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Effect of burying sintering on the properties of ceramic cores via 3D printing
Li, He1,2; Liu, Yongsheng1,2; Liu, Yansong1,2; Zeng, Qingfeng1; Hu, Kehui3,4; Lu, Zhigang3,4; Liang, Jingjing5
Corresponding AuthorLiu, Yongsheng(yongshengliu@nwpu.edu.cn)
2020-09-01
Source PublicationJOURNAL OF MANUFACTURING PROCESSES
ISSN1526-6125
Volume57Pages:380-388
AbstractIn 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.
KeywordBurying sintering Ceramic cores 3D printing Stereolithography Properties
Funding OrganizationNational Key Research and Development Program of China ; Chinese National Foundation for Natural Sciences ; Innovation Foundation for Doctor Dissertation of Northwestern Polytechnical University
DOI10.1016/j.jmapro.2020.07.007
Indexed BySCI
Language英语
Funding ProjectNational 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 Research AreaEngineering
WOS SubjectEngineering, Manufacturing
WOS IDWOS:000569313200006
PublisherELSEVIER SCI LTD
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/140483
Collection中国科学院金属研究所
Corresponding AuthorLiu, Yongsheng
Affiliation1.Northwestern Polytech Univ, Sci & Technol Thermostruct Composite Mat Lab, Xian 710072, Shaanxi, Peoples R China
2.Northwestern Polytech Univ, NPU SAS Joint Res Ctr Adv Ceram, Xian 710072, Shaanxi, Peoples R China
3.Tsinghua Univ, Dept Mech Engn, Beijing 100084, Peoples R China
4.Tsinghua Univ, State Key Lab Tribol, Beijing 100084, Peoples R China
5.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
Recommended Citation
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.
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