Homogeneity, Anisotropy, and Texture In Si<sub>3</sub>n<sub>4</sub> Ceramics made by Fused Deposition

Rangarajan, S.; Pozsgai, I.; McIntosh, Joseph J.; McCuiston, Ryan C.; Harper, B.; Langrana, Noshir A.; Safari, A.; Danforth, S.C.; Clancy, R. B.; Gasdaska, C.; Whalen, P. J.

doi:10.1557/proc-542-97

Cited by 3 publications

(5 citation statements)

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“…Special attention has to be paid to the mechanical properties of the feedstock: the wire-like extrudate must be wrappable on spools and rigid enough to act as a piston for the liquefier (buckling must be prevented). [149] Most preparation routes for RC and FEF feedstocks follow the same principle. The first step to obtain a feedstock is an aqueous or non-aqueous homogeneous slurry of powder particles having a high solids loading (mostly >50 vol%).…”

Section: Feedstock Preparation and Propertiesmentioning

confidence: 99%

Additive Manufacturing of Ceramic‐Based Materials

et al. 2014

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This paper offers a review of present achievements in the field of processing of ceramic-based materials with complex geometry using the main additive manufacturing (AM) technologies. In AM, the geometrical design of a desired ceramic-based component is combined with the materials design. In this way, the fabrication times and the product costs of ceramic-based parts with required properties can be substantially reduced. However, dimensional accuracy and surface finish still remain crucial features in today's AM due to the layer-by-layer formation of the parts. In spite of the fact that significant progress has been made in the development of feedstock materials, the most difficult limitations for AM technologies are the restrictions set by material selection for each AM method and aspects considering the inner architectural design of the manufactured parts. Hence, any future progress in the field of AM should be based on the improvement of the existing technologies or, alternatively, the development of new approaches with an emphasis on parts allowing the near-net formation of ceramic structures, while optimizing the design of new materials and of the part architecture.

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Section: Feedstock Preparation and Propertiesmentioning

confidence: 99%

Additive Manufacturing of Ceramic‐Based Materials

et al. 2014

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“…It was necessary to quantitatively understand the relationship between Δ P and flow, geometric, and material rheological parameters for greater flow control during FDM. In their further paper, 78 dense, homogenous, near‐net‐shape Si 3 N 4 parts were fabricated by using proper build parameters and printing routes. They identified and characterized build parameter–dependent heterogeneities and defects that arise from the FDM process and evaluated the effects of build orientation on the mechanical properties of structural Si 3 N 4 parts made by FDM.…”

Section: Advancesmentioning

confidence: 99%

“…(3) material extrusion (usually including direct ink writing [DIW] or robocasting, [68][69][70][71][72][73][74] fused deposition modeling [FDM], [75][76][77][78][79] and so on); and (4) other AM technologies (including binder jetting [BJ], [80][81][82][83][84][85] 3DP, [86][87][88][89] and laminated object manufacturing [LOM] [90][91][92][93][94] ). Schematics of the previous AM technologies for Si 3 N 4 ceramic are illustrated in Figure 2.…”

Section: Introductionmentioning

confidence: 99%

“…Fortunately, the research on the AM of Si 3 N 4 ceramic has received more and more attentions recently, and attempts have been on the rise. AM technologies of Si 3 N 4 ceramics mainly include (1) powder bed fusion (including selective laser sintering [SLS], and selective laser melting [SLM], 43–49 and so on), (2) photopolymerization (usually including stereolithography apparatus [SLA], 50 laser‐induced slip [LIS] casting, 51 digital light processing [DLP], 52–65 liquid crystal display [LCD], 66,67 and so on); (3) material extrusion (usually including direct ink writing [DIW] or robocasting, 68–74 fused deposition modeling [FDM], 75–79 and so on); and (4) other AM technologies (including binder jetting [BJ], 80–85 3DP, 86–89 and laminated object manufacturing [LOM] 90–94 ). Schematics of the previous AM technologies for Si 3 N 4 ceramic are illustrated in Figure 2.…”

