Shock-ramp compression of tin near the melt line

Seagle, Christopher T.; Porwitzky, Andrew James

doi:10.1063/1.5044783

Shock-ramp compression of tin near the melt line

Journal Article · Sun Jun 03 00:00:00 EDT 2018 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.5044783· OSTI ID:1478333

Seagle, Christopher T. ^[1]; Porwitzky, Andrew James ^[1]

Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

Tin has been shock compressed to ~69 GPa on the Hugoniot using Sandia’s Z Accelerator. A shockless compression wave closely followed the shock wave to ramp compress the shocked tin and probe a high temperature quasi-isentrope near the melt line. A new hybrid backwards integration – Lagrangian analysis routine was applied to the velocity waveforms to obtain the Lagrangian sound velocity of the tin as a function of particle velocity. Surprisingly, an elastic wave was observed on initial compression from the shock state. The presence of the elastic wave indicates tin possess a small but finite strength at this shock pressure, strongly indicating a (mostly) solid state. Finally, high fidelity shock Hugoniot measurements on tin sound velocities in this stress range may be required to refine the shock melting stress for pure tin.

Research Organization:: Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)

Sponsoring Organization:: USDOE National Nuclear Security Administration (NNSA), Office of Defense Science (NA-113)

Grant/Contract Number:: AC04-94AL85000

OSTI ID:: 1478333

Report Number(s):: SAND--2017-9994J; 657036

Journal Information:: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Vol. 1979; ISSN 0094-243X

Publisher:: American Institute of Physics (AIP)Copyright Statement

Country of Publication:: United States

Language:: English

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Large time-varying inductance load for studying power flow on the Z machine Porwitzky, Andrew; Hutsel, Brian T.; Seagle, Christopher T. Physical Review Accelerators and Beams, Vol. 22, Issue 9 https://doi.org/10.1103/physrevaccelbeams.22.090401	journal	September 2019