Abstract
The manufacturing of alumina ceramics with auxetic and macro-cellular lattice structure and with textured microstructure was achieved by using robocasting and TGG-technique (Templated Grain Growth). After sintering at different temperatures a grain growth effect was observed in robocast ceramic filaments, which showed a microstructural gradient in particle orientation and porosity from the edge to the middle. The particle orientation during robocasting was analytically and numerically investigated by calculating the inhomogeneous shear rate distribution in the extrusion nozzle.
| Original language | English |
|---|---|
| Pages (from-to) | 3115-3124 |
| Number of pages | 10 |
| Journal | Journal of the European Ceramic Society |
| Volume | 37 |
| Issue number | 9 |
| DOIs | |
| Publication status | Published - 1 Aug 2017 |
Keywords
- Additive manufacturing
- Heterogeneously textured microstructure
- Local particle orientation
- Numerical CFD-Simulation
- Templated grain growth
ASJC Scopus subject areas
- Ceramics and Composites
- Materials Chemistry
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Cite this
Fu, Z., Freihart, M., Wahl, L., Fey, T., Greil, P., & Travitzky, N. (2017). Micro- and macroscopic design of alumina ceramics by robocasting. Journal of the European Ceramic Society, 37(9), 3115-3124. https://doi.org/10.1016/j.jeurceramsoc.2017.03.052