Open AccessMelt‐Extrusion‐Based Additive Manufacturing of Transparent Fused Silica Glass
Author(s) -
Mader Markus,
Hambitzer Leonhard,
Schlautmann Phillip,
Jenne Sophie,
Greiner Christian,
Hirth Florian,
Helmer Dorothea,
KotzHelmer Frederik,
Rapp Bastian E.
Publication year - 2021
Publication title -
advanced science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.388
H-Index - 100
ISSN - 2198-3844
DOI - 10.1002/advs.202103180
Subject(s) - extrusion , materials science , stereolithography , fused deposition modeling , composite material , nanocomposite , 3d printing , thermoplastic , deposition (geology) , extrusion moulding , plastics extrusion , polymer , inkwell , polymerization , paleontology , sediment , biology
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.