TY - JOUR
T1 - Effect of TiO2addition on phase stability and sintering behavior of 1 mol%La2O3-2 mol%Gd2O3-2 mol%Yb2O3-6 mol%Y2O3co-doped ZrO2
AU - Li, Li
AU - Lei, Xingeng
AU - Wang, Quansheng
AU - Zhao, Hanqi
AU - Ning, Xianjin
N1 - Publisher Copyright:
© Published under licence by IOP Publishing Ltd.
PY - 2022
Y1 - 2022
N2 - In this study, 1 mol%La2O3-2 mol%Gd2O3-2 mol%Yb2O3-6 mol%Y2O3 co-doped ZrO2 (LGYYSZ) with 0 mol%, 5 mol% and 10 mol% TiO2 additions were synthesised by solid-state reactions. The effect of TiO2 addition on the phase stability of LGYYSZ and its sintering behaviour at 1500 °C were investigated using XRD, SEM and EDS. The results show that the eutectic temperature of LGYYSZ decreases with increasing TiO2 content. SEM, EDS and XRD results show that the TiO2 addition is reacted with the La2O3 in LGYYSZ to form a orthorhombic La2Ti2O7 phase. When held at 1500 °C, La2Ti2O7 is precipitated on the surface of the samples by evaporation-condensation mechanism. This resulted in the anti-sintering properties of LGYYSZ at 1500 °C decreasing with increasing TiO2 content.
AB - In this study, 1 mol%La2O3-2 mol%Gd2O3-2 mol%Yb2O3-6 mol%Y2O3 co-doped ZrO2 (LGYYSZ) with 0 mol%, 5 mol% and 10 mol% TiO2 additions were synthesised by solid-state reactions. The effect of TiO2 addition on the phase stability of LGYYSZ and its sintering behaviour at 1500 °C were investigated using XRD, SEM and EDS. The results show that the eutectic temperature of LGYYSZ decreases with increasing TiO2 content. SEM, EDS and XRD results show that the TiO2 addition is reacted with the La2O3 in LGYYSZ to form a orthorhombic La2Ti2O7 phase. When held at 1500 °C, La2Ti2O7 is precipitated on the surface of the samples by evaporation-condensation mechanism. This resulted in the anti-sintering properties of LGYYSZ at 1500 °C decreasing with increasing TiO2 content.
UR - http://www.scopus.com/inward/record.url?scp=85145433983&partnerID=8YFLogxK
U2 - 10.1088/1742-6596/2383/1/012122
DO - 10.1088/1742-6596/2383/1/012122
M3 - Conference article
AN - SCOPUS:85145433983
SN - 1742-6588
VL - 2383
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
IS - 1
M1 - 012122
T2 - 2022 8th International Conference on Mechanical Engineering, Materials and Automation Technology, MMEAT 2022
Y2 - 27 May 2022 through 29 May 2022
ER -