Wear behavior of additive manufactured zirconia
Jessica Schiltz, Todd Render, Bernice Aboud Gatrell, Haibo Qu, Colton Steiner, Paul J. McGinn, Steven R. Schmid
Abstract
Complete consolidation of ceramic particles is feasible for SLA, but print directionality is well acknowledged to be a source of structural anisotropy. By varying build direction of SLA zirconia specimens, pin-on-disk tests were carried out to evaluate any differences in wear behavior and phase composition with respect to laminar architecture. All combinations of horizontal and vertical pin-disk combinations demonstrated equivalent wear coefficients and phase transformation from monoclinic to tetragonal zirconia but do exhibit a nominal trend in run-in wear. Given that microstructural consolidation of AM ceramics is highly dependent on debind and/or sintering rather than print parameters the absence of anisotropy introduce by print parameters could benefit the application and development around AM ceramics.