A warpage-free Si3N4 slurry strategy for vat photopolymerization
), Bin Li()Graphical Abstract
Abstract
Si3N4 ceramics are promising wave-transparent materials with excellent mechanical and dielectric properties. Vat photopolymerization (VPP) three-dimensional (3D) printing provides a strategy for preparing ceramics with controllable complex structures. However, the difficulty in solidifying the slurry due to partial ultraviolet (UV) light absorption and the high refractive index of Si3N4 particles during the VPP process severely hinder the molding of Si3N4 ceramics. A higher laser power must be used to increase the curing depth, which generates large internal stresses and warps the samples. This study presents a method to solve the warpage problem during VPP-3D printing using tributyl citrate as a plasticizer. The plasticizer can weaken the force between polymer molecular chains and reduce the internal stress of the green body. Warpage decreases gradually with increasing tributyl citrate content, and the warpage decreases to 0% when the plasticizer content reaches 30 wt% at high laser powers from 600 to 750 mW. Samples with different layer thicknesses were printed, and the optimum thickness of 40 μm was obtained, at which the sintered Si3N4 samples possessed a unique combination of mechanical properties, including a bending strength of 338.29±12.08 MPa and a fracture toughness of 6.94±0.11 MPa·m1/2 for the loading direction perpendicular to the build surface and 5.37±0.99 MPa·m1/2 for the loading direction parallel to the build surface. The dielectric constant of all the samples is maintained in the range of 5.462–6.414. This work is expected to guide vat photopolymerization and the preparation of complex Si3N4 ceramic components.
References
Luo XY, Zhang Q, Ye F, et al. Microstructure, mechanical, wave-transparent and heat insulation properties of Si3N4 foam ceramic by organic foam impregnation combined with CVI. J Mater Res Technol 2023, 23: 1332–1346.
Wang KJ, Liu RZ, Xu HM. High-strength and wave-transmitting Si3N4–Si2N2O–BN composites prepared using selective laser sintering. Ceram Int 2022, 48: 20126–20133.
Zhang W, Su L, Lu D, et al. Resilient Si3N4@SiO2 nanowire aerogels for high-temperature electromagnetic wave transparency and thermal insulation. J Adv Ceram 2023, 12: 2112–2122.
Cheng ZL, Ye F, Liu YS, et al. Mechanical and dielectric properties of porous and wave-transparent Si3N4–Si3N4 composite ceramics fabricated by 3D printing combined with chemical vapor infiltration. J Adv Ceram 2019, 8: 399–407.
Ye CC, Yue XY, Jiang Y, et al. Effect of different preparation methods on the microstructure and mechanical properties of Si3N4 ceramic composites. Ceram Int 2018, 44: 3664–3671.
Yin S, Jiang YH, Fang X, et al. High-strength and low-dielectric porous Si3N4 ceramics prepared by gelcasting using DMAA. J Alloys Compd 2022, 896: 162945.
Du SM, Zhang J, Li F, et al. Rapid fabrication of Si3N4 ceramics with gradient appearance and microstructure. J Am Ceram Soc 2023, 106: 7611–7617.
Yang P, Sun ZF, Huang SW, et al. Digital light processing 3D printing of surface-oxidized Si3N4 coated by silane coupling agent. J Asian Ceram Soc 2022, 10: 69–82.
Ma SQ, Fu S, Wang QK, et al. 3D printing of honeycomb Si3N4 ceramic. Int J Appl Ceram Tec 2023, 20: 2239–2248.
Yang YT, Yang ZH, Duan XM, et al. Large-size Si3N4 ceramic fabricated by additive manufacturing using long-term stable hydrogel-based suspensions. Addit Manuf 2023, 69: 103534.
Rasaki SA, Xiong DY, Xiong SF, et al. Photopolymerization-based additive manufacturing of ceramics: A systematic review. J Adv Ceram 2021, 10: 442–471.
Sun J, Zhang JD, Zhang X, et al. High strength mullite-bond SiC porous ceramics fabricated by digital light processing. J Adv Ceram 2024, 13: 53–62.
Maines EM, Porwal MK, Ellison CJ, et al. Sustainable advances in SLA/DLP 3D printing materials and processes. Green Chem 2021, 23: 6863–6897.
Karakurt I, Aydoğdu A, Çıkrıkcı S, et al. Stereolithography (SLA) 3D printing of ascorbic acid loaded hydrogels: A controlled release study. Int J Pharm 2020, 584: 119428.
