Thermal Conductivity of ThO<SUB>2</SUB>-UO<SUB>2</SUB> System
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概要
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The thermal diffusivity of the ThO2-UO2 system in solid solution was measured by laser pulse method at temperatures ranging from 20° to 500°C. Reproducibility of the data was confirmed to be within 3%. The compositions of the samples were ThO<SUB>2</SUB>, ThO<SUB>2</SUB>-1%UO<SUB>2</SUB>, ThO<SUB>2</SUB>-5%UO<SUB>2</SUB> and ThO<SUB>2</SUB>-10%UO<SUB>2</SUB>.<BR>The thermal conductivity was calculated from measured thermal diffusivity data and the specific heat data available in literature and corrected to zero porosity by using Loeb's equation, in which the shape factor is unity.<BR>The values on ThO<SUB>2</SUB> thus obtained agreed very well with the data found in literature, throughout the range of temperature of the experiments. The thermal conductivity of ThO<SUB>2</SUB>, ThO<SUB>2</SUB>-1%UO<SUB>2</SUB>, ThO<SUB>2</SUB>-5%UO<SUB>2</SUB> and ThO<SUB>2</SUB>-10%UO<SUB>2</SUB>, at 20°C, were 0.0312, 0.0288, 0.247 and 0.0184 cal•cm/sec•°C.cm<SUP>2</SUP>, respectively.
- 一般社団法人 日本原子力学会の論文
著者
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Namba Susumu
The Institute Of Physical And Chemical Research
-
Takahashi Yoichi
Department Of Applied Chemistry Chuo University
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Murabayashi Masayuki
Department of Environmental Chemistry, Institute of Environmental Science and Technology, Yokohama N
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Mukaibo Takashi
Department of Applied Chemistry Faculty of Engineering The University of Tokyo
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