Powder Characteristics on the Rheological Performance of Resin-based Zirconia Suspension for Stereolithography

作     者：LI Xing-Bang ZHONG He ZHANG Jing-Xian DUAN Yu-Sen JIANG Dong-Liang LI Xing-Bang;ZHONG He;ZHANG Jing-Xian;DUAN Yu-Sen;JIANG Dong-Liang

作者机构：State Key Laboratory of High Performance Ceramics and Superfine MicrostructureShanghai Institute of CeramicsChinese Academy of SciencesShanghai 200050China University of Chinese Academy of SciencesBeijing 100049China Suzhou Institute of SICCAS(Shanghai Institute of CeramicsChinese Academy of Sciences)Taicang 215499China 

出 版 物：《无机材料学报》 (Journal of Inorganic Materials)

年 卷 期：2020年第35卷第2期

页      面：231-235页

核心收录：

学科分类：080503[工学-材料加工工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 0702[理学-物理学] 

基　　金：National Key Research and Development Program of China(2017YFB0310400) National Natural Science Foundation of China(51572277,51702340) Shanghai Sailing Program(17YF1428800) Natural Science Foundation of Shanghai(17ZR1434800)。 

主　　题：zirconia ceramic stereolithography slurry rheological properties 

摘      要：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 slurries.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.