Influence of ceramic Kelvin Cell's strut shape on mechanical properties
Swantje Simon,
David Köllner,
Patrizia Hoffmann,
Elisabeth Keck,
Isabella Spath,
Maximilian Meyse,
Tobias Fey
Affiliations
Swantje Simon
Department of Materials Science and Engineering (Institute of Glass and Ceramics), Friedrich-Alexander-Universität Erlangen-Nürnberg, Martensstr. 5, D-91058, Erlangen, Germany
David Köllner
Department of Materials Science and Engineering (Institute of Glass and Ceramics), Friedrich-Alexander-Universität Erlangen-Nürnberg, Martensstr. 5, D-91058, Erlangen, Germany
Patrizia Hoffmann
Department of Materials Science and Engineering (Institute of Glass and Ceramics), Friedrich-Alexander-Universität Erlangen-Nürnberg, Martensstr. 5, D-91058, Erlangen, Germany
Elisabeth Keck
Department of Materials Science and Engineering (Institute of Glass and Ceramics), Friedrich-Alexander-Universität Erlangen-Nürnberg, Martensstr. 5, D-91058, Erlangen, Germany
Isabella Spath
Department of Materials Science and Engineering (Institute of Glass and Ceramics), Friedrich-Alexander-Universität Erlangen-Nürnberg, Martensstr. 5, D-91058, Erlangen, Germany
Maximilian Meyse
Department of Materials Science and Engineering (Institute of Glass and Ceramics), Friedrich-Alexander-Universität Erlangen-Nürnberg, Martensstr. 5, D-91058, Erlangen, Germany
Tobias Fey
Department of Materials Science and Engineering (Institute of Glass and Ceramics), Friedrich-Alexander-Universität Erlangen-Nürnberg, Martensstr. 5, D-91058, Erlangen, Germany; Frontier Research Institute for Materials Science, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya, 466-8555, Japan; Corresponding author. Department of Materials Science and Engineering (Institute of Glass and Ceramics), Friedrich-Alexander-Universität Erlangen-Nürnberg, Martensstr. 5, D-91058, Erlangen, Germany.
The replica technique is one of the most established manufacturing methods of highly porous scaffolds for bone tissue engineering. Despite a multitude of possible templates, this method is limited in terms of reproducibility and periodicity. We overcome this issue by 3D-printing of designed periodic polymer templates with varying strut shape and thickness which we further process with the replica technique to obtain cellular ceramics with adjustable micro- and macrostructure. The periodic structure (Kelvin cells) was created using computer-aided design (CAD) software. These 3D rigid polymer structures were coated with alumina slurry and transformed to ceramic structures. This combination of polymer 3D-printing and the replica technique enables the application-specific production of cellular structures in a flexible and cost-effective process.
