The Phenomenon of Discharging Intwice of Underwater Wire Exploding

Zhang, Hanhong; Zhifu, Chen

doi:10.7498/aps.50.748

Acta Phys. Sin.

2001

DOI: 10.7498/aps.50.748

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The Phenomenon of Discharging Intwice of Underwater Wire Exploding

Hanhong Zhang¹,

Chen Zhifu²

Abstract: The phenomenon of discharging in twice of underwater wire exploding is discovered-by investigating the time characteristics of pulsed discharging current and voltage. Pictures taking by high-speed shadow photography and streak camera have testified the existence of the phenomenon. Parameters related to the phenomenon are presented in this paper.

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2012

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Mechanism of current injection in the process of wire electrical explosion

Xue-song¹,

Zhu²,

Fu-Long³

2012

Acta Phys. Sin.

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In the process of nanopowder production by the wire electrical explosion, the ablation of electrodes and the formation of micron-size particles are directly influenced by the way the current is injected into the metal wire from the electrodes. Through the channels which are provided by the contact between the electrodes and the wire ends, as well as the breakdown between them, a series of experiments of electrical explosion is carried out. Results show that the photocurrent detected by photodiodes at the wire ends almost occurs simultaneously with the circuit discharge current, however it at the central section lags behind the circuit discharge current obviously. The initial explosion product of the wire ends is liquid, and that of the other parts of wire is gas. Those results indicate that when the current folows into the contact, the phenomenon of gas discharge also occurs at the wire ends. Because the plasma provides another current path, the energy density of the wire ends is decreased. Hence, the wire ends cannot explode and form remainder on the electrodes. When the current flows into the breakdown, the electrodes ablated is slightly obvious, and there was no remainder on the electrodes.

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Mechanism of current injection in the process of wire electrical explosion

Xue-song¹,

Zhu²,

Fu-Long³

2012

Acta Phys. Sin.

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The Phenomenon of Discharging Intwice of Underwater Wire Exploding

Cited by 1 publication

References 0 publications

Mechanism of current injection in the process of wire electrical explosion

Mechanism of current injection in the process of wire electrical explosion

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