Microstructure and mechanical properties of 3D-printed nano-silica reinforced alumina cores
文献类型:期刊论文
作者 | Liu, Jiaqi5; Li, Qiaolei3,4; Huo, Mingda5; Zhang, Xiuyuan5; Yue, Xinyan2,5; Liang, Jingjing1,4; Li, Jinguo1,4 |
刊名 | CERAMICS INTERNATIONAL |
出版日期 | 2022-10-15 |
卷号 | 48期号:20页码:30282-30293 |
ISSN号 | 0272-8842 |
关键词 | Ceramic cores 3D printing Nano particle Microstructure Mechanical properties |
DOI | 10.1016/j.ceramint.2022.06.301 |
通讯作者 | Li, Qiaolei(lql_614@163.com) ; Yue, Xinyan(yuexy@atm.neu.edu.cn) ; Li, Jinguo(jgli@imr.ac.cn) |
英文摘要 | Ceramic cores are an important component in the preparation of hollow turbine blades for aero-engines. Compared with traditional hot injection technology, 3D printing technology overcomes the disadvantages of a long production cycle and the difficulty in producing highly complex ceramic cores. The ceramic cores of hollow turbine blades require a high bending strength at high temperatures, and nano-mineralizers greatly improve their strength. In this study, nano-silica-reinforced alumina-based ceramic cores were prepared, and the effects of nanopowder content on the microstructure and properties of the ceramic cores were investigated. Alumina-based ceramic cores contained with nano-silica were prepared using the vat photopolymerization 3D printing technique and sintered at 1500 ?. The results showed that the linear shrinkage of ceramic cores first increased and then decreased as the nano-silica powder content increased, and the bending strength showed the same trend. The fracture mode changed from intergranular to transgranular. The open porosity and bulk density fluctuated slightly. The weight loss rate was approximately 20%. When the nano-silica content was 3%, the bending strength reached a maximum of 46.2 MPa and 26.1 MPa at 25 ? and 1500 ?, respectively. The precipitation of the glass phase, change in the fracture mode of the material, pinning crack of nanoparticles, and reduction of fracture energy due to the interlocking of cracks, were the main reasons for material strengthening. The successful preparation of 3D printed nano-silica reinforced alumina-based ceramic cores is expected to promote the preparation of high-performance ceramic cores with complex structures of hollow turbine blades. |
资助项目 | National Key Research and Devel- opment Program of China[2021YFB3702503] ; National Key Research and Devel- opment Program of China[2021YFB3702500] ; National Science and Technology Major Project[2019 -VII -0019-0161] ; National Science and Technology Major Project[Y2019 -VII -0011-0151] ; Fundamental Research Funds for the Central Universities[WK5290000002] |
WOS研究方向 | Materials Science |
语种 | 英语 |
出版者 | ELSEVIER SCI LTD |
WOS记录号 | WOS:000848682600002 |
资助机构 | National Key Research and Devel- opment Program of China ; National Science and Technology Major Project ; Fundamental Research Funds for the Central Universities |
源URL | [http://ir.imr.ac.cn/handle/321006/175067] |
专题 | 金属研究所_中国科学院金属研究所 |
通讯作者 | Li, Qiaolei; Yue, Xinyan; Li, Jinguo |
作者单位 | 1.Space Mfg Technol CAS Key Lab, Beijing 100094, Peoples R China 2.Northeastern Univ, Inst Adv Ceram, Sch Mat Sci & Engn, Shenyang 110819, Peoples R China 3.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 4.Chinese Acad Sci, Inst Met Res, Shi changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China 5.Northeastern Univ, Sch Mat Sci & Engn, Key Lab Anisotropy & Texture Mat, Minist Educ, Shenyang 110819, Peoples R China |
推荐引用方式 GB/T 7714 | Liu, Jiaqi,Li, Qiaolei,Huo, Mingda,et al. Microstructure and mechanical properties of 3D-printed nano-silica reinforced alumina cores[J]. CERAMICS INTERNATIONAL,2022,48(20):30282-30293. |
APA | Liu, Jiaqi.,Li, Qiaolei.,Huo, Mingda.,Zhang, Xiuyuan.,Yue, Xinyan.,...&Li, Jinguo.(2022).Microstructure and mechanical properties of 3D-printed nano-silica reinforced alumina cores.CERAMICS INTERNATIONAL,48(20),30282-30293. |
MLA | Liu, Jiaqi,et al."Microstructure and mechanical properties of 3D-printed nano-silica reinforced alumina cores".CERAMICS INTERNATIONAL 48.20(2022):30282-30293. |
入库方式: OAI收割
来源:金属研究所
浏览0
下载0
收藏0
其他版本
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。