Preparation and stereolithography of SiC ceramic precursor with high photosensitivity and ceramic yield

Chen, Jiangshan; Wang, Yuanjie; Pei, Xueliang; Bao, Chao; Huang, Zhengren; He, Liu; Huang, Qing

doi:10.1016/j.ceramint.2020.02.077

Cited by 41 publications

(24 citation statements)

References 32 publications

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“…The three-point bending strength of the as-prepared SiCN ceramic reached up to 890 MPa, and the HV1.0 hardness was as high as 1550. Chen et al [81] also tried to apply the [SiH 2 CH 2 ] n acrylate functional group to modify liquid hyperbranched polycarbosilane (LHBPCS) precursor, and finally got a new precursor with high photo-activity and high ceramic yield which was suitable for the following SLA. Then they prepared SiC ceramic components by using SLA and pyrolysis at 1000 ℃, as shown in Fig.…”

Section: Stereolithography (Sl)mentioning

confidence: 99%

Progress and challenges towards additive manufacturing of SiC ceramic

et al. 2021

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Silicon carbide (SiC) ceramic and related materials are widely used in various military and engineering fields. The emergence of additive manufacturing (AM) technologies provides a new approach for the fabrication of SiC ceramic products. This article systematically reviews the additive manufacturing technologies of SiC ceramic developed in recent years, including Indirect Additive Manufacturing (Indirect AM) and Direct Additive Manufacturing (Direct AM) technologies. This review also summarizes the key scientific and technological challenges for the additive manufacturing of SiC ceramic, and also forecasts its possible future opportunities. This paper aims to provide a helpful guidance for the additive manufacturing of SiC ceramic and other structural ceramics.

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Section: Stereolithography (Sl)mentioning

confidence: 99%

Progress and challenges towards additive manufacturing of SiC ceramic

et al. 2021

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“…7(A)). 226 Park et al used an allylhydridopolycarbosilane-based (AHPS) photoresin with TPL to fabricate SiC structures that had a ceramic yield of 86% and a linear shrinkage of 12%. 228 The inclusion of additives has also been shown to mitigate the shrinkage experienced by the structure.…”

Section: In Situ Materials Synthesis To Advance Materials Developmentmentioning

confidence: 99%

Section: Perspective and Conclusionmentioning

confidence: 99%

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Three‐dimensional chemical reactors: in situ materials synthesis to advance vat photopolymerization

Yee

Greer

2021

Polymer International

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Vat photopolymerization (VP) is one of the most remarkable additive manufacturing techniques today and has been used for a variety of applications, from materials research to product manufacturing. The main challenge with VP is the limited choice of compatible materials, which motivates significant interest in VP materials development. We provide a brief overview of the materials that are currently accessible via VP and highlight recent advances in the field. We also provide perspective on expanding the library of materials compatible with VP using in situ materials synthesis.

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“…In order to be UV-curable, liquid polysilazane and polycarbosilane were chemically modified with photosensitive functionalities [29,30] or simply mixed with photosensitive resins [31]. For example, photopolymerization of hyperbranched polycarbosilane [32] and allylmethylhydridopolycarbosilane [33] was realized using SLA to form SiC ceramics, after a proper heat treatment. 3D SiCN ceramics were printed through photopolymerisation of polysilazane [1,34,35].…”

Section: Introductionmentioning

confidence: 99%

Design and Manufacturing of Si-Based Non-Oxide Cellular Ceramic Structures through Indirect 3D Printing

et al. 2022

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Additive manufacturing of Polymer-Derived Ceramics (PDCs) is regarded as a disruptive fabrication process that includes several technologies such as light curing and ink writing. However, 3D printing based on material extrusion is still not fully explored. Here, an indirect 3D printing approach combining Fused Deposition Modeling (FDM) and replica process is demonstrated as a simple and low-cost approach to deliver complex near-net-shaped cellular Si-based non-oxide ceramic architectures while preserving the structure. 3D-Printed honeycomb polylactic acid (PLA) lattices were dip-coated with two preceramic polymers (polyvinylsilazane and allylhydridopolycarbosilane) and then converted by pyrolysis respectively into SiCN and SiC ceramics. All the steps of the process (printing resolution and surface finishing, cross-linking, dip-coating, drying and pyrolysis) were optimized and controlled. Despite some internal and surface defects observed by topography, 3D-printed materials exhibited a retention of the highly porous honeycomb shape after pyrolysis. Weight loss, volume shrinkage, roughness and microstructural evolution with high annealing temperatures are discussed. Our results show that the sacrificial mold-assisted 3D printing is a suitable rapid approach for producing customizable lightweight highly stable Si-based 3D non-oxide ceramics.

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Preparation and stereolithography of SiC ceramic precursor with high photosensitivity and ceramic yield

Cited by 41 publications

References 32 publications

Progress and challenges towards additive manufacturing of SiC ceramic

Progress and challenges towards additive manufacturing of SiC ceramic

Three‐dimensional chemical reactors: in situ materials synthesis to advance vat photopolymerization

Design and Manufacturing of Si-Based Non-Oxide Cellular Ceramic Structures through Indirect 3D Printing

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