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Farid, Muhammad Asad
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Publications (4/4 displayed)
- 2021Effect of printing parameters on mechanical properties of extrusion-based additively manufactured ceramic partscitations
- 2021The effect of printing parameters on sintered properties of extrusion-based additively manufactured stainless steel 316L partscitations
- 2021Optimization of process-property relations of 3D printed ceramics using extrusion-based additive manufacturingcitations
- 2021Extrusion-based additive manufacturing of forming and molding toolscitations
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article
Effect of printing parameters on mechanical properties of extrusion-based additively manufactured ceramic parts
Abstract
<p>The purpose of this study is to investigate the effect of printing parameters on the physical and mechanical properties of additively manufactured ceramics (alumina and zirconia). Sample parts were obtained by extrusion-based additive manufacturing of a ceramic-binder mixture and subsequent post-processing (debinding and sintering). Their mechanical properties (microhardness, flexural strength, toughness) were measured and correlated with the printing parameters. Part orientation is the most significant factor for microhardness and flexural strength in both ceramic materials. Parts with vertical orientation show higher hardness while horizontal samples show higher flexural strength compared to their respective counterparts. Extrusion velocity was found to be insignificant for hardness and flexural strength. However, a marginal increase in fracture toughness with the increase in the extrusion velocity was observed. The fracture toughness of additively manufactured ceramics shows an increasing trend with elastic modulus and flexural strength and a decreasing trend with hardness and sintered density.</p>