| About this Abstract |
| Meeting |
2023 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2023)
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| Symposium
|
2023 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2023)
|
| Presentation Title |
Additive Manufacturing of Si-SiC Cermets by Binder Jetting with Si infiltration – Process and Material Properties |
| Author(s) |
Patryk Pawel Radyjowski, Saikamal Srinivas, Chien-Hua Chen, Benjamin Groth, Luke Phalen |
| On-Site Speaker (Planned) |
Patryk Pawel Radyjowski |
| Abstract Scope |
Siliconized Silicon Carbide (Si-SiC) is a promising material for high-temperature and high-wear applications. Additive Manufacturing (AM) of Si-SiC reduces lead times and opens the design space for complex geometries. The AM-generated SiC preform is densified using deformation-free pressure-less silicon metal infiltration. The binder jetting with high-ash binders is a high throughput, low heat AM method used for preform manufacturing. Subsequently, the binder is pyrolyzed and infiltrated by liquid silicon inside the vacuum furnace to achieve final properties. The manufacturing process is discussed, together with the investigation of minimal feature resolution capabilities. Furthermore, the mechanical strength of Si-SiC parts is studied in accordance with ASTM C1161 and including the statistical Weibull approach. Finally, a large-scale, high-temperature application of the described process is presented in manufacturing a 10in diameter by 10in tall Swiss-roll style combustor targeted at flare incineration. |
| Proceedings Inclusion? |
Definite: Post-meeting proceedings |