Effect of Porosity on the Thermal Conductivity of ThO<SUB>2</SUB>

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概要

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• The effect of porosity on the thermal conductivity of sintered ThO<SUB>2</SUB> of densities ranging from 90 to 95 % of theoretical density was investigated at 20°C. The thermal conductivity was determined by means of laser pulse. Discrepancies were observed between the experimental results and the relation derived by Loeb. This discrepancy was explained by applying a modified Maxwell formula derived by Brailsford <I>et al</I>.<BR>The samples were also examined metallographically. It is concluded that the existence of fluid continuous regions contribute significantly to the thermal resistance of such materials as ThO<SUB>2</SUB>.

• 一般社団法人 日本原子力学会の論文

著者

• Takahashi Yoichi

  Department Of Applied Chemistry Chuo University

• Murabayashi Masayuki

  Department of Environmental Chemistry, Institute of Environmental Science and Technology, Yokohama N

• Mukaibo Takashi

  Department of Applied Chemistry Faculty of Engineering The University of Tokyo

• MURABAYASHI Masayuki

  Department of Nuclear Engineering, Faculty of Engineering, University of Tokyo

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