Underwater microsecond timescale electrical explosions of aluminum and copper foils

Asmedianov, N.; Grikshtas, R.; Maler, D.; Liziakin, G.; Krasik, Ya. E.

doi:10.1063/5.0171299

Journal of Applied Physics

2023

DOI: 10.1063/5.0171299

|View full text |Cite

Underwater microsecond timescale electrical explosions of aluminum and copper foils

N. Asmedianov,

R. Grikshtas,

D. Maler

et al.

Abstract: We present results on underwater electrical explosions of thin aluminum and copper foils using a generator delivering ∼200 kA current amplitude, ∼0.9 μs rise time pulses. Time-resolved shadow imaging displays the generation of a strong planar shock wave in water in the vicinity of the exploding foil. Using time-resolved spectroscopy, aluminum oxide (AlO) absorption bands were observed in a Planckian-like spectrum, indicating that aluminum combustion starts when aluminum vaporizes. It is also shown that the str… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2023

2024

Publication Types

Select...

Article5

Relationship

Self Cite0

Independent5

Authors

Journals

Cited by 6 publications

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

Uniformity of planar shock waves generated by vaporizing foil actuator and its application to microfabrication

Hasegawa,

Tanaka,

Kasamura

et al. 2024

Int J Adv Manuf Technol

View full text Add to dashboard Cite

Uniformity of planar shock waves generated by vaporizing foil actuator and its application to microfabrication

Hasegawa,

Tanaka,

Kasamura

et al. 2024

Int J Adv Manuf Technol

View full text Add to dashboard Cite

Comparing magnetic pushing to underwater explosions for flyer acceleration

Maler,

Liziakin,

Belozerov

et al. 2023

Journal of Applied Physics

View full text Add to dashboard Cite

We present results exploring various methods of aluminum flyer acceleration. One method uses the shock wave generated by underwater electrical explosions of thin foils supplied by a pulse generator with stored energy of ∼4.7 kJ. Utilizing the shock created by an exploding foil, a maximal free flyer velocity of ∼2000 m/s is obtained. This acceleration method is compared to results exploiting only magnetic pushing to accelerate flyers using a common strip-line configuration, resulting in much lower velocities of ∼300 m/s. We also present a modified strip-line configuration, for which a significant increase in the flyer velocity to ∼1200 m/s is measured. Finally, a hybrid strip configuration, incorporating both the effects of magnetic pushing and acceleration by exploding foil and its subsequent shock wave, results in ∼1400 m/s flyer velocity. These experimental results are analyzed by numerical simulations and analytical modeling of the conservation equations of mass and momentum.

show abstract

Underwater electrical explosion of metallic wire and tube: A comparison study

Zhang,

et al. 2023

Physics of Plasmas

View full text Add to dashboard Cite

With an initial energy storage of approximately 53.5 kJ, experiments on underwater electrical explosions of metallic wire and thin-wall tube were conducted. Two sets of controlled experiments were designed, and the wire and tube for each set were of the same length, cross-sectional area, and material. Load voltage, circuit current, and shock wave pressure were measured and analyzed, and electric power, energy deposition, and energy deposition rate were also calculated and investigated. Experimental results indicated that the underwater electrical tube explosion (UETE) always has higher and earlier local resistance peak, voltage peak, and electric power peak, as well as faster phase transition and ionization process than the underwater electrical wire explosion (UEWE). In addition, the energy deposition rate from the beginning of discharge or the decrease in current to the voltage peak is significantly increased when replacing a wire with a tube. For the shock-wave characteristics, the peak pressure, energy density, and impulse of the shock wave generated by UETE are greater than that generated by UEWE. The peak pressure at ∼33 cm increased from 21.1 to 24.5 MPa in the first set and from 18.1 to 21.7 MPa in the second when a tube was used instead of a wire. These experimental results help us understand the physical process of UETE and provide an alternative methodology for load design in industrial applications.

show abstract

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

customersupport@researchsolutions.com

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Underwater microsecond timescale electrical explosions of aluminum and copper foils

Cited by 6 publications

References 19 publications

Uniformity of planar shock waves generated by vaporizing foil actuator and its application to microfabrication

Uniformity of planar shock waves generated by vaporizing foil actuator and its application to microfabrication

Comparing magnetic pushing to underwater explosions for flyer acceleration

Underwater electrical explosion of metallic wire and tube: A comparison study

Contact Info

Product

Resources

About