Phase stability and phase transformations in plutonium and plutonium-gallium alloys

Jeremy N. Mitchell, Marius Stan, Daniel S. Schwartz, Carl J. Boehlert

Research output: Research - peer-reviewArticle

  • 29 Citations

Abstract

The complexity of phase stability and transformations in plutonium alloys is reflected in the plutonium-gallium (Pu-Ga) phase diagram, which is perhaps the most complex of all binary systems. Although many investigations have explored phase equilibria, transformation systematics, and structure/property relations in the Pu-Ga system, many outstanding problems remain and new issues regularly appear. In this article, we describe recent dilatometry and calorimetry measurements on pure plutonium and plutonium-gallium alloys. We also present recent phase diagram modeling that attempts to unravel differences between the U.S. and Russian Pu-Ga phase diagrams. The ultimate goal of this work is to produce the first internally consistent database of thermophysical properties of this system so that a true equilibrium phase diagram can be produced and so that stability can be predicted over a range of conditions.

LanguageEnglish (US)
Pages2267-2278
Number of pages12
JournalMetallurgical and Materials Transactions A: Physical Metallurgy and Materials Science
Volume35 A
Issue number8
StatePublished - Aug 2004
Externally publishedYes

Profile

Plutonium alloys
Plutonium
Phase stability
Phase diagrams
Phase transitions
Metallodent-C
Gallium alloys
plutonium alloys
gallium alloys
plutonium
phase transformations
phase diagrams
Gallium
gallium
Calorimetry
Phase equilibria
Thermodynamic properties
dilatometry
thermophysical properties
heat measurement

ASJC Scopus subject areas

  • Materials Science(all)
  • Metals and Alloys

Cite this

Phase stability and phase transformations in plutonium and plutonium-gallium alloys. / Mitchell, Jeremy N.; Stan, Marius; Schwartz, Daniel S.; Boehlert, Carl J.

In: Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science, Vol. 35 A, No. 8, 08.2004, p. 2267-2278.

Research output: Research - peer-reviewArticle

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