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Title: Effects of self-irradiation in plutonium alloys

Journal Article · · Journal of Nuclear Materials
 [1];  [1];  [1]
  1. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

In this paper, we present updated results of self-irradiation effects on 238Pu-enriched 239Pu alloys measured by immersion density, dilatometry, and tensile tests. We obtained the self-irradiation equivalent time of nearly 200 years, nearly 100 years longer than in our previous papers. At this extended aging, we find the rate of decrease in density has slowed significantly, stabilizing around 15.73 g/cc, without signs of void swelling. The volume expansion measured at 35°C also shows apparent saturation at less than 0.25%. Quasi-static tensile measurement still show gradual increase in the strength of plutonium alloys with age.

Research Organization:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC52-07NA27344
OSTI ID:
1241955
Alternate ID(s):
OSTI ID: 1252045
Report Number(s):
LLNL-JRNL-670404; TRN: US1600505
Journal Information:
Journal of Nuclear Materials, Vol. 471; ISSN 0022-3115
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 12 works
Citation information provided by
Web of Science

References (18)

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MD simulations of phase stability of PuGa alloys: Effects of primary radiation defects and helium bubbles journal September 2013
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Characterization and modelling of helium bubbles in self-irradiated plutonium alloys journal February 2005
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Evolving density and static mechanical properties in plutonium from self-irradiation journal March 2009
Procedure for high precision density determinations by hydrostatic weighing
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Reversible expansion of gallium-stabilized δ-plutonium journal December 2006
Density changes in Ga-stabilized δ-Pu, and what they mean journal October 2007
Effect of radiation on bulk swelling of plutonium alloys journal April 2007
Study by XRD of the lattice swelling of PuGa alloys induced by self-irradiation journal June 2007

Cited By (1)