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Concept Paper

Direct Ink Writing Glass: A Preliminary Step for Optical Application

Department of Materials and Ceramic Engineering, University of Aveiro, CICECO—Aveiro Materials Institute, 3810-193 Aveiro, Portugal
CEITEC-Central European Institute of Technology, Brno University of Technology, Purkynova 656/123, 612 00 Brno, Czech Republic
Institute of Electronic Materials Technology, Wólczyńska 133, 01-919 Warsaw, Poland
Faculty of Physics, University of Warsaw, Pasteura 5, 02-093 Warsaw, Poland
CEFT, Department of Chemical Engineering, Faculty of Engineering of the University of Porto, 4200-465 Porto, Portugal
Author to whom correspondence should be addressed.
These two authors contribute equally.
Materials 2020, 13(7), 1636;
Received: 9 March 2020 / Revised: 26 March 2020 / Accepted: 30 March 2020 / Published: 1 April 2020
(This article belongs to the Special Issue Complex Flow Dynamics at Microscale)
In this paper, we present a preliminary study and conceptual idea concerning 3D printing water-sensitive glass, using a borosilicate glass with high alkali and alkaline oxide contents as an example in direct ink writing. The investigated material was prepared in the form of a glass frit, which was further ground in order to obtain a fine powder of desired particle size distribution. In a following step, inks were prepared by mixing the fine glass powder with Pluoronic F-127 hydrogel. The acquired pastes were rheologically characterized and printed using a Robocasting device. Differential scanning calorimetry (DSC) experiments were performed for base materials and the obtained green bodies. After sintering, scanning electron microscope (SEM) and X-ray diffraction (XRD) analyses were carried out in order to examine microstructure and the eventual presence of crystalline phase inclusions. The results confirmed that the as obtained inks exhibit stable rheological properties despite the propensity of glass to undergo hydrolysis and could be adjusted to desirable values for 3D printing. No additional phase was observed, supporting the suitability of the designed technology for the production of water sensitive glass inks. SEM micrographs of the sintered samples revealed the presence of closed porosity, which may be the main reason of light scattering. View Full-Text
Keywords: direct ink writing; glass; rheology direct ink writing; glass; rheology
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MDPI and ACS Style

Nan, B.; Gołębiewski, P.; Buczyński, R.; Galindo-Rosales, F.J.; Ferreira, J.M.F. Direct Ink Writing Glass: A Preliminary Step for Optical Application. Materials 2020, 13, 1636.

AMA Style

Nan B, Gołębiewski P, Buczyński R, Galindo-Rosales FJ, Ferreira JMF. Direct Ink Writing Glass: A Preliminary Step for Optical Application. Materials. 2020; 13(7):1636.

Chicago/Turabian Style

Nan, Bo, Przemysław Gołębiewski, Ryszard Buczyński, Francisco J. Galindo-Rosales, and José M.F. Ferreira. 2020. "Direct Ink Writing Glass: A Preliminary Step for Optical Application" Materials 13, no. 7: 1636.

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