Ma XL. Research on application of SLA technology in the 3D printing technology. Appl Mech Mater 2013, 401–403: 938–941.
Cosmi F, Dal Maso A. A mechanical characterization of SLA 3D-printed specimens for low-budget applications. Mater Today—Proc 2020, 32: 194–201.
Barraza B, Olate-Moya F, Montecinos G, et al. Superhydrophobic SLA 3D printed materials modified with nanoparticles biomimicking the hierarchical structure of a rice leaf. Sci Technol Adv Mat 2022, 23: 300–321.
Chen ZW, Li ZY, Li JJ, et al. 3D printing of ceramics: A review. J Eur Ceram Soc 2019, 39: 661–687.
Truxova V, Safka J, Seidl M, et al. Ceramic 3D printing: Comparison of SLA and DLP technologies. MM Sci J 2020, 39: 3905–3911.
Yu Y, Zou B, Wang XF, et al. Rheological behavior and curing deformation of paste containing 85 wt% Al2O3 ceramic during SLA-3D printing. Ceram Int 2022, 48: 24560–24570.
Song S, Park M, Lee J, et al. A study on the rheological and mechanical properties of photo-curable ceramic/polymer composites with different silane coupling agents for SLA 3D printing technology. Nanomaterials 2018, 8: 93.
Chen RF, Duan WY, Wang G, et al. Preparation of broadband transparent Si3N4–SiO2 ceramics by digital light processing (DLP) 3D printing technology. J Eur Ceram Soc 2021, 41: 5495–5504.
Liu SY, Chen YJ, Lu P, et al. Si3N4 slurry with high solid phase, low viscosity prepared via surface-oxidation and silane coupling agent modification hybrid method. J Eur Ceram Soc 2024, 44: 161–172.
Xing HY, Zou B, Liu XY, et al. Fabrication strategy of complicated Al2O3–Si3N4 functionally graded materials by stereolithography 3D printing. J Eur Ceram Soc 2020, 40: 5797–5809.
Huang ZY, Liu LY, Yuan JM, et al. Stereolithography 3D printing of Si3N4 cellular ceramics with ultrahigh strength by using highly viscous paste. Ceram Int 2023, 49: 6984–6995.
Xing ZW, Liu WW, Chen Y, et al. Effect of plasticizer on the fabrication and properties of alumina ceramic by stereolithography-based additive manufacturing. Ceram Int 2018, 44: 19939–19944.
Nie JB, Li MS, Liu WW, et al. The role of plasticizer in optimizing the rheological behavior of ceramic pastes intended for stereolithography-based additive manufacturing. J Eur Ceram Soc 2021, 41: 646–654.
Kim J, Gal CW, Choi YJ, et al. Effect of non-reactive diluent on defect-free debinding process of 3D printed ceramics. Addit Manuf 2023, 67: 103475.
Foghmoes S, Teocoli F, Brodersen K, et al. Novel ceramic processing method for substitution of toxic plasticizers. J Eur Ceram Soc 2016, 36: 3441–3449.
Foghmoes S, Klemensø T, Brodersen K, et al. Citrate- and glycerol triesters as novel dual-functional dispersants and plasticisers for ceramic processing. Ceram Int 2018, 44: 9132–9139.
Yuan R, Gao L, Liu JY, et al. Effect of hydrophobic alkyl chains on the plasticization properties of citrate: Experiments and MD simulation. Eur Polym J 2024, 203: 112644.
Fan J, Li QL, Jin FN, et al. High solid loading, low viscosity stereolithography 3D printing ceramic cores slurry. Ceram Int 2023, 49: 40705–40715.
Xu XH, Zhou SX, Wu JF, et al. Relationship between the adhesion properties of UV-curable alumina suspensions and the functionalities and structures of UV-curable acrylate monomers for DLP-based ceramic stereolithography. Ceram Int 2021, 47: 32699–32709.
Gutiérrez-Rocca J, McGinity JW. Influence of water soluble and insoluble plasticizers on the physical and mechanical properties of acrylic resin copolymers. Int J Pharm 1994, 103: 293–301.
Li T, Zhang YZ, Duan WY, et al. A study on the control of the printing accuracy in alumina parts by ceramic stereolithography. J Eur Ceram Soc 2024, 44: 7149–7159.
