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Investigations on the Processing of Ceramic Filled Inks for 3D InkJet Printing

Graf, Dennis; Qazzazie, Afnan; Hanemann, Thomas

Abstract (englisch):
3D inkjet printing is moving from a technology of rapid prototyping to rapid
manufacturing. The introduction of ultraviolet curable composites filled with functional ceramics
could expand the possibilities of this technology. In this work, a simple and scalable process was
investigated as a template for the production of inkjet printable functional ceramics. Pyrogenic
alumina particles with an average size of 13 nm, 35 nm and 100 nm were used as fillers in an acrylate
mixture. The physical coating of the ceramics with 2‐[2‐(2‐methoxyethoxy)ethoxy] acetic acid results
in a low‐viscosity dispersion with a ceramic content of up to 2 vol%, Newtonian behavior and
surface tension within the limits allowed for inkjet printing. The material has sufficient stability for
printing tensile specimens. Tensile tests have shown that modulus of elasticity, tensile strength and
toughness can be kept constant despite the light scatter caused by the particles. The final production
steps could be reduced to grinding and drying of the powders, their resuspension in the organic
matrix and inkjet printing. The process can be used in an industrial‐

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Verlagsausgabe §
DOI: 10.5445/IR/1000120025/pub
Veröffentlicht am 08.10.2020
Postprint §
DOI: 10.5445/IR/1000120025
Frei zugänglich ab 06.06.2021
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Angewandte Materialien - Werkstoffkunde (IAM-WK)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2020
Sprache Englisch
Identifikator ISSN: 1996-1944
KITopen-ID: 1000120025
HGF-Programm 43.22.03 (POF III, LK 01) Printed Materials and Systems
Erschienen in Materials
Verlag MDPI
Band 13
Heft 11
Seiten Art. Nr.: 2587
Vorab online veröffentlicht am 05.06.2020
Schlagwörter composites; photopolymers; 3D inkjet printing; ceramic inks
Nachgewiesen in Web of Science
Scopus
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