The micro-scale joining of two different materials using two-component micro-powder injection molding (2C-µPIM) is an intriguing technique. formation defects in bi-materials at processing stages makes this technique challenging. This study presents the fabrication defect-free bi-material micro-parts containing hydroxyapatite (HA) and 3 mol% yttria-stabilized zirconia (3YSZ) via 2C-µPIM. Critica...

Filament extrusion-based additive manufacturing of metals offers an alternative to the widespread beam-based counterparts. The microstructure obtained from techniques differs greatly ones by manufacturing, as a sintering process is used, in contrast rapid solidification melt pool. In this study, 316L stainless steel fabricated filament extrusion investigated function debinding and conditions. H...

Extending the fused filament fabrication process to highly filled thermoplastics in metallic powder used metal injection molding is a promising method produce small series. However, lack of adhesion between deposited filaments can cause ruptures during or debinding process. We designed simple device measure shear strength required tear off on substrate. This makes it possible quickly determine ...

Extrusion-based additive manufacturing (EAM) is a relatively new process developed for the production of complex metallic and ceramic parts needed in smaller quantities. The debinding sintering step EAM adopted from well-known powder injection molding process. However, 3D printing needs special consideration to make competent era rapid manufacturing. This study intended investigate effect commo...

The aim of this study is the evaluation powder injection molding (PIM) binder compositions for material extrusion (MEX) additive manufacturing zirconia parts. Four commercial PIM were selected and mixed with 45 vol% yttria-stabilized powder. Due to brittle characteristic obtained ceramic feedstocks, a screw based pellet printing head was used dense structures. To compare 3D performance, additio...

Material Extrusion (MEX) is an advanced technology for polymer 3D printing and countless printers are commercially available. MEX has also been demonstrated ceramics. For that purpose, thermoplastic binders filled with high loads (>40 vol%) of a ceramic powder. The printed parts subsequently debound sintered. In contrast to most printers, the printer presented herein works granulated feedstock ...

OBJECTIVE Processing parameters (powder granulation, compaction, debinding, greenbody shaping, sintering) and post-sinter rough, even fine grinding are influencing the final mechanical properties of 3Y-TZP. The hypothesis of this study was that post-sinter hot isostatic pressing (post-HIP) would be beneficial for improving reliability and strength of both sintered and coarse ground sintered zir...

The primary focus of this study is to offer guidelines for developing binder formulations visible light photoinduced ceramic 3D printing applications. Different monomer combinations with a variety functional groups were mixed at various ratios systematically their rheological and curing behaviour, mechanical properties (ultimate tensile strength, elongation break, Young’s modulus). optimum blen...