Thermal expansion of PuO$$_{2}$$
内田 哲平; 砂押 剛雄*; 小無 健司*; 加藤 正人
Uchida, Teppei; Sunaoshi, Takeo*; Konashi, Kenji*; Kato, Masato
Experiment and simulation studies on physical properties of actinide oxides have been carried out. Thermal expansion is important data to evaluate the various properties from molecular dynamics (MD) simulation. In this study, thermal expansion of PuO$$_{2}$$ was evaluated by experiment and MD simulation. In the experimental study, thermal expansion of PuO$$_{2.00}$$ pellet was determined by a dilatometer in the temperature range of 300-1923 K. In the MD simulation, Born-Mayer-Huggins interatomic potential with a partially ionic model and Morse potential were employed. Lattice constants of PuO$$_{2}$$ were evaluated in the temperature range of 300-2800 K by MD simulation, and thermal expansion was evaluated. The experimental data was good agreement with the MD simulation result. Evaluation formula for thermal expansion of PuO$$_{2}$$ in the temperature range of 300-2800 K was derived from both data.
使用言語 : English
掲載資料名 : Journal of Nuclear Materials
: 452
: 1-3
ページ数 : p.281 - 284
発行年月 : 2014/09
出版社名 : Elsevier
発表会議名 : E-MRS 2012 Spring Meeting
開催年月 : 2012/05
開催都市 : Strasbourg
開催国 : France
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キーワード : no keyword
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登録番号 : BB20112683
抄録集掲載番号 : 42000875
論文投稿番号 : 14532
Accesses  (From Jun. 2, 2014)
- Accesses
分野:Materials Science, Multidisciplinary
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