Thermal expansion measurement of (U,Pu)O $_{2-x}$ in oxygen partial pressure-controlled atmosphere

Kato, Masato ; Ikusawa, Yoshihisa ; Sunaoshi, Takeo*; Nelson, A. T.*; McClellan, K. J.*

Thermal expansion of (U $_{0.7}$ Pu $_{0.3}$ )O $_{2-x}$ (x = 0, 0.01, 0.02, 0.03) and (U $_{0.52}$ Pu $_{0.48}$ )O $_{2.00}$ was measured with a dilatometer in an oxygen partial pressure-controlled atmosphere. The oxygen partial pressure was controlled to hold a constant oxygen-to-metal ratio in the (U,Pu)O $_{2-x}$ during the measurement. Thermal expansion slightly increased with the decrease in oxygen-to-metal ratio. The relationship was derived to describe thermal expansion.

Language	:	English
Journal	:	Journal of Nuclear Materials
Volume	:	469
Number	:
Pages	:	p.223 - 227
Publication Year/Month	:	2016/02
Meeting title	:
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Patent information	:
PDF	:
Paper URL	:	https://doi.org/10.1016/j.jnucmat.2015.11.048
DOI for research data	:
Keywords	:	MOX Fuel; 熱膨張率
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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InCites™	:	Percentile:71.62 Category:Materials Science, Multidisciplinary
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Registration No. : AA20150319
JAEA Abstracts No. : 44001194
Paper Submission No. : 17876

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Thermal expansion measurement of (U,Pu)O in oxygen partial pressure-controlled atmosphere

Thermal expansion measurement of (U,Pu)O $_{2-x}$ in oxygen partial pressure-controlled atmosphere