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Microstructure and properties of 3D-printed alumina ceramics with different heating rates in vacuum debinding
Li, He1,2; Liu, Yong-Sheng1,2; Liu, Yan-Song1,2; Zeng, Qing-Feng1; Hu, Ke-Hui3,4; Liang, Jing-Jing5; Lu, Zhi-Gang3,4
Corresponding AuthorLiu, Yong-Sheng(yongshengliu@nwpu.edu.cn)
2020-02-14
Source PublicationRARE METALS
ISSN1001-0521
Pages12
AbstractThe effect of heating rates during vacuum debinding on the microstructure and mechanical properties of alumina ceramics are discussed in this paper. The three-dimensional (3D)-printed alumina ceramics examined in this study were found to have a layered structure, and interlayer spacing increased as the heating rate increased. The pore diameter, shrinkage, flexural strength and hardness were found to decrease as the heating rate increased due to weak interfacial bonding between alumina particles. Shrinkage was found to be much larger along the Z direction than along the X or Y directions due to the layer-by-layer forming mode during 3D printing. 0.5 degrees C center dot min(-1) is considered the optimum heating rate, yielding ceramics with interlayer spacing of 0.65 mu m, shrinkage of 2.6%, 2.3% and 4.0% along the X, Y and Z directions, respectively, flexural strength of 27.5 MPa, hardness of 29.8 GPa, Vickers hardness of HV 266.5, pore diameter of 356.8 nm, bulk density of 2.5 g center dot cm(-3), and open porosity of 38.4%. The debinding procedure used in this study could be used to produce a high-quality ceramic which can be used for fabricating alumina ceramic cores.
KeywordHeating rate Vacuum debinding Alumina ceramics Three-dimensional (3D) printing Stereolithography
Funding OrganizationNational Key Research and Development Program of China ; National Natural Science Foundation of China
DOI10.1007/s12598-020-01372-x
Indexed BySCI
Language英语
Funding ProjectNational Key Research and Development Program of China[2018YFB1106600] ; National Natural Science Foundation of China[51672217]
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000516266300001
PublisherNONFERROUS METALS SOC CHINA
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/137356
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.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, Yong-Sheng,Liu, Yan-Song,et al. Microstructure and properties of 3D-printed alumina ceramics with different heating rates in vacuum debinding[J]. RARE METALS,2020:12.
APA Li, He.,Liu, Yong-Sheng.,Liu, Yan-Song.,Zeng, Qing-Feng.,Hu, Ke-Hui.,...&Lu, Zhi-Gang.(2020).Microstructure and properties of 3D-printed alumina ceramics with different heating rates in vacuum debinding.RARE METALS,12.
MLA Li, He,et al."Microstructure and properties of 3D-printed alumina ceramics with different heating rates in vacuum debinding".RARE METALS (2020):12.
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