Fabrication of SiC ceramic architectures using stereolithography combined with precursor infiltration and pyrolysis. Issue 11 (1st August 2019)

• Record Type: Journal Article
• Authors: He, Rujie; Ding, Guojiao; Zhang, Keqiang; Li, Ying; Fang, Daining
• Is Part Of: Ceramics international. Volume 45:Issue 11(2019)
• Page Start: 14006
• Page End: 14014
• Publication Date: 2019-08-01
• Subjects: Silicon carbide -- Stereolithography -- Additive manufacturing -- Precursor infiltration and pyrolysis; Ceramics -- Periodicals; Céramique industrielle -- Périodiques; Ceramics; Periodicals; Electronic journals; 666
• DOI: 10.1016/j.ceramint.2019.04.100
• Languages: English
• ISSNs: 0272-8842

Abstract

Abstract: Stereolithography based additive manufacturing provides a new route to produce ceramic architectures with complex geometries. In this study, 3D structured SiC ceramic architectures were fabricated by stereolithography based additive manufacturing combined with precursor infiltration and pyrolysis (PIP). Firstly, photosensitive SiC slurry was prepared. Then, stereolithography was conducted to fabricate complex-shaped green SiC parts. Polymer burn-out was subsequently performed, and porous SiC preforms were produced. After that, precursor infiltration and pyrolysis was used to improve the density and strength. Finally, 3D-structured SiC ceramic architectures with high accuracy and quality were obtained. It is believed that this study can give some fundamental understanding for the additive manufacturing of SiC ceramic structures.