An interesting oxidation-reduction phenomenon between the Zr(Cr,Fe)2 Laves phase and Cr2O3 under high temperature
Source abstract
Abstract
Studying Zr(Cr, Fe) 2 Laves phase oxidation is vital for deepening our understanding of the oxidation mechanism of accident tolerant fuel (ATF) Cr-coated Zr and Zr-based alloys. Here, an interesting oxidation phenomenon of Zr(Cr, Fe) 2 Laves phase was confirmed for the first time. Meanwhile, this oxidation was accompanied by the Cr 2O 3 reduction. The lattice oxygen was transferred from Cr 2O 3 to Zr(Cr, Fe) 2 Laves phases, and Cr 2O 3 was transformed into Cr while Zr(Cr, Fe) 2 was oxidized into m-ZrO 2, Cr and Fe. The reaction Gibbs Free energy (△ r G m Θ ) value is around −980 kJ/mol without considering Fe, which verifies the feasibility of this interesting oxidation-reduction phenomenon.
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Research context
OpenAlex topics: Nuclear Materials and Properties · Thermal and Kinetic Analysis · High-Temperature Coating Behaviors
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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