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SiCN microsphere reinforced SiCN composite ceramics formed by DLP and their biotoxicity.

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Title: SiCN microsphere reinforced SiCN composite ceramics formed by DLP and their biotoxicity.
Authors: Zhang, Zhongya1 (AUTHOR), Zhong, Cheng2 (AUTHOR), Xue, Jing3 (AUTHOR), Zhang, Lijuan1,2 (AUTHOR) zhanglj@sdut.edu.cn
Source: Ceramics International. Mar2026, Vol. 52 Issue 8, p10180-10188. 9p.
Subjects: Ceramic-matrix composites, In vitro toxicity testing, Mechanical behavior of materials, Biomedical engineering, Three-dimensional printing, Deformations (Mechanics)
Abstract: To reduce shrinkage rate and enhance mechanical properties in SiCN composite ceramics fabricated via DLP 3D printing, SiCN microspheres prepared through emulsion-thermal curing were introduced as fillers. This study examines the effect of the pyrolysis process on the UV-curing performance of the microspheres within the slurry. Microspheres heat-treated at 600 °C were selected as the fillers. Increasing the SiCN microsphere content from 0 wt% to 30 wt% reduced the linear shrinkage from 31.8 ± 0.2 % to 26.2 ± 0.3 %. The flexural strength of the SiCN composite ceramics reached a maximum value of 242.1 ± 13.1 MPa at a microsphere content of 15 wt%. Furthermore, biotoxicity evaluation of the SiCN composite ceramics showed a relative cell viability of 95.8 ± 0.6 %, indicating exceptionally low biotoxicity. This work demonstrates the significant potential of photopolymerization-based additive manufacturing for producing complex ceramic components suitable for biomedical applications. This research demonstrates the significant potential of photopolymerization additive manufacturing technology for producing complex ceramic components for biomedical applications. [ABSTRACT FROM AUTHOR]
Copyright of Ceramics International is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: SiCN microsphere reinforced SiCN composite ceramics formed by DLP and their biotoxicity.
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  Data: <searchLink fieldCode="AR" term="%22Zhang%2C+Zhongya%22">Zhang, Zhongya</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhong%2C+Cheng%22">Zhong, Cheng</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Xue%2C+Jing%22">Xue, Jing</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhang%2C+Lijuan%22">Zhang, Lijuan</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> zhanglj@sdut.edu.cn</i>
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  Data: <searchLink fieldCode="JN" term="%22Ceramics+International%22">Ceramics International</searchLink>. Mar2026, Vol. 52 Issue 8, p10180-10188. 9p.
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  Data: <searchLink fieldCode="DE" term="%22Ceramic-matrix+composites%22">Ceramic-matrix composites</searchLink><br /><searchLink fieldCode="DE" term="%22In+vitro+toxicity+testing%22">In vitro toxicity testing</searchLink><br /><searchLink fieldCode="DE" term="%22Mechanical+behavior+of+materials%22">Mechanical behavior of materials</searchLink><br /><searchLink fieldCode="DE" term="%22Biomedical+engineering%22">Biomedical engineering</searchLink><br /><searchLink fieldCode="DE" term="%22Three-dimensional+printing%22">Three-dimensional printing</searchLink><br /><searchLink fieldCode="DE" term="%22Deformations+%28Mechanics%29%22">Deformations (Mechanics)</searchLink>
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  Label: Abstract
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  Data: To reduce shrinkage rate and enhance mechanical properties in SiCN composite ceramics fabricated via DLP 3D printing, SiCN microspheres prepared through emulsion-thermal curing were introduced as fillers. This study examines the effect of the pyrolysis process on the UV-curing performance of the microspheres within the slurry. Microspheres heat-treated at 600 °C were selected as the fillers. Increasing the SiCN microsphere content from 0 wt% to 30 wt% reduced the linear shrinkage from 31.8 ± 0.2 % to 26.2 ± 0.3 %. The flexural strength of the SiCN composite ceramics reached a maximum value of 242.1 ± 13.1 MPa at a microsphere content of 15 wt%. Furthermore, biotoxicity evaluation of the SiCN composite ceramics showed a relative cell viability of 95.8 ± 0.6 %, indicating exceptionally low biotoxicity. This work demonstrates the significant potential of photopolymerization-based additive manufacturing for producing complex ceramic components suitable for biomedical applications. This research demonstrates the significant potential of photopolymerization additive manufacturing technology for producing complex ceramic components for biomedical applications. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Ceramics International is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1016/j.ceramint.2026.01.194
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        Text: English
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      – SubjectFull: In vitro toxicity testing
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      – SubjectFull: Mechanical behavior of materials
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      – SubjectFull: Biomedical engineering
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            NameFull: Zhong, Cheng
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              Text: Mar2026
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