TY - JOUR
T1 - Degradation of yttria stabilized zirconia at 370 K under a low applied stress
AU - Li, Junguo
AU - Zhang, Lianmeng
AU - Shen, Qiang
AU - Hashida, Toshiyuki
PY - 2001/1/15
Y1 - 2001/1/15
N2 - The tetragonal-to-monoclinic phase transformation in ZrO2-3mol.%Y2O3 containing 0-5% Al2O3 during aging in hot water (370 K) under 100 MPa stress is investigated. It is found that while a small tensile stress accelerates the degradation, a compressive stress has little affect on the degradation. The degradation of PSZ under tensile stress is considered to be caused by the reaction between Y2O3 and H2O. Small amount of Al2O3 addition does not change the degradation mechanism of PSZ, but it prevents further continuation of degradation when the transformed volume reaches a certain value.
AB - The tetragonal-to-monoclinic phase transformation in ZrO2-3mol.%Y2O3 containing 0-5% Al2O3 during aging in hot water (370 K) under 100 MPa stress is investigated. It is found that while a small tensile stress accelerates the degradation, a compressive stress has little affect on the degradation. The degradation of PSZ under tensile stress is considered to be caused by the reaction between Y2O3 and H2O. Small amount of Al2O3 addition does not change the degradation mechanism of PSZ, but it prevents further continuation of degradation when the transformed volume reaches a certain value.
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U2 - 10.1016/S0921-5093(00)01276-4
DO - 10.1016/S0921-5093(00)01276-4
M3 - Article
AN - SCOPUS:0035151130
SN - 0921-5093
VL - 297
SP - 26
EP - 30
JO - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing
JF - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing
IS - 1-2
ER -