High-precision 3D printing of high-strength polymer-derived ceramics: impact of precursor's molecular structure
Additive manufacturing (3D printing) offers new opportunities to create complex structures for many applications. The development of suitable precursors for high-resolution 3D printing of ceramics is increasingly essential to meet evolving material requirements. Herein, a new hybrid preceramic formu...
| Main Authors: | , , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
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2022
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| Online Access: | https://hdl.handle.net/10356/163223 |
| _version_ | 1811691766248636416 |
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| author | Chen, Hui Chen, Xuelong Lim, Jacob Song Kiat Lu, Yong Hu, Jingdan Liang, Yen Nan Hu, Xiao |
| author2 | School of Materials Science and Engineering |
| author_facet | School of Materials Science and Engineering Chen, Hui Chen, Xuelong Lim, Jacob Song Kiat Lu, Yong Hu, Jingdan Liang, Yen Nan Hu, Xiao |
| author_sort | Chen, Hui |
| collection | NTU |
| description | Additive manufacturing (3D printing) offers new opportunities to create complex structures for many applications. The development of suitable precursors for high-resolution 3D printing of ceramics is increasingly essential to meet evolving material requirements. Herein, a new hybrid preceramic formulation based on thiol-ene click chemistry for precision printing of polymer-derived ceramic has been developed to enable the fabrication of complex 3D objects using high-resolution projection microstereolithography (PμSL). Two low-odor thiol compounds with either three (trithiol) or four thiols (tetrathiol) moieties have been examined, to investigate the influence of thiol structure on the mechanical properties of converted ceramics. Pyrolysis of the printed green bodies leads to the formation of silicon oxycarbide (SiOC) with high fidelity after polymer-to-ceramic transformation. The SiOC printed specimen converted from the tetrathiol formulation (4T) demonstrates excellent mechanical strength surpassing that of the trithiol-based formulation (3T) and previously reported SiOC preceramic polymers. The ceramic honeycomb fabricated using the tetrathiol compound shows remarkable improvement in compressive strength, which is two times higher than that of the trithiol-derived ceramic. This work proposes a simple and effective way to formulate 3D printable preceramic polymers through molecular design. The achieved 3D printed SiOC can fulfill the requirement for high-strength ceramic materials with complex shapes. |
| first_indexed | 2024-10-01T06:25:06Z |
| format | Journal Article |
| id | ntu-10356/163223 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T06:25:06Z |
| publishDate | 2022 |
| record_format | dspace |
| spelling | ntu-10356/1632232022-11-29T02:48:44Z High-precision 3D printing of high-strength polymer-derived ceramics: impact of precursor's molecular structure Chen, Hui Chen, Xuelong Lim, Jacob Song Kiat Lu, Yong Hu, Jingdan Liang, Yen Nan Hu, Xiao School of Materials Science and Engineering Rolls-Royce@NTU Corporate Lab Temasek Laboratories @ NTU Nanyang Environment and Water Research Institute Engineering::Materials Additive Manufacturing Preceramic Polymers Additive manufacturing (3D printing) offers new opportunities to create complex structures for many applications. The development of suitable precursors for high-resolution 3D printing of ceramics is increasingly essential to meet evolving material requirements. Herein, a new hybrid preceramic formulation based on thiol-ene click chemistry for precision printing of polymer-derived ceramic has been developed to enable the fabrication of complex 3D objects using high-resolution projection microstereolithography (PμSL). Two low-odor thiol compounds with either three (trithiol) or four thiols (tetrathiol) moieties have been examined, to investigate the influence of thiol structure on the mechanical properties of converted ceramics. Pyrolysis of the printed green bodies leads to the formation of silicon oxycarbide (SiOC) with high fidelity after polymer-to-ceramic transformation. The SiOC printed specimen converted from the tetrathiol formulation (4T) demonstrates excellent mechanical strength surpassing that of the trithiol-based formulation (3T) and previously reported SiOC preceramic polymers. The ceramic honeycomb fabricated using the tetrathiol compound shows remarkable improvement in compressive strength, which is two times higher than that of the trithiol-derived ceramic. This work proposes a simple and effective way to formulate 3D printable preceramic polymers through molecular design. The achieved 3D printed SiOC can fulfill the requirement for high-strength ceramic materials with complex shapes. Nanyang Technological University The authors acknowledge support from the Nanyang Technological University (NTU) with grant number of 04IDS000677N040. 2022-11-29T02:48:44Z 2022-11-29T02:48:44Z 2022 Journal Article Chen, H., Chen, X., Lim, J. S. K., Lu, Y., Hu, J., Liang, Y. N. & Hu, X. (2022). High-precision 3D printing of high-strength polymer-derived ceramics: impact of precursor's molecular structure. Advanced Engineering Materials, 24(11), 2200269-. https://dx.doi.org/10.1002/adem.202200269 1438-1656 https://hdl.handle.net/10356/163223 10.1002/adem.202200269 2-s2.0-85133783171 11 24 2200269 en 04IDS000677N040 Advanced Engineering Materials © 2022 Wiley-VCH GmbH. All rights reserved. |
| spellingShingle | Engineering::Materials Additive Manufacturing Preceramic Polymers Chen, Hui Chen, Xuelong Lim, Jacob Song Kiat Lu, Yong Hu, Jingdan Liang, Yen Nan Hu, Xiao High-precision 3D printing of high-strength polymer-derived ceramics: impact of precursor's molecular structure |
| title | High-precision 3D printing of high-strength polymer-derived ceramics: impact of precursor's molecular structure |
| title_full | High-precision 3D printing of high-strength polymer-derived ceramics: impact of precursor's molecular structure |
| title_fullStr | High-precision 3D printing of high-strength polymer-derived ceramics: impact of precursor's molecular structure |
| title_full_unstemmed | High-precision 3D printing of high-strength polymer-derived ceramics: impact of precursor's molecular structure |
| title_short | High-precision 3D printing of high-strength polymer-derived ceramics: impact of precursor's molecular structure |
| title_sort | high precision 3d printing of high strength polymer derived ceramics impact of precursor s molecular structure |
| topic | Engineering::Materials Additive Manufacturing Preceramic Polymers |
| url | https://hdl.handle.net/10356/163223 |
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