About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Biological Materials Science
|
| Presentation Title |
Bioinspired Bicontinuous Ceramic Lattices via Additive Manufacturing-Assisted Dipcasting |
| Author(s) |
Yang Geng, Zian Jia, Anmol Dash, Ling Li |
| On-Site Speaker (Planned) |
Yang Geng |
| Abstract Scope |
The bicontinuous porous stereom of echinoderms exemplifies nature’s ability to build lightweight structural ceramics via biomineralization. Inspired by this paradigm, we developed an additive manufacturing (AM)-assisted dip casting method to fabricate dual-channel bicontinuous ceramic lattices with programmable composition, density, macro-architecture, and microstructures. The process decouples precursor chemistry from lattice construction: polymeric lattice templates produced by AM technology are conformally infiltrated with ceramic sol through capillary, followed by high-temperature sintering. Thus, the resulting architecture features two isolated but individually continuous channels–an internal lumen running through the strut and an external airflow pathway, which maximizes surface area while minimizing mass. The effects of processing parameters on the microstructures were systematically studied via experimental and modeling methods. The compression tests demonstrated that the lattices retain high specific strength and modulus despite high porosities. This bio-inspired strategy offers a versatile platform for lightweight heat exchangers, exhaust catalysts, and other multifunctional ceramic devices. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Ceramics, Additive Manufacturing, Other |