为获得与实验数据有很好自洽性的ZrO-TiO_2系相图,在评估ZrO_2-TiO_2系现有的相图和热力学数据的基础上采用CALPHAD技术进行了相图的优化计算,并对一些存在分歧的相进行了分析。对α-ZrO_2,β-ZrO_2,γ-ZrO_2,β-(Zr,Ti)_2O_4,α-(Zr,Ti)_2O_4,ZrTi_2O_6,金红石型TiO_2和液相分别采用了置换溶液模型以及化合物能量模型进行了处理。计算结果与相图的大部分最新的实验结果在误差范围内吻合较好。 In order to obtain the phase diagram of ZrO-TiO_2 with good self-consistency with the experimental data, CALPHAD technique was used to optimize the phase diagram based on the evaluation of the existing phase diagram and thermodynamic data of ZrO_2-TiO_2 system. There are differences in the phase were analyzed. The displacement solution model and the compound energy model were used for α-ZrO_2, β-ZrO_2, γ-ZrO_2, β-ZrO_2, α_ (Zr, Ti) _2O_4, ZrTi_2O_6, rutile TiO_2 and liquid phase respectively Deal with. Most of the results of the calculation and the phase diagram of the latest experimental results agree well with the error range.