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Thermodynamic Modeling of Plutonium Oxide Containing Americium

Published online by Cambridge University Press:  01 February 2011

Masayuki Hirota ,
Ken KUROSAKI ,
Masayoshi UNO ,
Shuhei MIWA ,
Masahiko OSAKA ,
Kenya TANAKA  and
Shinsuke YAMANAKA
Masayuki Hirota
Affiliation:
hirota@cit.sangitan.ac.jp, College of Industrial Technology, Department of Information Engineering, 1-27-1 Nishikoya, Amagasaki, 661-0047, Japan, +81-6-6431-7561, +81-6-6431-7992
Ken KUROSAKI
Affiliation:
kurosaki@see.eng.osaka-u.ac.jp, Graduate School of Engineering, Osaka University, Suita, 565-0871, Japan
Masayoshi UNO
Affiliation:
uno@see.eng.osaka-u.ac.jp, Graduate School of Engineering, Osaka University, Suita, 565-0871, Japan
Shuhei MIWA
Affiliation:
miwa.shuhei@jaea.go.jp, Japan Atomic Energy Agency, Oarai-machi, 311-1393, Japan
Masahiko OSAKA
Affiliation:
ohsaka.masahiko@jaea.go.jp, Japan Atomic Energy Agency, Oarai-machi, 311-1393, Japan
Kenya TANAKA
Affiliation:
tanaka.kenya@jaea.go.jp, Japan Atomic Energy Agency, Oarai-machi, 311-1393, Japan
Shinsuke YAMANAKA
Affiliation:
yamanaka@see.eng.osaka-u.ac.jp, Graduate School of Engineering, Osaka University, Suita, 565-0871, Japan
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Abstract

Thermodynamic modeling has been performed for O-Am binary system and O-Pu-Am ternary system on the basis of thermodynamic data available in the literature. The interaction parameters of the excess Gibbs energies of the fluorite structure FCCC1 phase in the O-Am and the O-Pu-Am systems were evaluated with respect to the deviation from the ideal solution in oxygen potential, respectively. The thermodynamic modeling used in this study is based on the CALculation of PHAse Diagram (CALPHAD) technique.

Keywords

actinideoxidephase equilibria
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1043: Symposium T – Materials Innovations for Next-Generation Nuclear Energy , 2007 , 1043-T09-05
Copyright
Copyright © Materials Research Society 2008

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