FILAMENT FOR 3D PRINTING OF HIGH-STRENGTH CERAMICS: STRUCTURE AND PROPERTIES

The ceramic composite filament for 3D printing of high-strength ceramics by the FFF/FDM method was prepared in an extruder from feedstock in the form of granules containing micro- and nanoparticles of zirconium oxide and with a low content of plasticizer. An optical and thermal analysis of the filaments and the comparison with commercially produced filament for 3D printing of ceramics were performed. Our goal was to create a filament with the lowest possible binder content and maximize the density of the ceramic mass so that after debinding and sintering the printed products achieve mechanical properties comparable to technical ceramics produced by classical methods such as powder pressing or injection molding.