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Effect of debinding temperature under an argon atmosphere on the microstructure and properties of 3D-printed alumina ceramics
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)
2020-10-01
Source PublicationMATERIALS CHARACTERIZATION
ISSN1044-5803
Volume168Pages:10
AbstractDebinding at different temperatures under an argon atmosphere, combined with sintering, was used to obtain alumina ceramics fabricated from stereolithography-based 3D printing. The effect of debinding temperature under an argon atmosphere on the microstructure, physical, and mechanical properties were investigated. The results showed that the alumina ceramics had a layered structure, and the interlayer spacing first increased and then decreased with the debinding temperature. Some carbon residue was observed when debinding was performed between 350 and 450 degrees C, and no residual carbon was observed when the debinding temperature was higher than 500 degrees C. The shrinkage in the Z direction was much greater than that of the X or Y directions due to layer-by-layer forming mode. There was a slight fluctuation in mechanical properties such as flexural strength (18.9-22.3 MPa), Vickers hardness (110.6-173.7 HV), and nano-indentation hardness (16.9-22.6 GPa). The optimal debinding temperature was 500 degrees C under an argon atmosphere, which displayed a shrinkage of 2.3% in the X direction, 1.9% in the Y direction, and 3.4% in the Z direction. At this temperature, the flexural strength of the ceramics was 22.3 MPa and the open porosity of the ceramics was 35.6%.
KeywordDebinding temperature Argon atmosphere Alumina ceramics Flexural strength Stereolithography
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.matchar.2020.110548
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 ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Materials Science, Characterization & Testing
WOS IDWOS:000571730700001
PublisherELSEVIER SCIENCE INC
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/140679
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 debinding temperature under an argon atmosphere on the microstructure and properties of 3D-printed alumina ceramics[J]. MATERIALS CHARACTERIZATION,2020,168:10.
APA Li, He.,Liu, Yongsheng.,Liu, Yansong.,Zeng, Qingfeng.,Hu, Kehui.,...&Liang, Jingjing.(2020).Effect of debinding temperature under an argon atmosphere on the microstructure and properties of 3D-printed alumina ceramics.MATERIALS CHARACTERIZATION,168,10.
MLA Li, He,et al."Effect of debinding temperature under an argon atmosphere on the microstructure and properties of 3D-printed alumina ceramics".MATERIALS CHARACTERIZATION 168(2020):10.
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