| Effect of burying sintering on the properties of ceramic cores via 3D printing | |
| 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) |
| 2020-09-01 | |
| Source Publication | JOURNAL OF MANUFACTURING PROCESSES
 |
| ISSN | 1526-6125 |
| Volume | 57Pages:380-388 |
| Abstract | In this work, 3D printed alumina green bodies were subjected to burying sintering using different alumina particle sizes to obtain ceramics. The effects of buried alumina particle size on the microstructure and properties of the sintered ceramics were investigated. The results showed that the shrinkage, density, and flexural strength of the ceramics increased as the alumina particle size increased from 5 mu m to 1000 mu m but decreased as the particle size further increased to 2000 mu m The open porosity decreased as the alumina particle size increased from 5 mu m to 1000 mu m but increased as the particle size further increased to 2000 mu m The sintered alumina ceramics were composed of layers, and interlayering spacing phenomenon was observed. The optimum particle size of buried alumina was 1000 mu m, which resulted in sintered ceramics with shrinkage of 2.2 % in X direction, 2.1 % in Y direction, and 3.8 % in Z direction, density of 2.42 g/cm(3), open porosity of 41.5 %, and flexural strength of 25.8 MPa. Buried powder sintering helped to support the green bodies, and also restrained the deformation of the sintered ceramics because the volatilization of the cured photosensitive resin compensated the vapor pressure in the environment. Compared with the ceramics sintered without buried powder, the ceramics subjected to burying sintering exhibited smaller shrinkage, lower bulk density, and higher open porosity. These features could not only diminish the deformation of the sintered ceramics, but could also facilitate the removal process in the manufacturing of hollow blades. |
| Keyword | Burying sintering Ceramic cores 3D printing Stereolithography 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.jmapro.2020.07.007 |
| 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 | Engineering |
| WOS Subject | Engineering, Manufacturing |
| WOS ID | WOS:000569313200006 |
| Publisher | ELSEVIER SCI LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/140483 |
| 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 burying sintering on the properties of ceramic cores via 3D printing[J]. JOURNAL OF MANUFACTURING PROCESSES,2020,57:380-388. |
| APA | Li, He.,Liu, Yongsheng.,Liu, Yansong.,Zeng, Qingfeng.,Hu, Kehui.,...&Liang, Jingjing.(2020).Effect of burying sintering on the properties of ceramic cores via 3D printing.JOURNAL OF MANUFACTURING PROCESSES,57,380-388. |
| MLA | Li, He,et al."Effect of burying sintering on the properties of ceramic cores via 3D printing".JOURNAL OF MANUFACTURING PROCESSES 57(2020):380-388. |
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