Dynamic mechanical properties of alumina prepared by vat photopolymerization based on high solid loading slurry

被引:2
作者
Han, Zehua [1 ,2 ]
Liu, Jingyu [1 ,2 ]
Li, Tianzhen [1 ,2 ]
Cao, Yong [1 ,2 ]
Zhang, Chao [3 ]
Wang, Zhihua [1 ,2 ]
机构
[1] Taiyuan Univ Technol, Inst Appl Mech, Taiyuan 030024, Peoples R China
[2] Taiyuan Univ Technol, Shanxi Key Lab Mat Strength & Struct Impact, Taiyuan 030024, Peoples R China
[3] Northwestern Polytech Univ, Sch Civil Aviat, Xian 710072, Shaanxi, Peoples R China
基金
中国国家自然科学基金;
关键词
3D printing; Vat photopolymerization; High solid loading; Dynamic mechanical property; Ductile to brittle transition; CERAMIC SLURRIES; POROUS CERAMICS; 3D; STEREOLITHOGRAPHY; OPTIMIZATION; COMPRESSION;
D O I
10.1016/j.addma.2024.104603
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The adoption of 3D printing ceramics in military applications such as body armor and ballistic resistant structures has attracted significant research interests. And there is a pressing need to improve the mechanical properties of 3D printing samples compared to their conventionally-prepared counterparts, while understanding their failure mechanisms under quasi-static and impact load. In this study, a 65 vol% Al2O3 ceramic slurry with high stability and low viscosity was prepared by optimizing the combination of resin with dispersant, and printed by Vat photopolymerization (VPP) method. This yields sintered specimens with minimal flaws, because of the synergistic effect of the high solid loading and debinding process. Consequently, the compressive and bending strengths of sintered specimens employing this approach are significantly influenced by the solid loading (e.g., the compressive strength of a 28 vol% solid loading specimen is 6 MPa, whereas the compressive strength is 125 MPa for 65 vol% solid loading; similarly, the bending strength is 16 MPa of a 28 vol% solid loading, while that for a 65 vol% solid loading specimen is 75 MPa). Compressive Split Hopkinson Pressure Bar (SHPB) tests show noticeable strain rate sensitivity and anisotropy for 3D printing Al2O3. In addition, the mechanisms of the ductile to brittle transition when changing the solid loading and strain rate of the load for 3D printing Al2O3 are analyzed.
引用
收藏
页数:11
相关论文
共 50 条
[41]   Second phase strengthening and grain boundary segregation effects on the microstructure and properties of (Ce, Y)-TZP-based ceramics prepared by vat photopolymerization [J].
Zhang, Ren-Zhong ;
Huang, Yu-Xuan ;
Li, Wei-Kang ;
Luo, Yu ;
Pan, Ming-Zhu ;
Wu, Jia-Min ;
Zhang, Xiao-Yan ;
Ye, Chun-Sheng ;
Shi, Yu-Sheng .
ADDITIVE MANUFACTURING, 2024, 94
[42]   In-situ Y3Al5O12 enhances comprehensive properties of alumina-based ceramic cores by vat photopolymerization 3D printing [J].
Li, Xiang ;
Su, Haijun ;
Dong, Dong ;
Jiang, Hao ;
Liu, Yuan ;
Shen, Zhonglin ;
Guo, Yinuo ;
Zhao, Di ;
Zhang, Zhuo ;
Guo, Min .
ADDITIVE MANUFACTURING, 2023, 73
[43]   Mechanical properties and failure behavior of silicon nitride based plate and truss lattices fabricated by vat photopolymerization 3D printing [J].
Guo, Huilu ;
Seetoh, Ian ;
Ye, Pengcheng ;
Zhao, Yida ;
Lai, Changquan ;
Du, Zehui ;
Gan, Chee Lip .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2025, 927
[44]   Investigating the correlation and composition of organic components in ZrO2-based slurry on printability improvement and defect suppression of Vat photopolymerization [J].
Gong, Huaqiang ;
Wang, Chengyun ;
Wu, Han ;
Luo, Xin ;
Liang, Jiahua ;
Li, Nan ;
Chen, Shenggui ;
Long, Yu .
MATERIALS TODAY COMMUNICATIONS, 2023, 34
[45]   Affordable Biocidal Ultraviolet Cured Cuprous Oxide Filled Vat Photopolymerization Resin Nanocomposites with Enhanced Mechanical Properties [J].
Petousis, Markos ;
Vidakis, Nectarios ;
Velidakis, Emmanuel ;
Kechagias, John D. ;
David, Constantine N. ;
Papadakis, Stefanos ;
Mountakis, Nikolaos .
BIOMIMETICS, 2022, 7 (01)
[46]   Spatially controlling the mechanical properties of 3D printed objects by dual-wavelength vat photopolymerization [J].
Cazin, Ines ;
Gleirscher, Milena Olga ;
Fleisch, Mathias ;
Berer, Michael ;
Sangermano, Marco ;
Schloegl, Sandra .
ADDITIVE MANUFACTURING, 2022, 57
[47]   Complex SiC-based structures with high specific strength fabricated by vat photopolymerization and one-step pyrolysis [J].
Cao, Jiwei ;
Idrees, Muhammad ;
Tian, Guoqiang ;
Liu, Jian ;
Xiong, Shufeng ;
Yuan, Jingkun ;
Wang, Pei ;
Liu, Zhiyuan ;
Liu, Changyong ;
Chen, Zhangwei .
ADDITIVE MANUFACTURING, 2021, 48
[48]   High-strength porous YSZ ceramics fabricated by TBA-based gelcasting with high solid loading slurry [J].
Zhou, Jun ;
Wang, Chang-an ;
Yao, Shenglian ;
Dong, Yanhao ;
Huang, Yong .
HIGH-PERFORMANCE CERAMICS VII, PTS 1 AND 2, 2012, 512-515 :310-314
[49]   Effects of Solid Loading in Initial Slurry on Microstructure and Properties of Porous Mullite Ceramics [J].
Li Yutao ;
Wang Chang'an ;
Zhao Chenchen .
RARE METAL MATERIALS AND ENGINEERING, 2011, 40 :540-543
[50]   Mechanical behavior of porous alumina under quasi-static and dynamic loading [J].
Henry, Q. ;
Le Barbenchon, L. ;
Viot, P. ;
Cosculluela, A. ;
Kopp, J. -b. .
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING, 2025, 206