Balancing flexural strength and porosity in DLP-3D printing Al2O3 cores for hollow turbine blades

doi:10.1016/j.jmst.2021.05.077

CORC > 金属研究所 > 中国科学院金属研究所

	Balancing flexural strength and porosity in DLP-3D printing Al2O3 cores for hollow turbine blades
	Li, Qiaolei 2,3; An, Xiaolong 2,3; Liang, Jingjing 3,4; Liu, Yongsheng 1; Hu, Kehui 5; Lu, Zhigang 5; Yue, Xinyan 6; Li, Jinguo 3,4; Zhou, Yizhou 3; Sun, Xiaofeng 3
刊名	JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
	2022-03-30
卷号	104 页码:19-32
关键词	3D printing Ceramic cores Flexural strength Porosity Sintering temperature
ISSN号	1005-0302
DOI	10.1016/j.jmst.2021.05.077
通讯作者	Liang, Jingjing(jjliang@imr.ac.cn) ; Li, Jinguo(jgli@imr.ac.cn)
英文摘要	High porosity and high strength are usually mutually exclusive in the preparation of ceramic materials. However, high porosity and flexural strength are required for the preparation of complex ceramic cores for hollow turbine blades. In this study, Al2O3 cores with high porosity and high flexural strength were successfully prepared using digital light processing (DLP) 3D printing technology. The influence of sin -tering temperature on the microstructure, pore evolution, and flexural strength of the cores were investi-gated. With an increase in the sintering temperature, the porosity of the ceramic cores first increased and then decreased, reaching a maximum value of 35% at 1400 degrees C. The flexural strength increased with the increase in sintering temperature, but at 1400 degrees C the incremental enhancement of flexural strength was greatest. Combined with the core service requirements and core performance, this study selected 1400 degrees C (open porosity of 35.1% and flexural strength of 20.3 MPa) as the optimal sintering temperature for the DLP-3D printed Al2O3 core. (C) 2022 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
资助项目	National Key R&D Program of China[2018YFB1106600] ; Fundamental Research Funds for Central Universities[WK5290000002]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	JOURNAL MATER SCI TECHNOL
WOS记录号	WOS:000773072000003
资助机构	National Key R&D Program of China ; Fundamental Research Funds for Central Universities
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/173041]
专题	金属研究所_中国科学院金属研究所
通讯作者	Liang, Jingjing; Li, Jinguo
作者单位	1.Northwestern Polytech Univ, NPU SAS Joint Res Ctr Adv Ceram, Xian 710072, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 3.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, Shenyang 110016, Peoples R China 4.Space Mfg Technol CAS Key Lab, Beijing 100094, Peoples R China 5.Tsinghua Univ, State Key Lab Tribol, Beijing 100084, Peoples R China 6.Northeastern Univ, Sch Mat Sci & Engn, Shenyang 110819, Peoples R China
推荐引用方式 GB/T 7714	Li, Qiaolei,An, Xiaolong,Liang, Jingjing,et al. Balancing flexural strength and porosity in DLP-3D printing Al2O3 cores for hollow turbine blades[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2022,104:19-32.
APA	Li, Qiaolei.,An, Xiaolong.,Liang, Jingjing.,Liu, Yongsheng.,Hu, Kehui.,...&Sun, Xiaofeng.(2022).Balancing flexural strength and porosity in DLP-3D printing Al2O3 cores for hollow turbine blades.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,104,19-32.
MLA	Li, Qiaolei,et al."Balancing flexural strength and porosity in DLP-3D printing Al2O3 cores for hollow turbine blades".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 104(2022):19-32.