Effect of printing parameters on mechanical properties of extrusion-based additively manufactured ceramic parts

The purpose of this study is to investigate the effect printing parameters on physical and mechanical properties additively manufactured ceramics (alumina zirconia). Sample parts were obtained by extrusion-based additive manufacturing a ceramic-binder mixture subsequent post-processing (debinding sintering). Their (microhardness, flexural strength, toughness) measured correlated with parameters. Part orientation most significant factor for microhardness strength in both ceramic materials. Parts vertical show higher hardness while horizontal samples compared their respective counterparts. Extrusion velocity was found be insignificant strength. However, marginal increase fracture toughness extrusion observed. shows an increasing trend elastic modulus decreasing sintered density.