1. Multiscale ceramic components from preceramic polymers by hybridization of vat polymerization-based technologies
- Author
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Laura Brigo, Alessandro Gandin, Paolo Colombo, Martin Schwentenwein, Giovanna Brusatin, and Johanna Schmidt
- Subjects
Two-photon laser lithography ,Ceramics ,0209 industrial biotechnology ,Stereolithography ,Materials science ,Additive manufacturing ,Biomedical Engineering ,Nanotechnology ,02 engineering and technology ,Industrial and Manufacturing Engineering ,020901 industrial engineering & automation ,Distortion ,General Materials Science ,Ceramic ,Engineering (miscellaneous) ,Lithography ,chemistry.chemical_classification ,Single component ,Preceramic polymers ,Polymer ,021001 nanoscience & nanotechnology ,Polymerization ,chemistry ,visual_art ,visual_art.visual_art_medium ,Digital Light Processing ,0210 nano-technology - Abstract
A novel approach to fabricate ceramic structures at multiple scales in a single component, based on the hybridization of additive manufacturing technologies, was developed by combining 3D macro-stereolithography (Digital Light Processing, DLP) with two-photon lithography (2PL), to produce cm-sized sample geometries with sub-μm surface features. The preceramic structures in the sub-μm scale were realized by 2PL directly on easily manageable DLP macro-sized samples of the same ceramic composition. In this way, preceramic structures presenting both features typical of DLP printers (with a minimum size of around 50 μm) and features well below their resolution limit were realized. We report here, for the first time, the realization of polymer-derived ceramic SiOC ceramic components structured in 3D across several length scales (with micron and mesoscale 3D features), produced by pyrolysis at 1000 °C of preceramic parts, without shape distortion during the pyrolysis step.
- Published
- 2019
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