| Effect of sintering temperature on microstructure and properties of 3D printing polysilazane reinforced Al2O3 core | |
| Dong, Wen-jun1; Li, Qiao-lei2,3; Chen, Tian-ci4; Zou, Ming-ke2; Liang, Jing-jing2,5; Liu, Li-rong1; Mei, Hui6; Li, Jin-guo1,2,5 | |
| Corresponding Author | Li, Qiao-lei(lql_614@163.com) ; Li, Jin-guo(jgli@imr.ac.cn) |
| 2023-08-18 | |
| Source Publication | CHINA FOUNDRY
 |
| ISSN | 1672-6421 |
| Pages | 8 |
| Abstract | Ceramic cores are the key intermediate components of hollow blades for aero-engine. Conventional processes, such as hot-press molding and gel film casting, face difficulties in fabricating complex-structured ceramic cores due to the complexity of moulds and long process cycles. Stereolithography 3D printing provides a new idea for the fabrication of complex-structured ceramic cores. The effect of sintering temperature on open porosity, bulk density, weight loss rate, shrinkage rate, flexural strength and microstructure of the Al2O3-based ceramic core doped with 10vol.% polysilazane (PSZ) was studied. The sintering mechanism of PSZ-reinforced ceramic cores was analyzed. Results show that the optimum sintering temperature of PSZ-reinforced ceramic cores is 1,450 & DEG;C. At this temperature, the open porosity of the ceramic core is 36.60%, bulk density is 2.33 g & BULL;cm(-3), weight loss rate is 22.11%, shrinkage rate along the X, Y, Z directions is 5.72%, 5.01%, 9.61%, respectively; the flexural strength is 28.794 MPa at 25 & DEG;C and 13.649 MPa at 1,500 & DEG;C. Properties of 3D printing PSZ-reinforced ceramic cores can meet the casting requirement of superalloy hollow blades, which is expected to promote the industrial application of 3D printing complex structure ceramic cores. |
| Keyword | investment casting ceramic core 3D printing sintering temperature flexural strength |
| Funding Organization | National Natural Science Foundation of China ; National Science and Technology Major Project ; National Key Research and Development Program of China ; Fundamental Research Funds for the Central Universities ; Students' Innovation and Entrepreneurship Foundation of USTC |
| DOI | 10.1007/s41230-023-2122-6 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China[U22A20129] ; National Science and Technology Major Project[2017-VI-0002-0072] ; National Key Research and Development Program of China[2018YFB1106600] ; Fundamental Research Funds for the Central Universities[WK5290000003] ; Students' Innovation and Entrepreneurship Foundation of USTC[CY2022G10] ; Students' Innovation and Entrepreneurship Foundation of USTC[CY2022C24] |
| WOS Research Area | Metallurgy & Metallurgical Engineering |
| WOS Subject | Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:001049989700001 |
| Publisher | SPRINGER SINGAPORE PTE LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/178898 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Li, Qiao-lei; Li, Jin-guo |
| Affiliation | 1.Shenyang Univ Technol, Sch Mat Sci & Engn, Shenyang 110870, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China 3.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 4.Northeastern Univ, Sch Mat Sci & Engn, Shenyang 110819, Peoples R China 5.CAS Key Lab, Space Mfg Technol, Beijing 100094, Peoples R China 6.Northwestern Polytech Univ, Sch Mat Sci & Engn, Sci & Technol Thermostruct Composite Mat Lab, Xian 710072, Peoples R China |
| Recommended Citation GB/T 7714 | Dong, Wen-jun,Li, Qiao-lei,Chen, Tian-ci,et al. Effect of sintering temperature on microstructure and properties of 3D printing polysilazane reinforced Al2O3 core[J]. CHINA FOUNDRY,2023:8. |
| APA | Dong, Wen-jun.,Li, Qiao-lei.,Chen, Tian-ci.,Zou, Ming-ke.,Liang, Jing-jing.,...&Li, Jin-guo.(2023).Effect of sintering temperature on microstructure and properties of 3D printing polysilazane reinforced Al2O3 core.CHINA FOUNDRY,8. |
| MLA | Dong, Wen-jun,et al."Effect of sintering temperature on microstructure and properties of 3D printing polysilazane reinforced Al2O3 core".CHINA FOUNDRY (2023):8. |
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