Phase transition temperature of fluorite-type ZrO2Y2O3 solid solutions containing 8–44 mol% Y2O3
Abstract The phase transition temperature of fluorite-type ZrO 2 -Y 2 O 3 solid solutions containing 8–44 mol% Y 2 O 3 was determined by analyzing the electrical conductance data obtained from sintered samples. In the composition range of 8–17.5 mol% Y 2 O 3 , the phase transition temperature ( Fss → Tss + Fss and Fss → Mss + Fss ) could be expressed as follows: t = 5196.9184[ ln ( ln X )] 2 − 12538.894[ ln ( ln X )] + 7858.1123, where t is the phase transition temperature (°C), and X is the Y 2 O 3 content (mol%).