Improved mechanical properties of silica ceramic cores prepared by 3D printing and sintering processes

doi:10.1016/j.scriptamat.2020.113665

CORC > 金属研究所 > 中国科学院金属研究所

	Improved mechanical properties of silica ceramic cores prepared by 3D printing and sintering processes
	Li, He 1,2; Hu, Kehui 3,4; Liu, Yongsheng 1,2; Lu, Zhigang 3,4; Liang, Jingjing 5
刊名	SCRIPTA MATERIALIA
	2021-03-15
卷号	194 页码:5
关键词	Silica Ceramic cores 3D printing Direction printing Mechanical properties
ISSN号	1359-6462
DOI	10.1016/j.scriptamat.2020.113665
通讯作者	Liu, Yongsheng(yongshengliu@nwpu.edu.cn) ; Lu, Zhigang(lvzg@tsinghua.edu.cn)
英文摘要	In this study, silica ceramic cores were fabricated by stereolithography based-3D printing with improved mechanical properties. To this end, the green bodies were first 3D-printed in different directions, and then debinded samples were sintered at different temperatures. The flexural strengths of the ceramics reached a maximum value of 12.1 MPa at a sintering temperature of 1300 degrees C due to the enhanced alpha-cristobalite content responsible for the flexural strength at room temperature. Meanwhile, the flexural strengths of ceramics printed by mode 1 (printing performed parallel to the height direction) were much greater than those printed by mode 2 (printing performed perpendicular to the height direction). The anisotropy flexural strength was caused by the weak binding force between layers. Sintered ceramics composed of alpha-cristobalite, beta-cristobalite, and quartz. In sum, the control over the 3D printing parameters and adjustment of the sintering process would result in ceramics with isotropic mechanical properties. (C) 2020 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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	Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000632783300054
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/321006/161912]
专题	金属研究所_中国科学院金属研究所
通讯作者	Liu, Yongsheng; Lu, Zhigang
作者单位	1.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
推荐引用方式 GB/T 7714	Li, He,Hu, Kehui,Liu, Yongsheng,et al. Improved mechanical properties of silica ceramic cores prepared by 3D printing and sintering processes[J]. SCRIPTA MATERIALIA,2021,194:5.
APA	Li, He,Hu, Kehui,Liu, Yongsheng,Lu, Zhigang,&Liang, Jingjing.(2021).Improved mechanical properties of silica ceramic cores prepared by 3D printing and sintering processes.SCRIPTA MATERIALIA,194,5.
MLA	Li, He,et al."Improved mechanical properties of silica ceramic cores prepared by 3D printing and sintering processes".SCRIPTA MATERIALIA 194(2021):5.