Density changes in Ga-stabilized δ-Pu, and what they mean

Ga-stabilized δ-Pu undergoes small changes in density with time. These have been associated with four different causes: an initial reversible expansion that saturates after a short time; a continuous change that can be attributed to the in-growth of helium and actinide daughter products from the rad...

Full description

Saved in:
Bibliographic Details
Published inJournal of alloys and compounds Vol. 444; pp. 72 - 79
Main Authors Wolfer, Wilhelm G., Kubota, Alison, Söderlind, Per, Landa, Alexander I., Oudot, Benoit, Sadigh, Babak, Sturgeon, Jess B., Surh, Michael P.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 11.10.2007
Subjects
Intermetallics
Metals
Point defects
Precipitation
X-ray diffraction
Intermetallics
X-ray diffraction
Precipitation
Point defects
Metals
Online AccessGet full text

Cover

More Information
Summary:Ga-stabilized δ-Pu undergoes small changes in density with time. These have been associated with four different causes: an initial reversible expansion that saturates after a short time; a continuous change that can be attributed to the in-growth of helium and actinide daughter products from the radioactive decay of plutonium; possible void swelling; and phase instability. We review our present understanding of these processes and evaluate their contributions to density changes. It is shown that the initial transient expansion is intimately connected with the metastability of the δ-phase at ambient temperature.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0925-8388
1873-4669
DOI:10.1016/j.jallcom.2006.10.045