):

Energy Deposition ◽

Electrical Explosion ◽

Aluminum Wire

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The Use of Alumina Nanoparticles as Modifiers of Galvanic Binder of Diamond Tools

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.1040.199 ◽

2014 ◽

Vol 1040 ◽

pp. 199-201 ◽

Cited By ~ 5

Author(s):

N.I. Polushin ◽

M.S. Ovchinnikova ◽

A.L. Maslov

Keyword(s):

Diamond Tool ◽

Average Particle Size ◽

Electrical Explosion ◽

Strength Properties ◽

Alumina Nanoparticles ◽

Average Particle ◽

Test Results ◽

Aluminum Wire ◽

Electrochemical Coatings ◽

Alumina Nanopowder

This article presents results of a study of the surface topography of nickel composite electrochemical coatings (CEC), reinforced alumina nanoparticles, and the test results of the diamond tool. Used as a reinforcing phase alumina nanopowder was obtained by electrical explosion of aluminum wire in oxygenated atmosphere and had an average particle size of 60-70 nm. Experiments showed that the inclusion of alumina nanoparticles in a nickel matrix modifies its structure and increases the strength properties, so the wear resistance of diamond-plating increased by 3 times.

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