IMR OpenIR
Silica strengthened alumina ceramic cores prepared by 3D printing
Li, He1,2; Liu, Yongsheng1,2; Liu, Yansong1,2; Zeng, Qingfeng1; Liang, Jingjing3
Corresponding AuthorLiu, Yongsheng(yongshengliu@nwpu.edu.cn)
2021-04-01
Source PublicationJOURNAL OF THE EUROPEAN CERAMIC SOCIETY
ISSN0955-2219
Volume41Issue:4Pages:2938-2947
AbstractCeramic cores based on alumina and silica are important in the manufacturing of hollow blades. However, obtaining good properties and precision is still challenging. In this research, alumina-based ceramics cores were obtained by 3D printing technology, and the effects of silica contents on the mechanical properties of the as obtained alumina ceramic cores were evaluated. The results showed significant improvements in flexural strengths of the ceramics from 13.3 MPa to 46.3 MPa at silica contents from 0 wt% to 30 wt% due to formation of mullite phase (Al6Si2O13). By contrast, the flexural strengths declined as silica content further increased due to the generation of massive liquid phase. Also, porous structures and cracks were observed by scanning electron microscopy due to the removal of cured photosensitive resin and the mullitization reaction between alumina and silica, respectively. The manufacturing process of hollow blades required ceramic cores with flexural strengths greater than 20 MPa to resist the strike of metal liquid, as well as open porosity above 20 % to provide space for alkali liquor to dissolve the ceramic cores. As a result, 10 wt% silica was determined as the optimal value to yield ceramics with improved properties in terms of flexural strength (35.6 MPa) and open porosity (47.5 %), thereby satisfy the application requirement for the fabrication of ceramic cores.
KeywordSilica Alumina Ceramic cores 3D printing 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.jeurceramsoc.2020.11.050
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:000613646800006
PublisherELSEVIER SCI LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/159175
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.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Li, He,Liu, Yongsheng,Liu, Yansong,et al. Silica strengthened alumina ceramic cores prepared by 3D printing[J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,2021,41(4):2938-2947.
APA Li, He,Liu, Yongsheng,Liu, Yansong,Zeng, Qingfeng,&Liang, Jingjing.(2021).Silica strengthened alumina ceramic cores prepared by 3D printing.JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,41(4),2938-2947.
MLA Li, He,et al."Silica strengthened alumina ceramic cores prepared by 3D printing".JOURNAL OF THE EUROPEAN CERAMIC SOCIETY 41.4(2021):2938-2947.
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.