Study of the core gaps formed accidentally during wire explosion

被引：4

作者：

Tkachenko, S. I. ^{[1
,2
]}

Khattatov, T. A. ^{[1
]}

Romanova, V. M. ^{[3
]}

Mingaleev, A. R. ^{[3
]}

Baksht, R. B. ^{[4
]}

Oreshkin, V. I. ^{[4
]}

Shelkovenko, T. A. ^{[3
]}

Pikuz, S. A. ^{[3
]}

机构：

[1] Moscow Inst Phys & Technol, Dolgoprudnyi 141700, Moscow Oblast, Russia

[2] Russian Acad Sci, Joint Inst High Temp, Moscow 125412, Russia

[3] Russian Acad Sci, PN Lebedev Phys Inst, Moscow 119991, Russia

[4] Russian Acad Sci, Siberian Branch, Inst High Current Elect, Tomsk 634055, Russia

来源：

PLASMA PHYSICS REPORTS | 2012年 / 38卷 / 02期

基金：

俄罗斯基础研究基金会;

关键词：

ELECTRICAL EXPLOSION; DENSE CORE; FACILITY; PLASMA;

D O I：

10.1134/S1063780X12010102

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

During wire explosion, along with striations (a regular structure with alternating lower and higher density bands), low-density regions the characteristic axial size of which differs substantially from that of striations and can reach 1-2 mm are also observed in the discharge channel. Such irregular structures came to be known as "gaps" (D. B. Sinars et al., Phys. Plasmas 8, 216 (2001)). In the present study, the mechanism of the formation of core gaps during explosions of 25- and 50-mu m-diameter copper and nickel wires in air is investigated. It is shown that the specific energy deposited in the gap region substantially exceeds the average specific energy deposited in the wire material.

引用

页码：100 / 109

页数：10

共 28 条

[1] Studies of penetration of the magnetic field into electrically imploded loads in the Angara-5-1 facility [J].

Aleksandrov, V. V. ;

Barsuk, V. A. ;

Grabovski, E. V. ;

Gritsuk, A. N. ;

Zukakishvili, G. G. ;

Medovshchikov, S. F. ;

Mitrofanov, K. N. ;

Oleinik, G. M. ;

Sasorov, P. V. .

PLASMA PHYSICS REPORTS, 2009, 35 (03) :200-221

[2]

Alpher R.A., 1965, Plasma Diagnostic Techniques, chapter Optical Interferometry, V1st

[3] Magnetic properties of iron nanoparticles prepared by exploding wire technique [J].

Alqudami, Abdullah ;

Annapoorni, S. ;

Lamba, Subhalakshmi ;

Kothari, P. C. ;

Kotnala, R. K. .

JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, 2007, 7 (06) :1898-1903

[4]

[Anonymous], 1965, PLASMA DIAGNOSTIC TE

[5]

[Anonymous], 1993, SIMILARITY DIMENSION, DOI DOI 10.1016/C2013-0-08173-X

[6]

Arnold H., 1962, EXPLODING WIRES, V2, P77

[7] Discharge phenomena associated with a preheated wire explosion in vacuum: Theory and comparison with experiment [J].

Beilis, I. I. ;

Baksht, R. B. ;

Oreshkin, V. I. ;

Russkikh, A. G. ;

Chaikovskii, S. A. ;

Labetskii, A. Yu. ;

Ratakhin, N. A. ;

Shishlov, A. V. .

PHYSICS OF PLASMAS, 2008, 15 (01)

[8]

Burtsev VA., 1990, Electrical Explosion of Conductors and Its Application in Electrophysical Equipment

[9] Use of microsecond current prepulse for dramatic improvements of wire array Z-pinch implosion [J].

Calamy, H. ;

Lassalle, F. ;

Loyen, A. ;

Zucchini, F. ;

Chittenden, J. P. ;

Hamann, F. ;

Maury, P. ;

Georges, A. ;

Bedoch, J. P. ;

Morell, A. .

PHYSICS OF PLASMAS, 2008, 15 (01)

[10]

Fortov V., 2006, Physics of Strongly Coupled Plasma, V135, DOI DOI 10.1093/ACPROF:OSO/9780199299805.001.0001

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