The Zro2 is a polymorph material having 3 crystalline struc- tures. At room temperature, the stable phase is the monoclinic struc- ture, also known as Baddeleyite, which is stable up to 1450 K, where the monoclinic to tetragonal transition occurs while the cubic structure is stable at temperatures higher than 2650 K prior to melting 17-20. It has been reported previously that tetragonal and be