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Microstructure and mechanical properties of 3D printed ceramics with different vinyl acetate contents
Li, He1,2; Liu, Yong-Sheng1,2; Liu, Yan-Song1,2; Zeng, Qing-Feng1; Liang, Jing-Jing3
Corresponding AuthorLiu, Yong-Sheng(yongshengliu@nwpu.edu.cn)
2021-03-02
Source PublicationRARE METALS
ISSN1001-0521
Pages10
AbstractStereolithography (SL)-based three-dimensional (3D) printing technique is an efficient method for the fabrication of alumina ceramics. The alumina slurry is difficult to obtain due to the barrier between hydrophilic alumina and oleophilic resin. It not only requires that the ceramic slurry possessed low viscosity and uniformity, but also requires that the slurry could complete the photocuring process. In this study, vinyl acetate was added in the ceramic slurry as a bridge to connect alumina and resin, and the effects of vinyl acetate content on the microstructure and mechanical properties of the alumina ceramics were systematically investigated. The results showed that the alumina ceramics were composed of three types of particles which included large aggregates, individual particles, and long-columnshaped particles. The shrinkage, bulk density, and crystallite size of the ceramics increased with the increase in vinyl acetate content. The open porosity decreased with the increase in vinyl acetate content. The flexural strength of the ceramics first increased and subsequently decreased with the increase in vinyl acetate content. The shrinkage in Z direction was much greater than that in X or Y direction. Based on the above results, the optimum vinyl acetate content for alumina slurry was 10 wt%, which resulted in sintered ceramic with the shrinkage of 15.6% in X direction, 13.5% in Y direction, 21.9% in Z direction, bulk density of 1.9 g.cm(-3), open porosity of 50.1%, and flexural strength of 24.4 MPa. The sintered ceramics satisfy the requirement of alumina ceramic cores.
KeywordStereolithography Alumina ceramics Vinyl acetate Microstructure Mechanical properties
Funding OrganizationNational Key Research and Development Program of China ; National Natural Foundation of China ; Innovation Foundation for Doctor Dissertation of Northwestern Polytechnical University
DOI10.1007/s12598-020-01685-x
Indexed BySCI
Language英语
Funding ProjectNational Key Research and Development Program of China[2018YFB1106600] ; National Natural Foundation of China[51672217] ; Innovation Foundation for Doctor Dissertation of Northwestern Polytechnical University[CX202006]
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000623792600002
PublisherNONFERROUS METALS SOC CHINA
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/161095
Collection中国科学院金属研究所
Corresponding AuthorLiu, Yong-Sheng
Affiliation1.Northwestern Polytech Univ, Sci & Technol Thermostruct Composite Mat Lab, Xian 710072, Peoples R China
2.Northwestern Polytech Univ, NPU SAS Joint Res Ctr Adv Ceram, Xian 710072, Peoples R China
3.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Li, He,Liu, Yong-Sheng,Liu, Yan-Song,et al. Microstructure and mechanical properties of 3D printed ceramics with different vinyl acetate contents[J]. RARE METALS,2021:10.
APA Li, He,Liu, Yong-Sheng,Liu, Yan-Song,Zeng, Qing-Feng,&Liang, Jing-Jing.(2021).Microstructure and mechanical properties of 3D printed ceramics with different vinyl acetate contents.RARE METALS,10.
MLA Li, He,et al."Microstructure and mechanical properties of 3D printed ceramics with different vinyl acetate contents".RARE METALS (2021):10.
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