Journal of Applied Physics

Equation of state measurements of additively manufactured tantalum up to 437 GPa

M M. G. Gorman M M. Jones S S. Keaveney (Croom Medical 3 , Croom, Limerick,) J J. S. Read (First Light Fusion 1 , Oxford OX5 1QU,) B B. Dias (First Light Fusion Ltd. 1 , Unit 9 and 10 Oxford Pioneer Park, Yarnton, Oxford OX5 1QU, Oxfordshire,) K K. Osborn (First Light Fusion 1 , Oxford OX5 1QU,) J J. Shadbolt (First Light Fusion Ltd. 1 , Unit 9 and 10 Oxford Pioneer Park, Yarnton, Oxford OX5 1QU, Oxfordshire,) P P. Jarvis (First Light Fusion 1 , Oxford OX5 1QU,) S S. Foster (First Light Fusion 1 , Oxford OX5 1QU,) B B. Naab (Croom Medical 3 , Croom, Limerick,) M M. Osborne (Global Advanced Metals USA, Inc., Boyertown 4 , County Line Road, P.O. Box 1608, Boyertown, Pennsylvania 19512,) G G. C. Burdiak (First Light Fusion 1 , Oxford OX5 1QU,) T T. Ringrose (First Light Fusion 1 , Oxford OX5 1QU,) J J. W. Skidmore (First Light Fusion 1 , Oxford OX5 1QU,) H H. W. Doyle (First Light Fusion Ltd. 1 , Unit 9 and 10 Oxford Pioneer Park, Yarnton, Oxford OX5 1QU, Oxfordshire,)

Abstract

Symmetric impact experiments of additively manufactured tantalum (AM Ta) were performed on a two-stage light-gas gun at projectile velocities up to 6.7 km/s. The projectile velocity and shock transit time through the Ta sample were both measured using Photon Doppler Velocimetry (PDV), which enabled absolute measurements of the AM Ta shock equation of state. Our results showed that the shock response of the AM Ta samples agreed, within experimental uncertainties, with the previous measurements of the wrought Ta samples at pressures between 125 and 437 GPa. These results are promising for using additively manufactured components for inertial fusion energy and high-pressure materials science applications and demonstrate that the high-pressure behavior of AM Ta can be modeled using the existing equations of state for tantalum.

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Article Details

Volume / Issue Vol. 137, Issue 21
Published June 07, 2025
ISSN 0021-8979
Publisher American Institute of Physics

Journal Info

Journal of Applied Physics

American Institute of Physics
ISSN: 0021-8979 Physical Sciences

Authors (15)

M

M. G. Gorman

M

M. Jones

S

S. Keaveney

Croom Medical 3 , Croom, Limerick,

J

J. S. Read

First Light Fusion 1 , Oxford OX5 1QU,

B

B. Dias

First Light Fusion Ltd. 1 , Unit 9 and 10 Oxford Pioneer Park, Yarnton, Oxford OX5 1QU, Oxfordshire,

K

K. Osborn

First Light Fusion 1 , Oxford OX5 1QU,

J

J. Shadbolt

First Light Fusion Ltd. 1 , Unit 9 and 10 Oxford Pioneer Park, Yarnton, Oxford OX5 1QU, Oxfordshire,

P

P. Jarvis

First Light Fusion 1 , Oxford OX5 1QU,

S

S. Foster

First Light Fusion 1 , Oxford OX5 1QU,

B

B. Naab

Croom Medical 3 , Croom, Limerick,

M

M. Osborne

Global Advanced Metals USA, Inc., Boyertown 4 , County Line Road, P.O. Box 1608, Boyertown, Pennsylvania 19512,

G

G. C. Burdiak

First Light Fusion 1 , Oxford OX5 1QU,

T

T. Ringrose

First Light Fusion 1 , Oxford OX5 1QU,

J

J. W. Skidmore

First Light Fusion 1 , Oxford OX5 1QU,

H

H. W. Doyle

First Light Fusion Ltd. 1 , Unit 9 and 10 Oxford Pioneer Park, Yarnton, Oxford OX5 1QU, Oxfordshire,

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