Page 79 - MSAM-2-3

Materials Science in Additive Manufacturing Additive manufacturing of SiC composite

fiber filaments. Meanwhile, the decomposition of Author contributions
the resin also causes a huge weight loss. This results
in a significant increase in apparent porosity and a Conceptualization: Xiang Nie, Lei Yang
significant decrease in bulk density. Data curation: Xiang Nie, Siqi Wu
(iii) The bending strength of continuous fiber-reinforced Formal analysis: Xiang Nie, Lei Yang
SiC composites decreases with the increase of ILD. Investigation: Lei Yang, Chunze Yan, Yusheng Shi
This is because the percentage of carbon fiber in Methodology: Xiang Nie
the sample decreases with the increase of ILD, and Supervision: Chunze Yan, Yusheng Shi
the content of SiC increases with the reduction of Visualization: Xiang Nie, Siqi Wu
reinforcement phase in the composite, leading to a Writing – original draft: Xiang Nie, Siqi Wu
decrease in the overall bending strength. Writing – review & editing: Lei Yang, Chunze Yan
(iv) Continuous carbon fiber-reinforced SiC composites Ethics approval and consent to participate
with maximum bending strength and fracture
toughness of 47.74 MPa and 1.04 MPa·m were Not applicable.
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obtained. The bending strength of C /SiC (PETG)
f
composite is lower than that of C /SiC (PLA) composite. Consent for publication
f
A plausible reason is that PETG material has a high Not applicable.
residual carbon composition, and more pyrolyzed
carbon is generated during the carbonization process, Availability of data
resulting in excessive pyrolyzed carbon impurities in Data related to this work can be acquired by contacting the
the final product, which affects the overall bending corresponding author with a reasonable justification.
strength of the sample.
(v) After replacing the 0.8 mm aperture nozzle with References
1.0 mm nozzle, the mechanical properties of C /SiC
f
(PETG) composites are effectively improved, and the 1. Yoon DH, Reimanis IE, 2020, A review on the joining of
maximum average bending strength of 93.79 MPa SiC for high-temperature applications. J Korean Ceram Soc,
and the fracture toughness of 2.03 MPa·m can be 57: 246–270.
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obtained. The maximum average bending strength of https://doi.org/10.1007/s43207-020-00021-4
C /SiC (PETG) composites produced with a 0.8 mm 2. Zhang NL, Yang JF, Deng YC, et al., 2019, Preparation and
f
aperture nozzle is increased by 112.5 %. properties of reaction bonded silicon carbide (RB-SiC)
The results obtained in this study revealed the ceramics with high SiC percentage by two-step sintering
correlations between the processing parameters, resultant using compound carbon sources. Ceram Int, 45: 15715–
microstructures, and mechanical performance of the 15719.
C /resin green parts and C /SiC composite parts, which https://doi.org/10.1016/j.ceramint.2019.04.224
f
f
will contribute to the advancement and development of 3. Katoh Y, Ozawa K, Shih C, et al., 2014, Continuous SiC
additive manufacturing of C /SiC composite parts with fiber, CVI SiC matrix composites for nuclear applications:
f
complex geometries. Properties and irradiation effects. J Nucl Mater, 448: 448–476.
Acknowledgments https://doi.org/10.1016/j.jnucmat.2013.06.040

None. 4. Chen X, Yin J, Liu X, et al., 2022, Effect of laser power on
mechanical properties of SiC composites rapidly fabricated
Funding by selective laser sintering and direct liquid silicon
infiltration. Ceram Int, 48: 19123–19131.
This work was supported by the Key Research and https://doi.org/10.1016/j.ceramint.2022.03.203
Development Plan of Hubei Province (2021BAA211
and 2022BAA030), and the National Natural Science 5. Zhang H, Yang Y, Hu K, et al., 2020, Stereolithography-based
Foundation of China (No. 52235008 and U203720003). additive manufacturing of lightweight and high-strength Cf/
SiC ceramics. Addit Manuf, 34: 101199.
Conflict of interest https://doi.org/10.1016/j.addma.2020.101199
The authors declare that they have no known competing 6. Wu S, Yang L, Wang C, et al., 2022, Si/SiC ceramic lattices
financial interests or personal relationships that could have with a triply periodic minimal surface structure prepared by
appeared to influence the work reported in this paper. laser powder bed fusion. Addit Manuf, 56: 102910.

Volume 2 Issue 3 (2023) 18 https://doi.org/10.36922/msam.1604