TY  - JOUR
AU  - Cao, Xueqiang
AU  - Vassen, Robert
AU  - Wang, Jinshuang
AU  - Zou, Binglin
AU  - Li, Shibao
AU  - Hui, Yu
AU  - Yuan, Jieyan
AU  - Song, Wenjia
AU  - Cao, Qin
AU  - Jiang, Jianing
AU  - Deng, Longhui
AU  - Dong, Shujuan
TI  - Degradation of zirconia in moisture
JO  - Corrosion science
VL  - 176
SN  - 0010-938X
CY  - Amsterdam [u.a.]
PB  - Elsevier Science
M1  - FZJ-2020-03299
SP  - 109038 -
PY  - 2020
AB  - Zirconia especially stabilized by Y2O3 (YSZ) is an important and popularly used material. We have observed the degradation of YSZ in moisture, and have also revealed the degradation mechanism which could be related to the following three chemical processes: (1) reaction of water with the residual Y2O3 which is not incorporated into the crystal lattice of ZrO2; (2) corrosion of YSZ by water; (3) depletion of Y3+ from the crystal lattice by water molecule due to oxygen vacancies. A core/shell structure of ZrO2/Y2O3 in YSZ crystalline grains has been proved. Calcination of YSZ above 1100 °C can prevent the degradation.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000596653600003
DO  - DOI:10.1016/j.corsci.2020.109038
UR  - https://juser.fz-juelich.de/record/884894
ER  -