Thermophyisical properties of (U,Ce)O $_{2pm x}$

White, J.*; Hirooka, Shun ; Murakami, Tatsutoshi ; Nelson, A.*; McClellan, K.*; Kato, Masato

Use of CeO $_{2}$ as a surrogate to better understand the behavior of MOX fuels requires a fundamental investigation of the thermophysical properties to assess the appropriate use. The challenge in performing thermophysical property measurements on oxygen non-toichiometric MOX is in handling the kinetics at elevated temperatures and also in determining a reference state from which to measure the oxygen:metal ratio (O:M). This study integrated the use of identical gas handling systems installed on a thermogravimetric analyzer and the property measurement system (differential scanning calorimeter and laser flash analyzer) to control the partial pressure of oxygen, PO $_{2}$ , between the system and maintain stoichiometry from ambient temperature to 1200 $^{circ}$ C.

Language	:	English
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Meeting title	:	2015 ANS Winter Meeting and Nuclear Technology Expo
Held date	:	2015/11
Location (city)	:	Washington, D.C.
Location (country)	:	U.S.A.
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Keywords	:	CeO2; MOX; Heat Capacity; Thermal Conductivity
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Cooperating Institute	:	Los Alamos National Laboratory

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Registration No. : BB20150697
JAEA Abstracts No. :
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