Zhang KQ, Meng QY, Qu ZL, et al. A review of defects in vat photopolymerization additive-manufactured ceramics: Characterization, control, and challenges. J Eur Ceram Soc 2024, 44: 1361–1384.
Zhou SX, Liu GZ, Wang CS, et al. Thermal debinding for stereolithography additive manufacturing of advanced ceramic parts: A comprehensive review. Mater Des 2024, 238: 112632.
Ma HQ, Fang X, Yin S, et al. Preparation and characteristics of honeycomb mullite ceramics with controllable structure by stereolithography 3D printing and in situ synthesis. Ceram Int 2024, 50: 3176–3186.
Wang XY, Duan WY, Chen ZH, et al. Uniform rate debinding for Si3N4 vat photopolymerization 3D printing green parts using a specific-stage stepwise heating process. Addit Manuf 2024, 84: 104119.
Zhao D, Su HJ, Hu KH, et al. Formation mechanism and controlling strategy of lamellar structure in 3D printed alumina ceramics by digital light processing. Addit Manuf 2022, 52: 102650.
Zhai XF, Chen JY, Wang YR, et al. Fabrication of Al2O3 ceramic cores with high porosity and high strength by vat photopolymerization 3D printing and sacrificial templating. Ceram Int 2023, 49: 32096–32103.
Sun N, Wang TP, Du YH, et al. Effect of TMAH as a modifier on the performance of Si3N4 stereolithography pastes. Ceram Int 2024, 50: 15502–15512.
Dong XJ, Wu JQ, Zhou Q, et al. Mechanical and dielectric properties of Si3N4–SiO2 ceramics prepared by digital light processing based 3D printing and oxidation sintering. Ceram Int 2023, 49: 29699–29708.
Yu SW, Zeng T, Pan XT, et al. Fabrication of Si3N4–SiC/SiO2 composites using 3D printing and infiltration processing. Ceram Int 2021, 47: 28218–28225.
Hao MX, Yang DY, Pan YR, et al. 3D printing Si3N4-bonded SiC refractories fabricated using colloidal films-containing slurries based on non-spherical SiC and Si powders. Ceram Int 2023, 49: 29433–29448.
Yu SW, Zeng T, Yang YP, et al. Effect of an annealing treatment on the microstructure and EMW-absorbing properties of SiCw/Si3N4 ceramics fabricated by 3D printing. Ceram Int 2023, 49: 1092–1101.
Chen ZH, Duan WY, Zhang DY, et al. Fabrication of broadband wave-transparent Si3N4 ceramics with octet-truss lattice structure by vat photopolymerization 3D printing technology. J Eur Ceram Soc 2024, 44: 2026–2036.
Xiao SS, Mei H, Han DY, et al. Porous (SiCw–Si3N4w)/(Si3N4–SiC) composite with enhanced mechanical performance fabricated by 3D printing. Ceram Int 2018, 44: 14122–14127.
Jiang Q, Yang DY, Yuan HY, et al. Fabrication and properties of Si2N2O–Si3N4 ceramics via direct ink writing and low-temperature sintering. Ceram Int 2022, 48: 32–41.
Li XM, Zhang LT, Yin XW. Microstructure and mechanical properties of three porous Si3N4 ceramics fabricated by different techniques. Mater Sci Eng A 2012, 549: 43–49.
Duan WY, Fan Z, Wang H, et al. Electromagnetic interference shielding and mechanical properties of Si3N4–SiOC composites fabricated by 3D-printing combined with polymer infiltration and pyrolysis. J Mater Res 2017, 32: 3394–3401.
Wang XY, Li YL, Liu BS, et al. Preparation of Si3N4 ceramic based on digital light processing 3D printing and precursor infiltration and pyrolysis. Int J Appl Ceram Tec 2023, 20: 1017–1027.
Tian C, Wu JM, Wu YR, et al. Effect of polystyrene addition on properties of porous Si3N4 ceramics fabricated by digital light processing. Ceram Int 2023, 49: 27040–27049.
Jin HZ, Jia DC, Yang ZH, et al. Direct ink writing of Si2N2O porous ceramic strengthened by directional β-Si3N4 grains. Ceram Int 2020, 46: 15709–15713.
Huang SW, Li YH, Yang P, et al. Cure behaviour and mechanical properties of Si3N4 ceramics with bimodal particle size distribution prepared using digital light processing. Ceram Int 2023, 49: 12166–12172.
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