Property measurements of (U $_{0.7}$ ,Pu $_{0.3}$ )O $_{2-x}$ in $_{O2}$ -controlled atmosphere

Kato, Masato ; Murakami, Tatsutoshi ; Sunaoshi, Takeo*; Nelson, A. T.*; McClellan, K.*

Uranium and plutonium mixed oxide (U $_{0.7}$ ,Pu $_{0.3}$ )O $_{2-x}$ which has been developed as a fast reactor fuel is nonstoichiometric compound. The stoichiometry significantly affects various properties. The relationship between oxygen potential and oxygen-to-metal (O/M) ratio has been investigated so far. The measurement results showed that it is essential to control oxygen partial pressure ( $_{O2}$ ) for holding constant O/M ratio in high temperature range. Therefore, properties of (U $_{0.7}$ ,Pu $_{0.3}$ )O $_{2-x}$ were measured in $_{O2}$ -controlled atmosphere in this work. In this work, properties of O/M change, sintering and thermal expansion were investigated in $_{O2}$ -controlled atmosphere.

Language	:	English
Journal	:	Proceedings of International Nuclear Fuel Cycle Conference; Nuclear Energy at a Crossroads (GLOBAL 2013) (CD-ROM)
Volume	:
Number	:
Pages	:	p.852 - 856
Publication Year/Month	:	2013/09
Meeting title	:	International Nuclear Fuel Cycle Conference; Nuclear Energy at a Crossroads (GLOBAL 2013)
Held date	:	2013/09
Location (city)	:	Salt Lake City
Location (country)	:	U.S.A.
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DOI for research data	:
Keywords	:	no keyword
Research Facility	:	プルトニウム燃料製造施設
Press Release	:
Article of JAEA R&D Review	:
Cooperating Institute	:	Los Alamos National Laboratory

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Registration No. : BB20123098
JAEA Abstracts No. : 42000238
Paper Submission No. : 13811

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Property measurements of (U,Pu)O in -controlled atmosphere

Property measurements of (U $_{0.7}$ ,Pu $_{0.3}$ )O $_{2-x}$ in $_{O2}$ -controlled atmosphere