4. Conclusions
In this study, a series of atomistic simulations of zirconia were conducted for both monoclinic and tetragonal
phases, using the first principles theory. Thermodynamic properties of m-ZrO2 were calculated and highly
compatible with both experimental and simulation results in literature. A phase transition of from tetragonal to
cubic phase at 37 GPa compressive pressure was identified, based on the tetragonal distortion parameter