Effect of debinding temperature under an argon atmosphere on the microstructure and properties of 3D-printed alumina ceramics

doi:10.1016/j.matchar.2020.110548

CORC > 金属研究所 > 中国科学院金属研究所

	Effect of debinding temperature under an argon atmosphere on the microstructure and properties of 3D-printed alumina ceramics
	Li, He 1,2; Liu, Yongsheng 1,2; Liu, Yansong 1,2; Zeng, Qingfeng 2; Hu, Kehui 4,5; Lu, Zhigang 4,5; Liang, Jingjing 3
刊名	MATERIALS CHARACTERIZATION
	2020-10-01
卷号	168 页码:10
关键词	Debinding temperature Argon atmosphere Alumina ceramics Flexural strength Stereolithography
ISSN号	1044-5803
DOI	10.1016/j.matchar.2020.110548
通讯作者	Liu, Yongsheng(yongshengliu@nwpu.edu.cn)
英文摘要	Debinding 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%.
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	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	ELSEVIER SCIENCE INC
WOS记录号	WOS:000571730700001
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/321006/140675]
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.Northwestern Polytech Univ, NPU SAS Joint Res Ctr Adv Ceram, Xian 710072, Shaanxi, Peoples R China 2.Northwestern Polytech Univ, Sci & Technol Thermostruct Composite Mat Lab, Xian 710072, Shaanxi, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 4.Tsinghua Univ, State Key Lab Tribol, Beijing 100084, Peoples R China 5.Tsinghua Univ, Dept Mech Engn, Beijing 100084, Peoples R China
推荐引用方式 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.