Section: Introductionmentioning

confidence: 99%

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Additive manufacturing of silicon nitride ceramics: A review of advances and perspectives

Dong

et al. 2022

Int J Applied Ceramic Tech

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Silicon nitride (Si 3 N 4 ) ceramic has been widely applied in various engineering fields. The emergence of additive manufacturing (AM) technologies provides an innovative approach for the fabrication of complex-shaped Si 3 N 4 ceramic components. This article systematically reviews the advances of the AM of Si 3 N 4 ceramic in recent years and forecasts the potential perspectives in this field. This review aims to motivate future research and development for the AM of Si 3 N 4 ceramic.

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“…The effect of stearic acid on the stability of the 3D printed scaffold structures during thermal treatment was investigated by Gorjan et al They used different grades of ethylene vinyl acetate (EVA), together with tricalcium phosphate and stearic acid, to manufacture bioceramic scaffold structures (Gorjan et al, 2018). Another functional material was used by Rangarajan et al (1998), who investigated the homogeneity of simple structures created by using the FDC method. One of the observed results was anisotropic shrinkage, which occurred during the thermal treatment.…”

Section: Introductionmentioning

confidence: 99%

Manufacturing complex Al₂O₃ceramic structures using consumer-grade fused deposition modelling printers

Conzelmann

Gorjan

Sarraf

et al. 2020

RPJ

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Purpose This study aims to fabricate complex ceramic tetrahedron structures, which are challenging to produce by more conventional methods such as injection molding. To achieve this aim, thermoplastic-ceramic composite filaments were developed and printed with unmodified, consumer-grade, fused deposition modelling (FDM) printers instead. Design/methodology/approach Al2O3 ceramic powder was mixed with ethylene vinyl acetate polymer as a binder (50 Vol.- per cent) to form a filament with a constant diameter of 1.75 mm. After the printing and thermal treatment stages, the shrinkage and mechanical properties of cuboid and tetrahedron structures were investigated. Findings The shrinkage of the parts was found to be anisotropic, depending on the orientation of the printing pattern, with an increase of 2.4 per cent in the (vertical) printing direction compared to the (horizontal) printing layer direction. The alignment of the ceramic particle orientations introduced by FDM printing was identified as a potential cause of the anisotropy. This study further demonstrates that using a powder bed during the thermal debinding process yields sintered structures that can withstand twice the compressive force. Originality/value Ceramic FDM had previously been used primarily for simple scaffold structures. In this study, the applicability of ceramic FDM was extended from simple scaffolds to more complex geometries such as hollow tetrahedra. The structures produced in this study contain dense parts printed from multiple contiguous layers, as compared to the open structures usually found in scaffolds. The mechanical properties of the complex ceramic parts made by using this FDM technique were also subjected to investigation.

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Homogeneity, Anisotropy, and Texture In Si₃n₄ Ceramics made by Fused Deposition

Cited by 3 publications

References 3 publications

Additive Manufacturing of Ceramic‐Based Materials

Additive Manufacturing of Ceramic‐Based Materials

Additive manufacturing of silicon nitride ceramics: A review of advances and perspectives

Manufacturing complex Al₂O₃ceramic structures using consumer-grade fused deposition modelling printers

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Homogeneity, Anisotropy, and Texture In Si3n4 Ceramics made by Fused Deposition

Cited by 3 publications

References 3 publications

Additive Manufacturing of Ceramic‐Based Materials

Additive Manufacturing of Ceramic‐Based Materials

Additive manufacturing of silicon nitride ceramics: A review of advances and perspectives

Manufacturing complex Al2O3ceramic structures using consumer-grade fused deposition modelling printers

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Product

Resources

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Homogeneity, Anisotropy, and Texture In Si₃n₄ Ceramics made by Fused Deposition

Manufacturing complex Al₂O₃ceramic structures using consumer-grade fused deposition modelling printers