Journal
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
Volume 37, Issue 9, Pages 3115-3124Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.jeurceramsoc.2017.03.052
Keywords
Additive manufacturing; Templated grain growth; Local particle orientation; Heterogeneously textured microstructure; Numerical CFD-Simulation
Categories
Funding
- Deutsche Forschungsgemeinschaft [DFG TR 250/6-1]
- Exzellenzcluster Engineering of Advanced Materials
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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. (C) 2017 Elsevier Ltd. All rights reserved.
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