Probing He bubbles in naturally aged and annealed δ-Pu alloys using ultra-small-angle x-ray scattering
Abstract
Here, the self-irradiation of Pu alloys generates He that is trapped within the metal matrix in the form of He bubbles. The distribution of these He bubbles in δ-phase Pu-Ga alloys exhibits a peak near a radius of 0.7 nm, and this size is remarkably stable as function of time. When annealed, the He bubbles in δ-Pu alloys grow, coarsening the distribution. However, the magnitude of this coarsening is uncertain, as different experimental methods reveal bubbles that differ by at least one order of magnitude. Small-angle x-ray scattering results, which can probe a wide range of bubble sizes, imply only a mild coarsening of the He bubble distribution for an annealing treatment of 425°C for 24 h, and analysis of the He bubble content suggests that He is actually lost from the bubbles with annealing.
- Authors:
-
[1];
[2];
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
- Publication Date:
- Research Org.:
- Argonne National Lab. (ANL), Argonne, IL (United States); Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES); USDOE National Nuclear Security Administration (NNSA)
- OSTI Identifier:
- 1420075
- Alternate Identifier(s):
- OSTI ID: 1438723; OSTI ID: 1549453
- Report Number(s):
- LLNL-JRNL-736296
Journal ID: ISSN 0022-3115; 137553; TRN: US1801452
- Grant/Contract Number:
- AC02-06CH11357; AC52-07NA27344
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Journal of Nuclear Materials
- Additional Journal Information:
- Journal Volume: 498; Journal Issue: C; Journal ID: ISSN 0022-3115
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; He bubbles; Plutonium; self-irradiation; small-angle x-ray scattering; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
Citation Formats
Jeffries, J. R., Hammons, J. A., Willey, T. M., Wall, M. A., Ruddle, D., Ilavsky, J., Allen, P. G., and van Buuren, T. Probing He bubbles in naturally aged and annealed δ-Pu alloys using ultra-small-angle x-ray scattering. United States: N. p., 2017.
Web. doi:10.1016/j.jnucmat.2017.10.058.
Jeffries, J. R., Hammons, J. A., Willey, T. M., Wall, M. A., Ruddle, D., Ilavsky, J., Allen, P. G., & van Buuren, T. Probing He bubbles in naturally aged and annealed δ-Pu alloys using ultra-small-angle x-ray scattering. United States. https://doi.org/10.1016/j.jnucmat.2017.10.058
Jeffries, J. R., Hammons, J. A., Willey, T. M., Wall, M. A., Ruddle, D., Ilavsky, J., Allen, P. G., and van Buuren, T. Tue .
"Probing He bubbles in naturally aged and annealed δ-Pu alloys using ultra-small-angle x-ray scattering". United States. https://doi.org/10.1016/j.jnucmat.2017.10.058. https://www.osti.gov/servlets/purl/1420075.
@article{osti_1420075,
title = {Probing He bubbles in naturally aged and annealed δ-Pu alloys using ultra-small-angle x-ray scattering},
author = {Jeffries, J. R. and Hammons, J. A. and Willey, T. M. and Wall, M. A. and Ruddle, D. and Ilavsky, J. and Allen, P. G. and van Buuren, T.},
abstractNote = {Here, the self-irradiation of Pu alloys generates He that is trapped within the metal matrix in the form of He bubbles. The distribution of these He bubbles in δ-phase Pu-Ga alloys exhibits a peak near a radius of 0.7 nm, and this size is remarkably stable as function of time. When annealed, the He bubbles in δ-Pu alloys grow, coarsening the distribution. However, the magnitude of this coarsening is uncertain, as different experimental methods reveal bubbles that differ by at least one order of magnitude. Small-angle x-ray scattering results, which can probe a wide range of bubble sizes, imply only a mild coarsening of the He bubble distribution for an annealing treatment of 425°C for 24 h, and analysis of the He bubble content suggests that He is actually lost from the bubbles with annealing.},
doi = {10.1016/j.jnucmat.2017.10.058},
journal = {Journal of Nuclear Materials},
number = C,
volume = 498,
place = {United States},
year = {Tue Oct 31 00:00:00 EDT 2017},
month = {Tue Oct 31 00:00:00 EDT 2017}
}
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Works referencing / citing this record:
He Bubble Concentration, Size and Strain in Implanted Aluminum by SAXS/WAXS
journal, September 2019
- Hammons, Joshua A.; Tumey, Scott J.; Idell, Yaakov
- JOM, Vol. 72, Issue 1
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