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Melt-Extrusion-Based Additive Manufacturing of Transparent Fused Silica Glass

Mader, M.; Hambitzer, L.; Schlautmann, P.; Jenne, S.; Greiner, C.; Hirth, F.; Helmer, D.; Kotz-Helmer, F.; Rapp, B. E.

Abstract:
In recent years, additive manufacturing (AM) of glass has attracted great interest in academia and industry, yet it is still mostly limited to liquid nanocomposite-based approaches for stereolithography, two-photon polymerization, or direct ink writing. Melt-extrusion-based processes, such as fused deposition modeling (FDM), which will allow facile manufacturing of large thin-walled components or simple multimaterial printing processes, are so far inaccessible for AM of transparent fused silica glass. Here, melt-extrusion-based AM of transparent fused silica is introduced by FDM and fused feedstock deposition (FFD) using thermoplastic silica nanocomposites that are converted to transparent glass using debinding and sintering. This will enable printing of previously inaccessible glass structures like high-aspect-ratio (>480) vessels with wall thicknesses down to 250 µm, delicate parts including overhanging features using polymer support structures, as well as dual extrusion for multicolored glasses.


Verlagsausgabe §
DOI: 10.5445/IR/1000139369
Veröffentlicht am 29.10.2021
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Angewandte Materialien (IAM)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2021
Sprache Englisch
Identifikator ISSN: 2198-3844
KITopen-ID: 1000139369
Erschienen in Advanced Science
Verlag Wiley Open Access
Nachgewiesen in Web of Science
Scopus
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