Vat Photopolymerization of Ceramic Parts: Effects of Carbon Fiber Additives on Microstructure and Mechanical Performance

被引:0
|
作者
Wang, Lu [1 ]
Wu, Hailong [1 ]
Guo, Anfu [1 ]
Kong, Dekun [1 ]
Zhao, Zhengyu [1 ]
Liu, Chang [1 ]
Yin, Lvfa [1 ]
Xia, Guojun [1 ]
Su, Xiaofei [1 ]
Chen, Zhong [2 ]
Wang, Diangang [3 ]
机构
[1] Liaocheng Univ, Sch Mech & Automot Engn, Liaocheng 252000, Peoples R China
[2] Huaiyin Inst Technol, Jiangsu Key Lab Adv Mfg Technol, Huaian 223003, Peoples R China
[3] Shandong Univ, Sch Mat Sci & Engn, Jinan 250061, Peoples R China
关键词
vat photopolymerization; ceramics; carbon fiber additives; microstructure; mechanical performance; TEMPERATURE; FABRICATION; COMPOSITES;
D O I
10.3390/ma17133127
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Vat photopolymerization (VPP), as an additive manufacturing (AM) technology, can conveniently produce ceramic parts with high resolution and excellent surface quality. However, due to the inherent brittleness and low toughness of ceramic materials, manufacturing defect-free ceramic parts remains a challenge. Many researchers have attempted to use carbon fibers as additives to enhance the performance of ceramic parts, but these methods are mostly applied in processes like fused deposition modeling and hot pressing. To date, no one has applied them to VPP-based AM technology. This is mainly because the black carbon fibers reduce laser penetration, making it difficult to cure the ceramic slurry and thus challenging to produce qualified ceramic parts. To address this issue, our study has strictly controlled the amount of carbon fibers by incorporating trace amounts of carbon fiber powder into the original ceramic slurry with the aim to investigate the impact of these additions on the performance of ceramic parts. In this study, ceramic slurries with three different carbon fiber contents (0 wt.%, 0.1 wt.%, 0.2 wt.%, and 0.3 wt.%) were used for additive manufacturing. A detailed comparative analysis of the microstructure, physical properties, and mechanical performance of the parts was conducted. The experimental results indicate that the 3D-printed alumina parts with added carbon fibers show varying degrees of improvement in multiple performance parameters. Notably, the samples prepared with 0.2 wt.% carbon fiber content exhibited the most significant performance enhancements.
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页数:18
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