Foil explosion and decay of metastable state

V. I. Oreshkin, A. S. Zhigalin, A. G. Rousskikh, R. B. Baksht

Результат исследований: Материалы для журналаСтатья

Выдержка

The mechanism of decay of the superheated metastable metal produced by a thin foil explosion was investigated experimentally. The decay of the metastable metal was indicated by the occurrence of bubbles detected using soft x-ray backlighting. The experiments were carried out on a research facility comprising three current generators. One of them was used to initiate the explosion of a test foil, and the other two, X-pinch backlighting sources, were used for diagnostics. In the experiments, an upper limit has been determined for the decay time of the metastable state of a superheated metal. For aluminum, at a foil thickness of 6 μm and a deposited energy of 1.49 ± 0.08 eV/atom, the metastable state decay time was about 90 ns; for copper, at the same foil thickness and a deposited energy of 1.46 ± 0.07 eV/atom, it was about 250 ns. Analysis of the experimental results based on the classical nucleation theory has made it possible to estimate the work required for the formation of a critical bubble, the radius of the critical bubble, and the Tolman length, which characterizes the effect of the surface curvature on the surface tension. The work required for the formation of a critical bubble has been estimated to be 16.6 ± 1.5 eV for aluminum and 18.3 ± 1.2 eV for copper. The critical bubble radius and the Tolman length turned out to be several nanometers for both test metals.

Язык оригиналаАнглийский
Номер статьи062710
ЖурналPhysics of Plasmas
Том26
Номер выпуска6
DOI
СостояниеОпубликовано - 1 июн 2019

Отпечаток

metastable state
explosions
foils
bubbles
decay
metals
aluminum
copper
research facilities
radii
atoms
interfacial tension
generators
curvature
nucleation
occurrences
energy
estimates
x rays

ASJC Scopus subject areas

  • Condensed Matter Physics

Цитировать

Oreshkin, V. I., Zhigalin, A. S., Rousskikh, A. G., & Baksht, R. B. (2019). Foil explosion and decay of metastable state. Physics of Plasmas, 26(6), [062710]. https://doi.org/10.1063/1.5098817

Foil explosion and decay of metastable state. / Oreshkin, V. I.; Zhigalin, A. S.; Rousskikh, A. G.; Baksht, R. B.

В: Physics of Plasmas, Том 26, № 6, 062710, 01.06.2019.

Результат исследований: Материалы для журналаСтатья

Oreshkin, VI, Zhigalin, AS, Rousskikh, AG & Baksht, RB 2019, 'Foil explosion and decay of metastable state', Physics of Plasmas, том. 26, № 6, 062710. https://doi.org/10.1063/1.5098817
Oreshkin VI, Zhigalin AS, Rousskikh AG, Baksht RB. Foil explosion and decay of metastable state. Physics of Plasmas. 2019 Июнь 1;26(6). 062710. https://doi.org/10.1063/1.5098817
Oreshkin, V. I. ; Zhigalin, A. S. ; Rousskikh, A. G. ; Baksht, R. B. / Foil explosion and decay of metastable state. В: Physics of Plasmas. 2019 ; Том 26, № 6.
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