Evidence of a phase transition from UO2-x to UO2+x
Source abstract
Abstract
ABSTRACT Uranium dioxide has been extensively studied for more than 70 years with regards to its importance as main nuclear fuel used worldwide. From a thermodynamic point of view, UO 2 was considered up to now as a single phase, in which point defects would explain its sharp change of oxygen potential when going from hypo to hyper-stoichiometry. Here, we demonstrate using Raman spectroscopy, that the change from hypo to hyper-stoichiometry should be considered as a phase transition. This leads us to a change of paradigm about UO 2 that is now a border between UO 2-x and UO 2+x .
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Nuclear Materials and Properties · Radioactive element chemistry and processing · Nuclear reactor physics and engineering
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (28)
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