ZrO2 has three solid phases, monoclinic ( ), tetragonal ( and cubic ( ), a liquid phase and a vapor phase. All three solid phases can be sublimed but only the cubic phase can be melted. The normal melting and boiling temperatures are approximately 2500 and 35000C. The transformations monoclinic tetragonal cubic liquid are all endothermic.
The densities of the phases are related by tetragonal > monoclinic > cubic > liquid
Construct a possible pressure-temperature phase diagram for ZrO2, justifying the slopes and positions of any phase boundaries and positions of any triple points.
This question belongs to chemistry and discusses about ZrO2 three solid phases and to construct a possible pressure-temperature phase diagram for ZrO2.
Total word count: Image
Download Full Solution