Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7894764 | Corrosion Science | 2016 | 8 Pages |
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 ZrO2 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 9a0-2H and sub-oxides with hcp and fcc ordered structure were formed. When the Zr/O atomic ratio was 0.8, monoclinic ZrO2 was detected.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Zhen Wang, Bangxin Zhou, Boyang Wang, Meiyi Yao, Qiang Li, Jiao Huang,