| Effect of debinding temperature under an argon atmosphere on the microstructure and properties of 3D-printed alumina ceramics | |
| Li, He1,2; Liu, Yongsheng1,2; Liu, Yansong1,2; Zeng, Qingfeng1; Hu, Kehui3,4; Lu, Zhigang3,4; Liang, Jingjing5 | |
| Corresponding Author | Liu, Yongsheng(yongshengliu@nwpu.edu.cn) |
| 2020-10-01 | |
| Source Publication | MATERIALS CHARACTERIZATION
 |
| ISSN | 1044-5803 |
| Volume | 168Pages:10 |
| Abstract | Debinding at different temperatures under an argon atmosphere, combined with sintering, was used to obtain alumina ceramics fabricated from stereolithography-based 3D printing. The effect of debinding temperature under an argon atmosphere on the microstructure, physical, and mechanical properties were investigated. The results showed that the alumina ceramics had a layered structure, and the interlayer spacing first increased and then decreased with the debinding temperature. Some carbon residue was observed when debinding was performed between 350 and 450 degrees C, and no residual carbon was observed when the debinding temperature was higher than 500 degrees C. The shrinkage in the Z direction was much greater than that of the X or Y directions due to layer-by-layer forming mode. There was a slight fluctuation in mechanical properties such as flexural strength (18.9-22.3 MPa), Vickers hardness (110.6-173.7 HV), and nano-indentation hardness (16.9-22.6 GPa). The optimal debinding temperature was 500 degrees C under an argon atmosphere, which displayed a shrinkage of 2.3% in the X direction, 1.9% in the Y direction, and 3.4% in the Z direction. At this temperature, the flexural strength of the ceramics was 22.3 MPa and the open porosity of the ceramics was 35.6%. |
| Keyword | Debinding temperature Argon atmosphere Alumina ceramics Flexural strength Stereolithography |
| Funding Organization | National Key Research and Development Program of China ; Chinese National Foundation for Natural Sciences ; Innovation Foundation for Doctor Dissertation of Northwestern Polytechnical University |
| DOI | 10.1016/j.matchar.2020.110548 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Key Research and Development Program of China[2018YFB1106600] ; Chinese National Foundation for Natural Sciences[51672217] ; Innovation Foundation for Doctor Dissertation of Northwestern Polytechnical University[CX202006] |
| WOS Research Area | Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Materials Science, Characterization & Testing |
| WOS ID | WOS:000571730700001 |
| Publisher | ELSEVIER SCIENCE INC |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/140676 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Liu, Yongsheng |
| Affiliation | 1.Northwestern Polytech Univ, Sci & Technol Thermostruct Composite Mat Lab, Xian 710072, Shaanxi, Peoples R China 2.Northwestern Polytech Univ, NPU SAS Joint Res Ctr Adv Ceram, Xian 710072, Shaanxi, Peoples R China 3.Tsinghua Univ, Dept Mech Engn, Beijing 100084, Peoples R China 4.Tsinghua Univ, State Key Lab Tribol, Beijing 100084, Peoples R China 5.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China |
| Recommended Citation GB/T 7714 | Li, He,Liu, Yongsheng,Liu, Yansong,et al. Effect of debinding temperature under an argon atmosphere on the microstructure and properties of 3D-printed alumina ceramics[J]. MATERIALS CHARACTERIZATION,2020,168:10. |
| APA | Li, He.,Liu, Yongsheng.,Liu, Yansong.,Zeng, Qingfeng.,Hu, Kehui.,...&Liang, Jingjing.(2020).Effect of debinding temperature under an argon atmosphere on the microstructure and properties of 3D-printed alumina ceramics.MATERIALS CHARACTERIZATION,168,10. |
| MLA | Li, He,et al."Effect of debinding temperature under an argon atmosphere on the microstructure and properties of 3D-printed alumina ceramics".MATERIALS CHARACTERIZATION 168(2020):10. |
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