Rapid Solidification of ZrO2–8 mol % Y2O3 Melt under Conditions of Stepwise Reduction of Heating. Determination of the Liquidus and Solidus Temperatures

Investigations are conducted into the process of crystallization of a bath with a ZrO2–8 mol % Y2O3 melt which is produced by local heating of ceramic by concentrated laser radiation and solidifies when the radiation power decreases by 20–30%. It is demonstrated that a gently sloping temperature plateau is observed in the process of solidification, which may be used to estimate the liquidus temperature.