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Open AccessArticle

Ceramic-Based 4D Components: Additive Manufacturing (AM) of Ceramic-Based Functionally Graded Materials (FGM) by Thermoplastic 3D Printing (T3DP)

1
Processes and Components, Fraunhofer Institute for Ceramic Technologies and Systems (IKTS), 01277 Dresden, Germany
2
Fraunhofer Singapore, Singapore 639798, Singapore
*
Author to whom correspondence should be addressed.
Materials 2017, 10(12), 1368; https://doi.org/10.3390/ma10121368
Received: 10 October 2017 / Revised: 9 November 2017 / Accepted: 25 November 2017 / Published: 28 November 2017
(This article belongs to the Special Issue NextGen Materials for 3D Printing)
In our study, we investigated the additive manufacturing (AM) of ceramic-based functionally graded materials (FGM) by the direct AM technology thermoplastic 3D printing (T3DP). Zirconia components with varying microstructures were additively manufactured by using thermoplastic suspensions with different contents of pore-forming agents (PFA), which were co-sintered defect-free. Different materials were investigated concerning their suitability as PFA for the T3DP process. Diverse zirconia-based suspensions were prepared and used for the AM of single- and multi-material test components. All of the samples were sintered defect-free, and in the end, we could realize a brick wall-like component consisting of dense (<1% porosity) and porous (approx. 5% porosity) zirconia areas to combine different properties in one component. T3DP opens the door to the AM of further ceramic-based 4D components, such as multi-color, multi-material, or especially, multi-functional components. View Full-Text
Keywords: additive manufacturing (AM); functionally graded materials (FGM); thermoplastic 3D printing (T3DP); ceramics; ceramic-based 4D components; zirconia; graded microstructure additive manufacturing (AM); functionally graded materials (FGM); thermoplastic 3D printing (T3DP); ceramics; ceramic-based 4D components; zirconia; graded microstructure
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Scheithauer, U.; Weingarten, S.; Johne, R.; Schwarzer, E.; Abel, J.; Richter, H.-J.; Moritz, T.; Michaelis, A. Ceramic-Based 4D Components: Additive Manufacturing (AM) of Ceramic-Based Functionally Graded Materials (FGM) by Thermoplastic 3D Printing (T3DP). Materials 2017, 10, 1368.

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