Effect of burying sintering on the properties of ceramic cores via 3D printing

doi:10.1016/j.jmapro.2020.07.007

CORC > 金属研究所 > 中国科学院金属研究所

	Effect of burying sintering on the properties of ceramic cores via 3D printing
	Li, He 2,3; Liu, Yongsheng 2,3; Liu, Yansong 2,3; Zeng, Qingfeng 3; Hu, Kehui 1,5; Lu, Zhigang 1,5; Liang, Jingjing 4
刊名	JOURNAL OF MANUFACTURING PROCESSES
	2020-09-01
卷号	57 页码:380-388
关键词	Burying sintering Ceramic cores 3D printing Stereolithography Properties
ISSN号	1526-6125
DOI	10.1016/j.jmapro.2020.07.007
通讯作者	Liu, Yongsheng(yongshengliu@nwpu.edu.cn)
英文摘要	In this work, 3D printed alumina green bodies were subjected to burying sintering using different alumina particle sizes to obtain ceramics. The effects of buried alumina particle size on the microstructure and properties of the sintered ceramics were investigated. The results showed that the shrinkage, density, and flexural strength of the ceramics increased as the alumina particle size increased from 5 mu m to 1000 mu m but decreased as the particle size further increased to 2000 mu m The open porosity decreased as the alumina particle size increased from 5 mu m to 1000 mu m but increased as the particle size further increased to 2000 mu m The sintered alumina ceramics were composed of layers, and interlayering spacing phenomenon was observed. The optimum particle size of buried alumina was 1000 mu m, which resulted in sintered ceramics with shrinkage of 2.2 % in X direction, 2.1 % in Y direction, and 3.8 % in Z direction, density of 2.42 g/cm(3), open porosity of 41.5 %, and flexural strength of 25.8 MPa. Buried powder sintering helped to support the green bodies, and also restrained the deformation of the sintered ceramics because the volatilization of the cured photosensitive resin compensated the vapor pressure in the environment. Compared with the ceramics sintered without buried powder, the ceramics subjected to burying sintering exhibited smaller shrinkage, lower bulk density, and higher open porosity. These features could not only diminish the deformation of the sintered ceramics, but could also facilitate the removal process in the manufacturing of hollow blades.
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	Engineering
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000569313200006
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
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/140484]
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.Tsinghua Univ, Dept Mech Engn, Beijing 100084, Peoples R China 2.Northwestern Polytech Univ, NPU SAS Joint Res Ctr Adv Ceram, Xian 710072, Shaanxi, Peoples R China 3.Northwestern Polytech Univ, Sci & Technol Thermostruct Composite Mat Lab, Xian 710072, Shaanxi, Peoples R China 4.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 5.Tsinghua Univ, State Key Lab Tribol, Beijing 100084, Peoples R China
推荐引用方式 GB/T 7714	Li, He,Liu, Yongsheng,Liu, Yansong,et al. Effect of burying sintering on the properties of ceramic cores via 3D printing[J]. JOURNAL OF MANUFACTURING PROCESSES,2020,57:380-388.
APA	Li, He.,Liu, Yongsheng.,Liu, Yansong.,Zeng, Qingfeng.,Hu, Kehui.,...&Liang, Jingjing.(2020).Effect of burying sintering on the properties of ceramic cores via 3D printing.JOURNAL OF MANUFACTURING PROCESSES,57,380-388.
MLA	Li, He,et al."Effect of burying sintering on the properties of ceramic cores via 3D printing".JOURNAL OF MANUFACTURING PROCESSES 57(2020):380-388.