The initial oxidation of Zircaloy-4 in lithiated water under autoclave conditions as examined by TEM
Source abstract
Abstract
Abstract TEM thin foil specimens prepared using Zircaloy-4 coarse-grained samples were corroded by autoclaving at 250 °C and 280 °C in lithated water for a short time exposure, and the initial oxidation process before the formation of ZrO 2 was investigated by TEM. The results show a variation of the crystal structure along with the increase of oxygen contents at the initial oxidation stage. When the Zr/O atomic ratio reached 6–7, 3 and 1, a commensurable long period super-lattice 9a 0 -2H and sub-oxides with hcp and fcc ordered structure were formed. When the Zr/O atomic ratio was 0.8, monoclinic ZrO 2 was detected.
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Research context
OpenAlex topics: Nuclear Materials and Properties · Radioactive element chemistry and processing · Electronic and Structural Properties of Oxides
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References (38)
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