Polymer‐derived silicon nitride ceramics by digital light processing based additive manufacturing

Wang, Min; Xie, Chen; He, Rujie; Ding, Guojiao; Zhang, Keqiang; Wang, Gang; Fang, Daining

doi:10.1111/jace.16389

Cited by 104 publications

(43 citation statements)

References 28 publications

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“…8 (c)) [99]. www.springer.com/journal/40145 Similarly, Si 3 N 4 has also been reported using carbonfree polysilazane as precursor via DLP [100]. The yield of the Si 3 N 4 was normally improved by pyrolyzing the printed samples under N 2 atmosphere at temperature of > 1200 ℃ [70,[101][102][103].…”

Section: Binary Polymer Derived Ceramicsmentioning

confidence: 88%

Photopolymerization-based additive manufacturing of ceramics: A systematic review

et al. 2021

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Conversion of inorganic-organic frameworks (ceramic precursors and ceramic-polymer mixtures) into solid mass ceramic structures based on photopolymerization process is currently receiving plentiful attention in the field of additive manufacturing (3D printing). Various techniques (e.g., stereolithography, digital light processing, and two-photon polymerization) that are compatible with this strategy have so far been widely investigated. This is due to their cost-viability, flexibility, and ability to design and manufacture complex geometric structures. Different platforms related to these techniques have been developed too, in order to meet up with modern technology demand. Most relevant to this review are the challenges faced by the researchers in using these 3D printing techniques for the fabrication of ceramic structures. These challenges often range from shape shrinkage, mass loss, poor densification, cracking, weak mechanical performance to undesirable surface roughness of the final ceramic structures. This is due to the brittle nature of ceramic materials. Based on the summary and discussion on the current progress of material-technique correlation available, here we show the significance of material composition and printing processes in addressing these challenges. The use of appropriate solid loading, solvent, and preceramic polymers in forming slurries is suggested as steps in the right direction. Techniques are indicated as another factor playing vital roles and their selection and development are suggested as plausible ways to remove these barriers.

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Section: Binary Polymer Derived Ceramicsmentioning

confidence: 88%

Photopolymerization-based additive manufacturing of ceramics: A systematic review

et al. 2021

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“…The ultraviolet (UV) beams of SLA scan layer by layer, so the molding speed is slow. However, DLP uses UV light to shape the shape of each molding section to the printing surface accurately, so the accuracy is higher and the molding speed is faster [31]. Therefore, DLP has a great advantage in manufacturing large parts with complex shape and high precision.…”

Section: Introduction mentioning

confidence: 99%

Additive manufacturing of hydroxyapatite bioceramic scaffolds: Dispersion, digital light processing, sintering, mechanical properties, and biocompatibility

et al. 2020

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Hydroxyapatite (HA) bioceramic scaffolds were fabricated by using digital light processing (DLP) based additive manufacturing. Key issues on the HA bioceramic scaffolds, including dispersion, DLP fabrication, sintering, mechanical properties, and biocompatibility were discussed in detail. Firstly, the effects of dispersant dosage, solid loading, and sintering temperature were studied. The optimal dispersant dosage, solid loading, and sintering temperature were 2 wt%, 50 vol%, and 1250 ℃, respectively. Then, the mechanical properties and biocompatibility of the HA bioceramic scaffolds were investigated. The DLP-prepared porous HA bioceramic scaffold was found to exhibit excellent mechanical properties and degradation behavior. From this study, DLP technique shows good potential for manufacturing HA bioceramic scaffolds.

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“…Fortunately, in recent years, the development of additive manufacturing (AM) technology has brought new ideas for solving this problem. [9][10][11][12][13][14][15][16] Chen et al 12 prepared SiC ceramics through direct ink writing of polycarbosilane-hexane solution. Lv et al 15 fabricated SiC/SiC ceramics based on 3D printing and chemical vapor infiltration (CVI) technology.…”

Section: Introductionmentioning

confidence: 99%

High‐temperature flexural strength of SiC ceramics prepared by additive manufacturing

Cheng

Jin

et al. 2020

Int J Applied Ceramic Tech

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Silicon carbide (SiC) ceramics, as a kind of candidate material for aero-engine, its high-temperature performance is a critical factor to determine its applicability.This investigation focuses on studying the high-temperature properties of SiC ceramics fabricated by using additive manufacturing technology. In this paper, SiC ceramics were prepared by combining selective laser sintering (SLS) with precursor infiltration and pyrolysis (PIP) technique. The microstructure, phase evolution, and failure mechanism after high-temperature tests were explored. SiC ceramic samples tested at room temperature (RT), 800°C, 1200°C, 1400°C, and 1600°C demonstrated bending strengths of 220.0, 226.1, 234.9, 215.5, and 203.7 MPa, respectively. The RT strength of this material can be maintained at 1400°C, but it decreased at 1600°C.The strength retention at 1400°C and 1600°C were 98% and 92%, respectively. The results indicate that the mechanical properties of SiC ceramics prepared using this method have excellent stability. As the temperature increases, the bending strength of the specimens increased slightly and reached the peak value at 1200°C, and dropped to 203.7 MPa at 1600°C. Such an evolution could be mainly due to the crack healing, and the softening of the glassy phase. K E Y W O R D Shigh-temperature flexural strength, polymer impregnation process, selective laser sintering, silicon carbide

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Polymer‐derived silicon nitride ceramics by digital light processing based additive manufacturing

Cited by 104 publications

References 28 publications

Photopolymerization-based additive manufacturing of ceramics: A systematic review

Photopolymerization-based additive manufacturing of ceramics: A systematic review

Additive manufacturing of hydroxyapatite bioceramic scaffolds: Dispersion, digital light processing, sintering, mechanical properties, and biocompatibility

High‐temperature flexural strength of SiC ceramics prepared by additive manufacturing

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