3D printing of Al2O3 ceramics using material extrusion

Abstract: In this article, the manufacturing of Al2O3 ceramics by 3D printing through different methods of material extrusion is investigated in terms of porosity, density and flexural strength. The methods of cold plastic material extrusion with pastes and thermoplastic material extrusion with filament and with granules are compared. It can be shown that significant differences result with regard to the physical properties investigated, which can be attributed to the processes used, to the specific machines and the starting materials. © 2022, Springer Fachmedien Wiesbaden GmbH, ein Teil von Springer Nature.