Title: Revisiting the melting temperature of NpO2 and the challenges associated with high temperature actinide compound measurements
Authors: BÖHLER ROBERTWELLAND MikeDE BRUYCKER FranckBOBORIDIS KonstantinosJANSSEN ARNEELOIRDI RachelKONINGS RudyMANARA Dario
Citation: JOURNAL OF APPLIED PHYSICS vol. 111 no. 11 p. 113501 1-8
Publisher: AMER INST PHYSICS
Publication Year: 2012
JRC N°: JRC69369
ISSN: 0021-8979
URI: http://dx.doi.org/10.1063/1.4721655
http://publications.jrc.ec.europa.eu/repository/handle/JRC69369
DOI: 10.1063/1.4721655
Type: Articles in Journals
Abstract: Many refractory oxides display very high oxygen potential at temperatures close to melting (around 3000 K), ), i.e. a tendency to exchange oxygen with their environment and chemically react with it. Among others, this has been shown to be particularly true for a few actinide dioxides (e.g.: UO2, PuO2) extensively used as components of nuclear fuel. The high chemical reactivity of these materials constitutes a further safety issue in the unlikely event of uncontrolled thermal excursion in a nuclear plant. The behaviour of these oxides at temperatures approaching melting in oxidizing or reducing conditions is therefore of great interest not only from a basic materials research viewpoint, but also for the ultimate sake of nuclear reactor safety. (The rest is found in the attached file. Otherwise Pubsy gives an error message)
JRC Institute:Institute for Transuranium Elements

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