2020 Annual Meeting

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Oral presentation

V. Nuclear Fuel Cycle and Nuclear Materials » 501-2 Nuclear Fuel and the Irradiation Behavior

[2A01-03] Microstrucuture Change and Oxygen Potential of Fuels

Tue. Mar 17, 2020 10:00 AM - 10:50 AM Room A (Lecture Bildg. L 1F L-4)

Chair:Kazuo Kakiuchi(JAEA)

10:15 AM - 10:30 AM

[2A02] Defect equilibria and oxygen potential of PuO2 and CeO2

*Masato Kato1, Hiroki Nakamura1, Masashi Watanabe1, Masahiko Machida1 (1. JAEA)

Keywords:PuO2, CeO2, point defect, oxygen potential

It is well-known that both oxide of PuO2 and CeO2 have fluorite structure and nonstoichiometric compound. CeO2 is used in various experimets as simulated material of PuO2, because properties of both materials are almost same. In this work, defect formation energies are calculated by DFT, and defect equilibria and oxygen potential were evaluated.