About this Abstract |
| Meeting |
2027 TMS Annual Meeting & Exhibition
|
| Symposium
|
Field-Assisted Material Processing and Solidification
|
| Presentation Title |
Ultrafast printing and sintering: an aqueous carboxymethylcellulose approach coupled with scalable UHS and numerical modeling. |
| Author(s) |
Charles Maniere, Flavie Lebas, Sylvain Marinel |
| On-Site Speaker (Planned) |
Charles Maniere |
| Abstract Scope |
Direct Ink Writing (DIW) is a highly promising 3D printing technique, as its aqueous-based suspensions are fully compatible with ultra-fast printing, debinding, and sintering. In this study, we specifically formulated a carboxymethylcellulose-based ceramic suspension for high-shear, ultra-fast printing speed (100 mm/s) of parts that can be produced in just a few seconds to minutes. These parts can then be rapidly dried, debound, and sintered using scalable ultra-fast high-temperature sintering methods. The latter was achieved in an SPS prototype furnace for oxide ceramics and in a small-scale furnace for ultra-high-temperature ceramics. These results demonstrate the feasibility of a fully accelerated ceramic production process, from printing to sintering.
In this context, multiphysics simulation is particularly well-suited, as the UHS (Ultrafast Hight temperature Sintering) process is abrupt and highly heterogeneous, potentially leading to thermal gradients, density variations, and cracks depending on the part’s geometry and its exposure to incoming thermal radiation. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Ceramics, Modeling and Simulation |