Thermal expansion of PuO2

Teppei Uchida, Takeo Sunaoshi, Kenji Konashi, Masato Kato

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)


Linear thermal expansion of PuO2.00 was evaluated by an experiment and a molecular dynamics (MD) simulation. In the experiment, thermal expansion of a sintered PuO2.00 pellet of 95.0%T.D. was measured with a dilatometer in the temperature range from 300 K to 1923 K. In the MD simulation, lattice constants of PuO2 were evaluated in the temperature range from 300 K to 2800 K, and then the thermal expansion was evaluated. The experimental thermal expansion data were in good agreement with the MD simulation results. A suitable equation for thermal expansion of PuO 2 in the temperature range from 300 K to 2800 K was derived from both data sets.

Original languageEnglish
Pages (from-to)281-284
Number of pages4
JournalJournal of Nuclear Materials
Issue number1-3
Publication statusPublished - 2014 Sept


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