Manufacturing process of water-soluble salt-based ceramic cores based on vat photopolymerization  

作　　者：Yuzhen Zhang Wenyan Duan Yue Gu Xingyao Sun Shan Li Bingshan Liu Gong Wang 

机构地区：[1]Key Laboratory of Space Manufacturing Technology(SMT),Technology and Engineering Center for Space Utilization,Chinese Academy of Sciences,Beijing 100094,China [2]University of Chinese Academy of Sciences,Beijing 100049,China [3]Ministry of Education Key Laboratory for Cross-Scale Micro and Nano Manufacturing,Changchun University of Science and Technology,Changchun 130022,China

出　　处：《Journal of Advanced Ceramics》2024年第5期652-665,共14页先进陶瓷（英文）

基　　金：the Youth Innovation Promotion Association of the Chinese Academy of Sciences(No.2021160);the National Natural Science Foundation of China(No.51802319);the Technology and Engineering Center for Space(No.CSU-QZKT-2019-04).

摘　　要：Water-soluble salt-based ceramic cores can be recycled and have excellent high-temperature chemical stability.In this work,vat photopolymerization was successfully applied to water-soluble salt-based ceramic cores for the first time.The powder raw materials of the printing suspension were sodium chloride and alumina.High-precision green bodies were manufactured by optimizing suspensions and parameters.In addition,the postprocessing method was optimized according to the microstructure and mechanical properties.The sintered part had a high bending strength and smooth surface.Finally,the dissolution rate and moisture resistance were compared under different dissolution and storage conditions.Compared to traditional manufacturing methods,vat photopolymerization enables the production of complex structures without molds and reduces production costs.This technology is suitable for the rapid iteration of complex structural parts and can be applied to precision parts in aerospace,military,and other technical fields with high cost-effectiveness and sustainability.

关 键 词：vat photopolymerization water-soluble salt-based ceramic cores defect formation control accuracy moisture rate 

分 类 号：TQ174.7[化学工程—陶瓷工业]