SiC and SiOC ceramic articles produced by stereolithography of acrylate modified polycarbosilane systems

Hazan, Yoram de; Penner, Dirk

doi:10.1016/j.jeurceramsoc.2017.03.021

Cited by 156 publications

(92 citation statements)

References 18 publications

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“…The range of readily photocurable preceramic polymers remains quite confined and has thus far been limited to polysiloxanes, consequently only SiOC ceramics have been additively manufactured in macro scale [2,17,18,[20][21][22]. A recent study examined 3D printing of SiC by blending acrylate based photopolymers with SiC precursors [23]. However, oxygen contamination from the photopolymers is unavoidable and is likely to largely degrade the product material's thermomechanical properties.…”

Section: Introductionmentioning

confidence: 99%

Additive manufacturing of ceramics from preceramic polymers: A versatile stereolithographic approach assisted by thiol-ene click chemistry

Wang

Schmidt

Hanaor

et al. 2019

Additive Manufacturing

111

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2019. Additive manufacturing of ceramics from preceramic polymers: A versatile stereolithographic approach assisted by thiol-ene click chemistry. Additive Manufacturing,27, AbstractHere we introduce a versatile stereolithographic route to produce three different kinds of Si-containing thermosets that yield high performance ceramics upon thermal treatment. Our approach is based on a fast and inexpensive thiol-ene free radical addition that can be applied for different classes of preceramic polymers with carbon-carbon double bonds. Due to the rapidity and efficiency of the thiol-ene click reactions, this additive manufacturing process can be effectively carried out using conventional light sources on benchtop printers. Through light initiated cross-linking, the liquid preceramic polymers transform into stable infusible thermosets that preserve their shape during the polymer-to-ceramic transformation. Through pyrolysis the thermosets transform into glassy ceramics with uniform shrinkage and high density. The obtained ceramic structures are nearly fully dense, have smooth surfaces, and are free from macroscopic voids and defects. A fabricated SiOC honeycomb was shown to exhibit a significantly higher compressive strength to weight ratio in comparison to other porous ceramics. 2019. Additive manufacturing of ceramics from preceramic polymers: A versatile stereolithographic approach assisted by thiol-ene click chemistry. Additive Manufacturing,27,

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Section: Introductionmentioning

confidence: 99%

Additive manufacturing of ceramics from preceramic polymers: A versatile stereolithographic approach assisted by thiol-ene click chemistry

Wang

Schmidt

Hanaor

et al. 2019

Additive Manufacturing

111

View full text Add to dashboard Cite

show abstract

“…Direct ink writing was employed to produce SiOC and graphene‐SiOC ceramic micro‐components from a commercial silicon resin . Stereolithography was used to process different SiCN and SiOC microstructures, micro lattices, and honeycombs . A comprehensive review on additive manufacturing of ceramic components with preceramic polymers has also been recently published .…”

Section: Introductionmentioning

confidence: 99%

“…8 Stereolithography was used to process different SiCN and SiOC microstructures, micro lattices, and honeycombs. [9][10][11][12][13] A comprehensive review on additive manufacturing of ceramic components with preceramic polymers has also been recently published. 14 However, the PDC route was never employed, to the best of our knowledge, in combination with a polymeric template obtained via 3D printing.…”

Section: Introductionmentioning

confidence: 99%

Polymer‐derived SiCN cellular structures from replica of 3D printed lattices

et al. 2018

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In comparison with metals and polymers, ceramics and/or carbon are more difficult to process into well‐defined cellular architectures (e.g., cubic, tetrakaidecadehron, etc.) using Additive Manufacturing techniques. The present work reports a simple method for generating complex and precise SiCN ceramic lattices using a preceramic polymer and applying the replica approach to structures fabricated using stereolithography of plastic materials, with the associated ease of fabrication. Three‐dimensional printed plastic lattices impregnated with a polysilazane were converted to SiCN by pyrolysis at 1000°C in inert atmosphere. In spite of the high amount of mass loss (~58%) and volume shrinkage (~65%), the impregnated structures did not collapse during pyrolysis, leading to highly porous (total porosity ~93 vol%) components possessing suitable strength for handling and potential use as lightweight components.

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“…For DLP based additive manufacturing, ultraviolet active preceramic monomers can be obtained by attaching thiol, vinyl, acrylate, methacrylate, or epoxy groups to an inorganic backbone, such as a siloxane, silazane, or carbosilane . After heat treatment, the DLP‐cured preceramic polymers usually pyrolyze into SiC, Si 3 N 4 , BN, SiOC, SiCN, SiBCN ceramics or other ceramic compositions at around 1000‐1300°C.…”

Section: Introductionmentioning

confidence: 99%

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

et al. 2019

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In this work, silicon nitride ceramic components with simple cuboid and complex honeycomb and lattice structures from preceramic polymers were fabricated by using digital light processing (DLP) based additive manufacturing and pyrolysis. The photosensitive precursor for DLP based additive manufacturing was prepared by mixing high ceramic yield polysilazane with commercial acrylic resin and photoinitiator. The material formulation and the structure of the green body were characterized by using FTIR. Si3N4 ceramic cuboid, 2D‐structured Si3N4 ceramic honeycomb, and 2D‐structured Si3N4 ceramic lattice with high precision were fabricated. The DLP‐prepared specimens were pyrolyzed at different temperatures, and the crystalline phases after pyrolysis were analyzed by using XRD. The optimal pyrolysis temperature was found to be 1400°C.microstructures were characterized by using SEM. The compressive behavior of the complex‐shaped Si3N4 ceramic structures was measured and discussed in detail.

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SiC and SiOC ceramic articles produced by stereolithography of acrylate modified polycarbosilane systems

Cited by 156 publications

References 18 publications

Additive manufacturing of ceramics from preceramic polymers: A versatile stereolithographic approach assisted by thiol-ene click chemistry

Additive manufacturing of ceramics from preceramic polymers: A versatile stereolithographic approach assisted by thiol-ene click chemistry

Polymer‐derived SiCN cellular structures from replica of 3D printed lattices

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

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