|About this Abstract
||MS&T21: Materials Science & Technology
||Additive Manufacturing of High and Ultra-High Temperature Ceramics and Composites: Processing, Characterization and Testing
||Additive Slurry Drying as a Novel Method for Realizing Large Ceramic Components Using AM
||Johannes Homa, Yannik Zieger, Martin Schwentenwein, Shawn M. Allan
|On-Site Speaker (Planned)
||Shawn M. Allan
AM of ceramic materials is steadily gaining interest and importance for a multitude of different applications. Two of the obstacles in this area are the comparably long post-processing times for debinding and sintering of printed green parts and the limitation to rather small geometries.
To overcome these issues, this contribution will focus on a novel approach to structure water-based ceramic suspensions that allows printing and subsequent sintering of large and bulky components. By using a lithographic exposure process using a wavelength in the IR region the thermal energy that is generated is exploited to partially dry the suspensions and consolidate the green part with a high green density. For alumina, the resulting density and strength data is on the same level as for the respective conventional analogues. This process can also be used for highly light absorbing powder and hence, can be used as well for UHTCs.
||Planned: Other (journal publication, etc.; describe below)