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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Schlacher, Josef
Montanuniversität Leoben
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (7/7 displayed)
- 20243D-printed alumina-based ceramics with spatially resolved porositycitations
- 2024Prediction of thermal shock induced cracking in multi-material ceramics using a stress-energy criterioncitations
- 2023Stereolithographic 3D Printing of Ceramics: Challenges and Opportunities for Structural Integritycitations
- 2023High-temperature fracture behaviour of layered alumina ceramics with textured microstructurecitations
- 2022Contact damage tolerance of alumina‐based layered ceramics with tailored microstructurescitations
- 2021Additive manufacturing of high-strength alumina through a multi-material approachcitations
- 2020Strength of additive manufactured aluminacitations
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article
Strength of additive manufactured alumina
Abstract
The strength of 3D-printed alumina parts fabricated using the Lithography-based Ceramic Manufacturing (LCM) technology is investigated. The influence of the sintering parameters, printing direction, surface condition (i.e. machined or as-printed), and/or geometry on the strength distribution is studied under uniaxial and biaxial bending tests. Weibull parameters, i.e. characteristic strength and Weibull modulus, are determined and compared between the different samples. Experimental findings show that samples sintered at higher temperatures yield higher Weibull modulus, associated with a more homogeneous microstructure. Fractographic analyses reveal the influence of surface finish (as-printed or machined) on strength and show the importance of reporting testing configuration along with printing direction to assess the mechanical response of 3D-printed parts. Based on these results, manufacturing recommendations are given which shall advance the progress in optimization of alumina ceramics fabricated using the LCM technology.