About this Abstract |
Meeting |
2021 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2021)
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Symposium
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Materials
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Presentation Title |
Binder-free Additive Manufacturing of Ceramics Using Hydrothermal-assisted Transient Jet Fusion |
Author(s) |
Fan Fei, Levi Kirby, Xuan Song |
On-Site Speaker (Planned) |
Fan Fei |
Abstract Scope |
Major ceramic additive manufacturing (AM) processes require a high concentration of organic binder to selectively bond ceramic particles into green parts, which leads to issues such as low density and unreliable properties in resulting components. In this work, a new ceramic AM process named hydrothermal-assisted transient jet fusion (HTJF) is introduced, which fuses particles through selectively depositing a volatile dissolving ink, such as deionized water, into a pressurized / heated powder bed, triggering hydrothermal-assisted mass transfer between particles and interparticle pores. A prototype system is presented to demonstrate the binder-free fabrication of ceramics. The effects of process parameters on macroscopic properties of printed parts and particle-scale mass transfer in the HTJF process are studied using experimental and computational techniques. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |