Silica strengthened alumina ceramic cores prepared by 3D printing
文献类型：期刊论文
| 作者 | Li, He1,2; Liu, Yongsheng1,2; Liu, Yansong1,2; Zeng, Qingfeng1; Liang, Jingjing3 |
| 刊名 | JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
 |
| 出版日期 | 2021-04-01 |
| 卷号 | 41期号:4页码:2938-2947 |
| ISSN号 | 0955-2219 |
| 关键词 | Silica Alumina Ceramic cores 3D printing Mechanical properties |
| DOI | 10.1016/j.jeurceramsoc.2020.11.050 |
| 通讯作者 | Liu, Yongsheng(yongshengliu@nwpu.edu.cn) |
| 英文摘要 | Ceramic cores based on alumina and silica are important in the manufacturing of hollow blades. However, obtaining good properties and precision is still challenging. In this research, alumina-based ceramics cores were obtained by 3D printing technology, and the effects of silica contents on the mechanical properties of the as obtained alumina ceramic cores were evaluated. The results showed significant improvements in flexural strengths of the ceramics from 13.3 MPa to 46.3 MPa at silica contents from 0 wt% to 30 wt% due to formation of mullite phase (Al6Si2O13). By contrast, the flexural strengths declined as silica content further increased due to the generation of massive liquid phase. Also, porous structures and cracks were observed by scanning electron microscopy due to the removal of cured photosensitive resin and the mullitization reaction between alumina and silica, respectively. The manufacturing process of hollow blades required ceramic cores with flexural strengths greater than 20 MPa to resist the strike of metal liquid, as well as open porosity above 20 % to provide space for alkali liquor to dissolve the ceramic cores. As a result, 10 wt% silica was determined as the optimal value to yield ceramics with improved properties in terms of flexural strength (35.6 MPa) and open porosity (47.5 %), thereby satisfy the application requirement for the fabrication of ceramic cores. |
| 资助项目 | 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研究方向 | Materials Science |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCI LTD |
| WOS记录号 | WOS:000613646800006 |
| 资助机构 | National Key Research and Development Program of China ; Chinese National Foundation for Natural Sciences ; Innovation Foundation for Doctor Dissertation of Northwestern Polytechnical University |
| 源URL | [http://ir.imr.ac.cn/handle/321006/159174]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Liu, Yongsheng |
| 作者单位 | 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.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, He,Liu, Yongsheng,Liu, Yansong,et al. Silica strengthened alumina ceramic cores prepared by 3D printing[J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,2021,41(4):2938-2947. |
| APA | Li, He,Liu, Yongsheng,Liu, Yansong,Zeng, Qingfeng,&Liang, Jingjing.(2021).Silica strengthened alumina ceramic cores prepared by 3D printing.JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,41(4),2938-2947. |
| MLA | Li, He,et al."Silica strengthened alumina ceramic cores prepared by 3D printing".JOURNAL OF THE EUROPEAN CERAMIC SOCIETY 41.4(2021):2938-2947. |
入库方式： OAI收割
来源：金属研究所
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