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合适的树脂基陶瓷浆料的制各对陶瓷光固化成型技术而言至关重要.本文研究了氧化锆粉体的性质,包括比表面积、粒度与粒径分布、颗粒形貌等因素对树脂基浆料流变行为的影响.研究发现:粉体的比表面积是影响浆料粘度的最主要因素.选择低比表面积、形貌接近球形的粉体更容易制备出低粘度的浆料.利用Krieger-Dougherty模型研究了粉体固含量对浆料流变行为的影响.在1550℃烧结得到了相对密度为(97.83±0.33)％的氧化锆陶瓷,未发现明显的晶粒异常长大,表明基于流变学表征方法对浆料制备参数进行优化后,采用光固化技术可以制备出复杂结构、高质量的氧化锆陶瓷.“,”As for ceramic stereolithography technique,the preparation of suitable resin-based ceramic slurry is of primary importance.In this study,the effects of powder characteristics such as specific surface area,particle size and distribution,particle morphology on the rheological behavior of zirconia resin-based suspensions were investigated intensively.Results show that the specific surface area of the powder is the most important factor affecting slurry viscosity.Choosing low specific surface area and quasi-spherical shaped powder is more likely to obtain low viscosity slurties.In addition,the influence of solid loading on the flow behavior were also studied using Krieger-Dougherty model.Zirconia samples with the relative density of (97.83±0.33)％ were obtained after sintering at 1550 ℃.No obvious abnormal grain growth in the microstructure of the sintered body is observed.Results indicate that after the optimization of the processing parameters with the help of rheology characterization,complex-shaped high-quality zirconia parts can be obtained using the stereolithography technique.