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Effects of Solvent Debinding on the Microstructure and Properties of 3D-Printed Alumina Ceramics
Li, He1,2; Liu, Yongsheng1,2; Liu, Yansong1,2; Hu, Kehui3,4; Lu, Zhigang3,4; Liang, Jingjing5
Corresponding AuthorLiu, Yongsheng(yongshengliu@nwpu.edu.cn)
2020-10-27
Source PublicationACS OMEGA
ISSN2470-1343
Volume5Issue:42Pages:27455-27462
AbstractSolvents assist in the debinding of stereolithography-based 3D-printed alumina green bodies. The green bodies subsequently undergo thermal debinding and sintering to obtain alumina ceramics. In this study, several solvents were tested, including polyethylene glycol, oxalic acid, ammonium hydroxide, ethyl alcohol, methyl methacrylate, butyl acetate, dimethyl carbonate, methanol, ethyl acetate, and sec-butyl alcohol. The tested solvents during the debinding process showed different effects on microstructure and properties of 3D-printed alumina ceramics due to the variable aspects of their solubility toward the binders. The microstructure of the samples changed significantly after green bodies underwent solvent debinding, thermal debinding, and sintering, leading to loose spongy structures, porous aggregates, and compact structures, respectively. Shrinkage, bulk density, and open porosity changed slightly due to the debinding function of different solvents. Polyethylene glycol-impregnated samples displayed the minimum shrinkage in length direction (5.3%). Ethyl alcohol-impregnated sample showed minimum shrinkage in width (4.8%) and height (11.5%) directions. Ammonium hydroxide-impregnated samples exhibited minimum bulk density (2.8 g/cm(3)) and maximum open porosity (28.3%). Dimethyl carbonate-impregnated samples presented minimum flexural strength (32.6 MPa), and oxalic acid-impregnated samples revealed maximum flexural strength (63.4 MPa). In sum, the as-obtained ceramics would be used as ceramic cores for hollow blades in aircraft engines due to their high open porosity and moderate flexural strength.
Funding OrganizationNational Key Research and Development Program of China ; Chinese National Foundation for Natural Sciences ; Innovation Foundation for Doctor Dissertation of Northwestern Polytechnical University
DOI10.1021/acsomega.0c03944
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 AreaChemistry
WOS SubjectChemistry, Multidisciplinary
WOS IDWOS:000586784200053
PublisherAMER CHEMICAL SOC
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/141393
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. Effects of Solvent Debinding on the Microstructure and Properties of 3D-Printed Alumina Ceramics[J]. ACS OMEGA,2020,5(42):27455-27462.
APA Li, He,Liu, Yongsheng,Liu, Yansong,Hu, Kehui,Lu, Zhigang,&Liang, Jingjing.(2020).Effects of Solvent Debinding on the Microstructure and Properties of 3D-Printed Alumina Ceramics.ACS OMEGA,5(42),27455-27462.
MLA Li, He,et al."Effects of Solvent Debinding on the Microstructure and Properties of 3D-Printed Alumina Ceramics".ACS OMEGA 5.42(2020):27455-27462.
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