| Microstructure and mechanical properties of 3D printed ceramics with different vinyl acetate contents | |
| Li, He1,2; Liu, Yong-Sheng1,2; Liu, Yan-Song1,2; Zeng, Qing-Feng1; Liang, Jing-Jing3 | |
| Corresponding Author | Liu, Yong-Sheng(yongshengliu@nwpu.edu.cn) |
| 2021-03-02 | |
| Source Publication | RARE METALS
 |
| ISSN | 1001-0521 |
| Pages | 10 |
| Abstract | Stereolithography (SL)-based three-dimensional (3D) printing technique is an efficient method for the fabrication of alumina ceramics. The alumina slurry is difficult to obtain due to the barrier between hydrophilic alumina and oleophilic resin. It not only requires that the ceramic slurry possessed low viscosity and uniformity, but also requires that the slurry could complete the photocuring process. In this study, vinyl acetate was added in the ceramic slurry as a bridge to connect alumina and resin, and the effects of vinyl acetate content on the microstructure and mechanical properties of the alumina ceramics were systematically investigated. The results showed that the alumina ceramics were composed of three types of particles which included large aggregates, individual particles, and long-columnshaped particles. The shrinkage, bulk density, and crystallite size of the ceramics increased with the increase in vinyl acetate content. The open porosity decreased with the increase in vinyl acetate content. The flexural strength of the ceramics first increased and subsequently decreased with the increase in vinyl acetate content. The shrinkage in Z direction was much greater than that in X or Y direction. Based on the above results, the optimum vinyl acetate content for alumina slurry was 10 wt%, which resulted in sintered ceramic with the shrinkage of 15.6% in X direction, 13.5% in Y direction, 21.9% in Z direction, bulk density of 1.9 g.cm(-3), open porosity of 50.1%, and flexural strength of 24.4 MPa. The sintered ceramics satisfy the requirement of alumina ceramic cores. |
| Keyword | Stereolithography Alumina ceramics Vinyl acetate Microstructure Mechanical properties |
| Funding Organization | National Key Research and Development Program of China ; National Natural Foundation of China ; Innovation Foundation for Doctor Dissertation of Northwestern Polytechnical University |
| DOI | 10.1007/s12598-020-01685-x |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Key Research and Development Program of China[2018YFB1106600] ; National Natural Foundation of China[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 |
| WOS ID | WOS:000623792600002 |
| Publisher | NONFERROUS METALS SOC CHINA |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/161094 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Liu, Yong-Sheng |
| Affiliation | 1.Northwestern Polytech Univ, Sci & Technol Thermostruct Composite Mat Lab, Xian 710072, Peoples R China 2.Northwestern Polytech Univ, NPU SAS Joint Res Ctr Adv Ceram, Xian 710072, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China |
| Recommended Citation GB/T 7714 | Li, He,Liu, Yong-Sheng,Liu, Yan-Song,et al. Microstructure and mechanical properties of 3D printed ceramics with different vinyl acetate contents[J]. RARE METALS,2021:10. |
| APA | Li, He,Liu, Yong-Sheng,Liu, Yan-Song,Zeng, Qing-Feng,&Liang, Jing-Jing.(2021).Microstructure and mechanical properties of 3D printed ceramics with different vinyl acetate contents.RARE METALS,10. |
| MLA | Li, He,et al."Microstructure and mechanical properties of 3D printed ceramics with different vinyl acetate contents".RARE METALS (2021):10. |
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