Improving cure performance of Si3N4 suspension with a high refractive index resin for stereolithography-based additive manufacturing

Zou, Wenjing; Yang, Ping; Lin, Lu; Li, Yehua; Wu, Shanghua

doi:10.1016/j.ceramint.2022.01.124

Cited by 33 publications

(9 citation statements)

References 45 publications

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“…investigated the mechanism of how the powder color and particle size affected the curing ability of Si 3 N 4 slurries. Zou et al 61 . compared the curing behavior of different functional groups and RI of resin monomer, and the dispersion effect of three commercial dispersants was investigated systemically.…”

Section: Advancesmentioning

confidence: 99%

“…Liu et al 60 investigated the mechanism of how the powder color and particle size affected the curing ability of Si 3 N 4 slurries. Zou et al 61 compared the curing behavior of different functional groups and RI of resin monomer, and the dispersion effect of three commercial dispersants was investigated systemically. Wu et al 66,67 also studied the influence of type and content of photosensitive resin and dispersant on Si 3 N 4 slurries for LCD mask stereolithography (an AM technology similar to DLP).…”

Section: Stereolithography Apparatus (Sla)mentioning

confidence: 99%

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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Section: Advancesmentioning

confidence: 99%

Section: Stereolithography Apparatus (Sla)mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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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“…However, the residual carbon in the debound body would produce gas during the following sintering process, which may lead to cracks [178]. Thus, a two-step debinding has been used [150,[176][177][178][179]191,192,232], in which a first debinding step under vacuum decomposes the organic material at a controlled rate, and subsequently the debinding step under atmosphere air guarantee complete removal of the residual carbon [176,192].…”

Section: Post-processingmentioning

confidence: 99%

Additive manufacturing of advanced ceramics by digital light processing: equipment, slurry, and 3D printing

Camargo¹

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Additive manufacturing (AM) or 3D printing is a set of technologies that fabricate parts by successively adding layers. This technique is already applied in all classes of materials. In ceramic manufacturing, AM allows the fabrication of small series components with greater geometric freedom, lower cost, and reduced delivery time. Among the AM technologies, vat photopolymerization (VP) stands out for its ability to produce ceramic pieces with excellent dimensional accuracy and surface finish. However, there is a shortage of VP commercial equipment dedicated to producing ceramics at an affordable price, given the challenges of dealing with raw material with high particle loading. In this work, which approaches the fabrication of advanced ceramics by digital light processing VP, the feasibility of using a topdown 3D printer prototype and an ordinary commercial bottom-up printer (usually applied in polymer 3D printing) in the processing of ceramic materials was tested. For this, a 3D printer prototype was designed and built, creating an innovative recoating system (patent pending), composed of two blades with distinct and sequential functions. This system aims to overcome the challenge of creating layers for ceramic suspensions, which usually have high viscosity. In addition, photosensitive suspensions were developed seeking to meet process requirements related to high ceramic loading, rheological behavior, photosensitive parameters, and stability.The ceramic powders were selected to evaluate the process using distinct groups of advanced ceramics: nanometric powders (3Y-TZP) and submicrometric powders (electrofused mullite).Furthermore, a combination of natural raw material (zircon) with alumina was used to investigate the in-situ formation of mullite-zirconia composites in 3D printed parts. Thus, photosensitive ceramic suspensions based on a nanometric zirconia powder (3Y-TZP) were developed and characterized, selecting the appropriate components (monomer, photoinitiator, and dispersant). In this way, a ceramic slurry was obtained capable of validating the developed prototype and manufacturing green ceramic bodies. Nonetheless, the same formulation was not suitable for the commercial 3D printer, due to its rheological behavior not being compatible with the equipment. On the other hand, the submicrometric mullite powder allowed the preparation of formulations with high solid loading (up to 50 vol%). These new formulations were successfully used in both pieces of equipment tested. Furthermore, the formulation based on the mixture of ceramic powders (zircon and alumina) showed that the technique can be combined with reactive sintering to create in-situ mullite and zirconia composites. After analysis of the thermal decomposition, a protocol for the thermal treatment was created and the printed bodies were submitted to burning of the organic components and sintering. Both 3D printers tested proved capable of creating dense ceramic pieces (>95%) and with geometries that would be unfeasible or even impossible by other man...

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Material selection and manufacturing for high‐temperature heat exchangers: Review of state‐of‐the‐art development, opportunities, and challenges

Cramer,

Lara‐Curzio,

Elliott

et al. 2024

Int J Ceramic Engine & Sci

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Many energy systems demand heat transfer at high temperatures to keep up with high demand for power, so high‐temperature material that can perform and last under these harsh conditions is needed for heat exchangers. The engineering requirements for these high‐temperature heat exchanger material call for high thermal conductivity, high resistance to fracture, high resistance to creep deformation, environmental stability in environments associated with the application, and high modulus of elasticity while maintaining low cost to make and maintain. Naturally, ceramics are a good solution for this endeavor. In the past, high‐temperature heat exchangers made from ceramics have been used. We provide examples of ceramics in relevant heat exchange applications and provide motivation where additive manufacturing (AM) can improve efficiency. AM for the relevant material is under development, and we provide insight on the AM of ceramic materials and examples of AM heat exchangers keeping cost in mind. The motivation of the review paper is to provide a framework for material and manufacturing selection for high‐temperature heat exchangers for AM to keep up with the demand for better efficiency, better material, better manufacturing, and cost moving forward with AM technology in high‐temperature ceramic heat exchangers.

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Improving cure performance of Si3N4 suspension with a high refractive index resin for stereolithography-based additive manufacturing

Cited by 33 publications

References 45 publications

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

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

Additive manufacturing of advanced ceramics by digital light processing: equipment, slurry, and 3D printing

Material selection and manufacturing for high‐temperature heat exchangers: Review of state‐of‐the‐art development, opportunities, and challenges

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