基于DLP光固化成型的3D打印技术在制备复杂形状的高性能陶瓷材料具有高精度、成型速度快、易实现陶瓷致密化的独特优势，本项目将围绕高固含量、高均匀性、低粘度陶瓷浆料的制备这一核心问题，创新性地提出利用“双偶联法”改性陶瓷粉体的表面改性方法，利用原位实时红外等手段来原位监控氧化铝陶瓷浆料的光固化过程并建立光固化动力学模型，基于分析型透射电子显微学理论研究3D打印透明陶瓷的打印层间界面多维度缺陷特征，并揭示3D打印透明陶瓷制备工艺-显微结构-打印层间界面多维度缺陷-陶瓷力学、光学性能之间的关联关系。对烧结行为进行预测、监控并建立烧结动力学窗口，对透明氧化铝光学、力学性能、原位断裂学行为进行研究。本项目的开展有望通过3D打印解决透明氧化铝异形陶瓷部件高精密无模成型，并为3D打印在制备高性能、复杂形状陶瓷部件方面积累一定的理论基础和科学依据。

DLP-SLA-based 3D printing technique possesses unique advantages in preparation of complex-shaped and high-performance ceramic materials, i.e., high precision, fast shaping,and easy to realize ceramic densification.This project will encompassment the core problems of high solid content, high homogeneity and slurry with low viscosity, the surface modification of double coupling method is innovatively proposed. Characterizatin methods such as in situ real-time FTIR are ultilized to montior the photopolymerization process and set the polymerization kintics model.The characteristics of the multi-dimensional defects of the printed interlaminar interfaces of the 3D printed transparnt alumina are investigated via analytical TEM theory. And the relationship between the preparation technique, the microstructure , the mulitidimensional defects of the printed interlaminar interfaces and the mechanical/optical properties will be revealed. The sintering behaviors will be forecasted and monitored, and the sintering kintics window will be set. The optical, mechanical properties and in-situ fracture behaviors will be studied.The projects undertaken is expected to resolve the non-mold shaping of transparent alumina parts with complicated shape and high precision via the approach of 3D printing.The theoretical basis and scientific basis will be accumulated for 3D printing in the preparation of high-performance and complicated-shaped ceramics parts.