Zirconium oxide has high toughness, high bending strength and wear resistance, excellent heat insulation features, and thus is widely applied in engineering ceramic field. Usually different types of stabilizers are mixed to make different zirconium ceramics, e.g. partially stabilized zirconia (PSZ). When the stabilizers are CaO, MgO, and Y2O3, it is indicated as Ca-PSZ, Mg-PSZ, and Y-PSZ.