IMR OpenIR
Influence of debinding holding time on mechanical properties of 3D-printed alumina ceramic cores
Li, He1,2; Liu, Yongsheng1,2; Liu, Yansong1,2; Zeng, Qingfeng1; Hu, Kehui3,4; Lu, Zhigang3,4; Liang, Jingjing5; Li, Jinguo5
Corresponding AuthorLiu, Yongsheng(yongshengliu@nwpu.edu.cn)
2021-02-15
Source PublicationCERAMICS INTERNATIONAL
ISSN0272-8842
Volume47Issue:4Pages:11
AbstractHerein, alumina green bodies are fabricated by three dimensional (3D) printing technology, then, the influence of debinding holding time under vacuum and argon on mechanical properties is systematically investigated by comparing the changes in microstructure, bulk density, open porosity, grain connection situation and flexural strength of ceramics. The flexural strength of alumina ceramics acquired the maximum values of 26.4 +/- 0.7 MPa and 25.1 +/- 0.5 MPa after debinding under vacuum and argon for 120 min and 180 min, respectively. However, the alumina ceramics rendered the flexural strength of 19.4 +/- 0.6 MPa and 9.5 +/- 0.4 MPa under vacuum and argon without extended holding time, respectively. The relatively low mechanical properties can be mainly attributed to the weak interlayer binding force, which is caused by layer-by-layer forming mode during 3D printing process and anisotropic shrinkage during the sintering process. Moreover, the alumina ceramics exhibited moderate bulk density and open porosity of 2.4 g/cm(3) and 42% after the sintering process, respectively, which are mainly influenced by the microstructural evolution of alumina ceramics during thermal treatment. Also, the diffusion of gases is achieved by curing of photosensitive resin and influenced by different holding times during debinding, affecting the mechanical properties of sintered ceramics. The mechanical properties of as-sintered ceramics are suitable for the utilization of ceramic cores in the manufacturing of hollow blades.
Keyword3D printing Ceramic cores Holding time Debinding Mechanical 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.ceramint.2020.10.061
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 AreaMaterials Science
WOS SubjectMaterials Science, Ceramics
WOS IDWOS:000608686200006
PublisherELSEVIER SCI LTD
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/159054
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. Influence of debinding holding time on mechanical properties of 3D-printed alumina ceramic cores[J]. CERAMICS INTERNATIONAL,2021,47(4):11.
APA Li, He.,Liu, Yongsheng.,Liu, Yansong.,Zeng, Qingfeng.,Hu, Kehui.,...&Li, Jinguo.(2021).Influence of debinding holding time on mechanical properties of 3D-printed alumina ceramic cores.CERAMICS INTERNATIONAL,47(4),11.
MLA Li, He,et al."Influence of debinding holding time on mechanical properties of 3D-printed alumina ceramic cores".CERAMICS INTERNATIONAL 47.4(2021):11.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Li, He]'s Articles
[Liu, Yongsheng]'s Articles
[Liu, Yansong]'s Articles
Baidu academic
Similar articles in Baidu academic
[Li, He]'s Articles
[Liu, Yongsheng]'s Articles
[Liu, Yansong]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Li, He]'s Articles
[Liu, Yongsheng]'s Articles
[Liu, Yansong]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.