The Role of Helium on Ejecta Production in Copper

Fensin, Saryu Jindal; Jones, David Robert; Martinez, Daniel Tito; Lear, Calvin Robert; Payton, Jeremy Ronald

doi:10.3390/ma13061270

Title: The Role of Helium on Ejecta Production in Copper

Journal Article · 11 March 2020 · Materials

DOI: https://doi.org/10.3390/ma13061270 · OSTI ID:2377231

^[1];

^[1]; Payton, Jeremy Ronald ^[1]

Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

The effect of helium (He) concentration on ejecta production in OFHC-Copper was investigated using Richtmyer–Meshkov Instability (RMI) experiments. The experiments involved complex samples with periodic surface perturbations machined onto the surface. Each of the four target was implanted with a unique helium concentration that varied from 0 to 4000 appm. The perturbation’s wavelengths were $λ ≈$ 65 μ m, and their amplitudes $$h_0$$ were varied to determine the wavenumber $(2 π/ λ)$ amplitude product $$kh_0$$ at which ejecta production beganfor Cu with and without He. The velocity and mass of the ejecta produced was quantified using Photon Doppler Velocimetry (PDV) and Lithium-Niobate (LN) pins, respectively. Our results show that there was an increase of 30% in the velocity at which the ejecta cloud was traveling in Copper with 4000 appm as compared to its unimplanted counterpart. Our work also shows that there was a finer cloud of ejecta particles that was not detected by the PDV probes but was detected by the early arrival of a “signal” at the LN pins. While the LN pins were not able to successfully quantify the mass produced due to it being in the solid state, they did provide information on timing. Our results show that ejecta was produced for a longer time in the 4000 appm copper.

View Journal Article

Cite

Export

Save

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

Sponsoring Organization:: USDOE National Nuclear Security Administration (NNSA), Office of Defense Programs (DP); USDOE National Nuclear Security Administration (NNSA). Office of Defense Programs (DP)

Grant/Contract Number:: 89233218CNA000001; AC52-06NA25396

OSTI ID:: 2377231

Alternate ID(s):: OSTI ID: 1634977; OSTI ID: 1726179

Report Number(s):: LA-UR-19-32753; LA-UR-19-30934; MATEG9

Journal Information:: Materials, Vol. 13, Issue 6; ISSN 1996-1944

Publisher:: MDPICopyright Statement

Country of Publication:: United States

Language:: English

References (13)

Surface preparation methods to enhance dynamic surface property measurements of shocked metal surfaces Zellner, M. B.; Vogan McNeil, W.; Gray, G. T. Journal of Applied Physics, Vol. 103, Issue 8 https://doi.org/10.1063/1.2906107	journal	April 2008
Influence of Shockwave Profile on Ejecta Zellner, Michael B.; Dimonte, Guy; Germann, Timothy C. SHOCK COMPRESSION OF CONDENSED MATTER 2009: Proceedings of the American Physical Society Topical Group on Shock Compression of Condensed Matter, AIP Conference Proceedings https://doi.org/10.1063/1.3294980	conference	January 2009
Control of helium effects in irradiated materials based on theory and experiment Mansur, L. K.; Lee, E. H.; Maziasz, P. J. Journal of Nuclear Materials, Vol. 141-143 https://doi.org/10.1016/0022-3115(86)90066-8	journal	November 1986
Molecular dynamics simulations of ejecta formation in helium-implanted copper Flanagan, R. M.; Hahn, E. N.; Germann, T. C. Scripta Materialia, Vol. 178 https://doi.org/10.1016/j.scriptamat.2019.11.005	journal	March 2020
Yield strength of Cu and a CuPb alloy (1% Pb) Buttler, W. T.; Gray, G. T.; Fensin, S. J. SHOCK COMPRESSION OF CONDENSED MATTER - 2015: Proceedings of the Conference of the American Physical Society Topical Group on Shock Compression of Condensed Matter, AIP Conference Proceedings https://doi.org/10.1063/1.4971668	conference	January 2017
Second shock ejecta measurements with an explosively driven two-shockwave drive Buttler, W. T.; Oró, D. M.; Olson, R. T. Journal of Applied Physics, Vol. 116, Issue 10 https://doi.org/10.1063/1.4895053	journal	September 2014
Dynamic damage nucleation and evolution in multiphase materials Fensin, S. J.; Escobedo, J. P.; Gray, G. T. Journal of Applied Physics, Vol. 115, Issue 20 https://doi.org/10.1063/1.4880435	journal	May 2014
Ejection of material from shocked surfaces Asay, J. R.; Mix, L. P.; Perry, F. C. Applied Physics Letters, Vol. 29, Issue 5 https://doi.org/10.1063/1.89066	journal	September 1976
Mechanical behavior of copper containing a gas-bubble superlattice Wang, Zhang-Jie; Allen, Frances I.; Shan, Zhi-Wei Acta Materialia, Vol. 121 https://doi.org/10.1016/j.actamat.2016.08.085	journal	December 2016
Foreword to the Special Issue on Ejecta Buttler, W. T.; Williams, R. J. R.; Najjar, F. M. Journal of Dynamic Behavior of Materials, Vol. 3, Issue 2 https://doi.org/10.1007/s40870-017-0120-8	journal	May 2017
In situ nanocompression testing of irradiated copper Kiener, D.; Hosemann, P.; Maloy, S. A. Nature Materials, Vol. 10, Issue 8 https://doi.org/10.1038/nmat3055	journal	June 2011
Large-Scale Molecular Dynamics Simulations of Ejecta Formation in Copper Germann, Timothy C. SHOCK COMPRESSION OF CONDENSED MATTER - 2003: Proceedings of the Conference of the American Physical Society Topical Group on Shock Compression of Condensed Matter, AIP Conference Proceedings https://doi.org/10.1063/1.1780236	conference	January 2004
High-Strain-Rate Deformation: Mechanical Behavior and Deformation Substructures Induced (Rusty) Gray, George T. Annual Review of Materials Research, Vol. 42, Issue 1 https://doi.org/10.1146/annurev-matsci-070511-155034	journal	August 2012