Manufacturing of ceramic cores: From hot injection to 3D printing

doi:10.1016/j.jmst.2022.06.033

CORC > 金属研究所 > 中国科学院金属研究所

	Manufacturing of ceramic cores: From hot injection to 3D printing
	Li, Qiaolei 3,4; Chen, Tianci 2,4; Liang, Jingjing 1,3; Zhang, Chaowei 3; Li, Jinguo 1,3; Zhou, Yizhou 3; Sun, Xiaofeng 3
刊名	JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
	2023-01-20
卷号	134 页码:95-105
关键词	Ceramic cores 3D printing Hot injection Anisotropic Layer structure
ISSN号	1005-0302
DOI	10.1016/j.jmst.2022.06.033
通讯作者	Liang, Jingjing(jjliang@imr.ac.cn) ; Li, Jinguo(jgli@imr.ac.cn)
英文摘要	With the improvement of aero-engine performance, the preparation of hollow blades of single-crystal superalloys with complex inner cavity cooling structures is becoming increasingly urgent. The ceramic core is the key intermediate part of the preparation and has attracted wide attention. To meet this challenge, new technologies that can make up for the defects of long periods and high costs of fabricating complex structural cores by traditional hot injection technology are needed. Vat photopolymerization 3D printing ceramic technology has been applied to the core field to realize the rapid preparation of complex structural cores. However, the industrial application of this technology still needs further research and improvement. Herein, ceramic cores were prepared using traditional hot injection and vat photopolymer-ization 3D printing techniques using fused silica, nano-ZrO2, and Al2O3 powders as starting materials. The 3D printed ceramic core has a typical layered structure with a small pore size and low porosity. Because of the layered structure, the pore area is larger than that of the hot injection ceramic core, the leaching performance has little effect (0.0277 g/min for 3D printing cores, 0.298 g/min for hot injection cores). In the X and Y directions, the sintering shrinkage is low (2.7%), but in the Z direction, the shrinkage is large (4.7%). The fracture occurs when the inner layer crack expands and connects with the interlayer crack, forming a stepped fracture in the 3D-printed cores. The bending strength of the 3D printed core at high temperature (1500 degrees C) is 17.3 MPa. These analyses show that the performance of vat photopolymerization 3D-printed ceramic cores can meet the casting requirements of single crystal superalloy blades, which is a potential technology for the preparation of complex structure ceramic cores. The research mode of 3D printing core technology based on the traditional hot injection process provides an effective new idea for promoting the industrial application of 3D printing core technology. (c) 2022 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
资助项目	National Key Re-search and Development Program of China[2021YFB3702500] ; National Key Re-search and Development Program of China[2018YFB1106600] ; National Science and Technology Ma-jor Project[2019-VII-0019-0161] ; National Science and Technology Ma-jor Project[Y2019-VII-0011-0151] ; Fundamental Research Funds for the Central Universities[WK5290000003]
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:000835320800005
资助机构	National Key Re-search and Development Program of China ; National Science and Technology Ma-jor Project ; Fundamental Research Funds for the Central Universities
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/174599]
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.Space Mfg Technol CAS Key Lab, Beijing 100094, Peoples R China 2.Northeastern Univ, Sch Mat Sci & Engn, Shenyang 110819, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China 4.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Li, Qiaolei,Chen, Tianci,Liang, Jingjing,et al. Manufacturing of ceramic cores: From hot injection to 3D printing[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2023,134:95-105.
APA	Li, Qiaolei.,Chen, Tianci.,Liang, Jingjing.,Zhang, Chaowei.,Li, Jinguo.,...&Sun, Xiaofeng.(2023).Manufacturing of ceramic cores: From hot injection to 3D printing.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,134,95-105.
MLA	Li, Qiaolei,et al."Manufacturing of ceramic cores: From hot injection to 3D printing".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 134(2023):95-105.