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Evolution of the microstructure and mechanical properties of stereolithography formed alumina cores sintered in vacuum
Li, He1,2; Liu, Yongsheng1,2; Liu, Yansong1,2; Zeng, Qingfeng1; Wang, Jing1,2; Hu, Kehui3,4; Lu, Zhigang3,4; Liang, Jingjing5
Corresponding AuthorLiu, Yongsheng(yongshengliu@nwpu.edu.cn) ; Zeng, Qingfeng(qfzeng@nwpu.edu.cn)
2020-11-01
Source PublicationJOURNAL OF THE EUROPEAN CERAMIC SOCIETY
ISSN0955-2219
Volume40Issue:14Pages:4825-4836
AbstractStereolithography (SL) was used to form alumina ceramic cores. The effect of sintering temperature on the microstructure and mechanical properties of the alumina ceramics are investigated, which were sintered in vacuum. The results indicate that, as the sintering temperature increased the particle size of alumina slightly increased, and the interlayer spacing first decreased and then increased. The open porosity of alumina ceramics significantly decreased as the sintering temperature in vacuum increased. The flexural strength and hardness increased as the sintering temperature increased. When sintered at 1150 degrees C, the flexural strength was found to be 33.7 MPa, the shrinkage was 2.3 %, 2.4 %, and 5.3 % in the X, Y, and Z directions, respectively, and the open porosity was 37.9 %. These results are similar to those found from sintering at 1280 degrees C in air.
KeywordStereolithography Aluminum oxide Sintering temperature Vacuum Ceramic cores
Funding OrganizationNational Key Research and Development Program of China ; Chinese National Foundation for Natural Sciences
DOI10.1016/j.jeurceramsoc.2019.11.047
Indexed BySCI
Language英语
Funding ProjectNational Key Research and Development Program of China[2018YFB1106600] ; Chinese National Foundation for Natural Sciences[51672217]
WOS Research AreaMaterials Science
WOS SubjectMaterials Science, Ceramics
WOS IDWOS:000556262000015
PublisherELSEVIER SCI LTD
Citation statistics
Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/140090
Collection中国科学院金属研究所
Corresponding AuthorLiu, Yongsheng; Zeng, Qingfeng
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. Evolution of the microstructure and mechanical properties of stereolithography formed alumina cores sintered in vacuum[J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,2020,40(14):4825-4836.
APA Li, He.,Liu, Yongsheng.,Liu, Yansong.,Zeng, Qingfeng.,Wang, Jing.,...&Liang, Jingjing.(2020).Evolution of the microstructure and mechanical properties of stereolithography formed alumina cores sintered in vacuum.JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,40(14),4825-4836.
MLA Li, He,et al."Evolution of the microstructure and mechanical properties of stereolithography formed alumina cores sintered in vacuum".JOURNAL OF THE EUROPEAN CERAMIC SOCIETY 40.14(2020):4825-4836.
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