Studies of reactive and nonreactive metals–ejecta–transporting nonreactive and reactive gases and vacuum

Buttler, William Tillman; Cooley, Jason Christopher; Hammerberg, James Edward; Schulze, Roland K.; Schwarzkopf, John Dennis; Sheppard, Daniel Glen; Barefield, James E.; Charonko, John James; Goett, John Jerome III; Grover, Michael; La Lone, Brandon M.; Mance, Jason G.; Manzanares, Ruben; Martinez, John Israel; Schauer, Martin Michael; Schmidt, Derek William; Stevens, Gerald D.; Turley, William D.; Valencia, Robert J.

doi:10.1063/12.0000890

Studies of reactive and nonreactive metals–ejecta–transporting nonreactive and reactive gases and vacuum

Journal Article · Wed Jan 01 00:00:00 EST 2020 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/12.0000890· OSTI ID:1739973

^[1]; ^[1]; ^[1]; ^[1]; ^[1]; ^[1]; ^[1]; ^[1]; ^[1]; Grover, Michael ^[2]; La Lone, Brandon M. ^[2]; Mance, Jason G. ^[2]; ^[1]; ^[1]; ^[1]; ^[1]; Stevens, Gerald D. ^[2]; Turley, William D. ^[2]; Valencia, Robert J. ^[2]

Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Mission Support and Technical Services, Santa Barbara, CA (United States)

Here, we report recent results of reactive and nonreactive metal fragments–ejecta–transporting in vacuum, and reactive and nonreactive gases. We postulate that reactive ejecta transporting in a reactive gas, such as D₂, will rapidly break up into smaller fragments in situations where they are otherwise hydrodynamically stable in a nonreactive gas such as He. The ejecta were formed through explosive loading of thin Sn (nonreactive) and Ce (reactive) coupons that included machined periodic perturbations on their backsides, which interfaced with vacuum, He or D². Coupon surface hydrodynamics, ejecta mass- and size-velocity distributions, and ejecta temperatures were diagnosed with laser doppler velocimetry, piezoelectric transducers, Mie scattering and infrared imaging (IR). In addition, particle imaging velocimetry was applied for the first time to evaluate ejecta transport to study ejecta sheet breakup dynamics. The IR data demonstrate that rapid reactions of Ce ejecta transporting in D² occur.

View Accepted Manuscript (DOE)

Research Organization:: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)

Sponsoring Organization:: USDOE Laboratory Directed Research and Development (LDRD) Program

Grant/Contract Number:: 89233218CNA000001

OSTI ID:: 1739973

Report Number(s):: LA-UR--19-28017

Journal Information:: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 2272; ISSN 0094-243X

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

Country of Publication:: United States

Language:: English

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Studies of reactive and nonreactive metals–ejecta–transporting nonreactive and reactive gases and vacuum

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References (26)

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