| Improved mechanical properties of silica ceramic cores prepared by 3D printing and sintering processes | |
| Li, He1,2; Hu, Kehui3,4; Liu, Yongsheng1,2; Lu, Zhigang3,4; Liang, Jingjing5 | |
| Corresponding Author | Liu, Yongsheng(yongshengliu@nwpu.edu.cn) ; Lu, Zhigang(lvzg@tsinghua.edu.cn) |
| 2021-03-15 | |
| Source Publication | SCRIPTA MATERIALIA
 |
| ISSN | 1359-6462 |
| Volume | 194Pages:5 |
| Abstract | In this study, silica ceramic cores were fabricated by stereolithography based-3D printing with improved mechanical properties. To this end, the green bodies were first 3D-printed in different directions, and then debinded samples were sintered at different temperatures. The flexural strengths of the ceramics reached a maximum value of 12.1 MPa at a sintering temperature of 1300 degrees C due to the enhanced alpha-cristobalite content responsible for the flexural strength at room temperature. Meanwhile, the flexural strengths of ceramics printed by mode 1 (printing performed parallel to the height direction) were much greater than those printed by mode 2 (printing performed perpendicular to the height direction). The anisotropy flexural strength was caused by the weak binding force between layers. Sintered ceramics composed of alpha-cristobalite, beta-cristobalite, and quartz. In sum, the control over the 3D printing parameters and adjustment of the sintering process would result in ceramics with isotropic mechanical properties. (C) 2020 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved. |
| Keyword | Silica Ceramic cores 3D printing Direction printing Mechanical properties |
| 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.scriptamat.2020.113665 |
| 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 | Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000632783300054 |
| Publisher | PERGAMON-ELSEVIER SCIENCE LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/161914 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Liu, Yongsheng; Lu, Zhigang |
| 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,Hu, Kehui,Liu, Yongsheng,et al. Improved mechanical properties of silica ceramic cores prepared by 3D printing and sintering processes[J]. SCRIPTA MATERIALIA,2021,194:5. |
| APA | Li, He,Hu, Kehui,Liu, Yongsheng,Lu, Zhigang,&Liang, Jingjing.(2021).Improved mechanical properties of silica ceramic cores prepared by 3D printing and sintering processes.SCRIPTA MATERIALIA,194,5. |
| MLA | Li, He,et al."Improved mechanical properties of silica ceramic cores prepared by 3D printing and sintering processes".SCRIPTA MATERIALIA 194(2021):5. |
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