About this Abstract |
Meeting |
2022 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2022)
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Symposium
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2022 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2022)
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Presentation Title |
Additive Manufacturing of Graphite Structures
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Author(s) |
Moein Mohammadi, Samuel Choi, Prarik Koirala, Gehan Jayatilaka, Mehran Tehrani |
On-Site Speaker (Planned) |
Moein Mohammadi |
Abstract Scope |
This presentation discusses the design and use of a printable, sustainable, aqueous paste for room-temperature, direct ink writing (DIW) of complex structures. Graphite-containing pastes with controlled rheology were formulated, additively manufactured (AM), and then dried in air at three drying rates (slow, medium, fast). They were then characterized using spectroscopy and microscopy analysis. The compressive strength of AM graphite structures reached 5.8±0.6 MPa with almost no significant effect from drying rates. Carbonization of the AM parts increased the electrical conductivity by more than an order of magnitude to ~2.4×103 S m-1. In addition, it enabled the fabrication of nearly pure graphite structures for possible use in electrical discharge machining (EDM), electrochemical machining (ECM), high-temperature customized sealing, and energy conversion and storage. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |