Effects of Solvent Debinding on the Microstructure and Properties of 3D-Printed Alumina Ceramics

doi:10.1021/acsomega.0c03944

CORC > 金属研究所 > 中国科学院金属研究所

	Effects of Solvent Debinding on the Microstructure and Properties of 3D-Printed Alumina Ceramics
	Li, He 4,5; Liu, Yongsheng 4,5; Liu, Yansong 4,5; Hu, Kehui 1,3; Lu, Zhigang 1,3; Liang, Jingjing 2
刊名	ACS OMEGA
	2020-10-27
卷号	5 期号:42 页码:27455-27462
ISSN号	2470-1343
DOI	10.1021/acsomega.0c03944
通讯作者	Liu, Yongsheng(yongshengliu@nwpu.edu.cn)
英文摘要	Solvents 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.
资助项目	National 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研究方向	Chemistry
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000586784200053
资助机构	National Key Research and Development Program of China ; Chinese National Foundation for Natural Sciences ; Innovation Foundation for Doctor Dissertation of Northwestern Polytechnical University
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/141395]
专题	金属研究所_中国科学院金属研究所
通讯作者	Liu, Yongsheng
作者单位	1.Tsinghua Univ, Dept Mech Engn, Beijing 100084, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 3.Tsinghua Univ, State Key Lab Tribol, Beijing 100084, Peoples R China 4.Northwestern Polytech Univ, NPU SAS Joint Res Ctr Adv Ceram, Xian 710072, Shaanxi, Peoples R China 5.Northwestern Polytech Univ, Sci & Technol Thermostruct Composite Mat Lab, Xian 710072, Shaanxi, Peoples R China
推荐引用方式 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.