测量了采用等离子喷涂工艺制备的ZrO2 /NiCrAl系功能梯度材料水平面与垂直面的分形维数 ,探索了整个等离子喷涂过程计算机模拟与分形表征之间的关系 ,初步建立了该材料分形维数与宏观性能之间的定量关系。结果表明 ,随NiCrAl含量的升高 ,分形维数呈曲线变化 ,分形维数与抗弯强度具有较好的对应关系 ;在NiCrAl为 2 0 %～ 4 0 %附近存在渗流区域 ,抗弯强度出现突变 The fractal dimensions of horizontal and vertical surfaces of ZrO2 / NiCrAl functional graded material prepared by plasma spraying were measured. The relationship between the computer simulation and fractal characterization of the whole plasma spraying process was explored. The fractal dimension and macro The quantitative relationship between performance. The results show that the fractal dimension changes with the increase of NiCrAl content, and the fractal dimension has a good correspondence with the bending strength. When NiCrAl is in the vicinity of 20% ~ 40%, the flexural strength appears mutation