Microstructure and mechanical properties of 3D printed ceramics with different vinyl acetate contents

doi:10.1007/s12598-020-01685-x

IMR OpenIR

	Microstructure and mechanical properties of 3D printed ceramics with different vinyl acetate contents
	Li, He 1,2; Liu, Yong-Sheng 1,2; Liu, Yan-Song 1,2; Zeng, Qing-Feng 1; Liang, Jing-Jing 3
通讯作者	Liu, Yong-Sheng(yongshengliu@nwpu.edu.cn)
	2021-03-02
发表期刊	RARE METALS
ISSN	1001-0521
页码	10
摘要	Stereolithography (SL)-based three-dimensional (3D) printing technique is an efficient method for the fabrication of alumina ceramics. The alumina slurry is difficult to obtain due to the barrier between hydrophilic alumina and oleophilic resin. It not only requires that the ceramic slurry possessed low viscosity and uniformity, but also requires that the slurry could complete the photocuring process. In this study, vinyl acetate was added in the ceramic slurry as a bridge to connect alumina and resin, and the effects of vinyl acetate content on the microstructure and mechanical properties of the alumina ceramics were systematically investigated. The results showed that the alumina ceramics were composed of three types of particles which included large aggregates, individual particles, and long-columnshaped particles. The shrinkage, bulk density, and crystallite size of the ceramics increased with the increase in vinyl acetate content. The open porosity decreased with the increase in vinyl acetate content. The flexural strength of the ceramics first increased and subsequently decreased with the increase in vinyl acetate content. The shrinkage in Z direction was much greater than that in X or Y direction. Based on the above results, the optimum vinyl acetate content for alumina slurry was 10 wt%, which resulted in sintered ceramic with the shrinkage of 15.6% in X direction, 13.5% in Y direction, 21.9% in Z direction, bulk density of 1.9 g.cm(-3), open porosity of 50.1%, and flexural strength of 24.4 MPa. The sintered ceramics satisfy the requirement of alumina ceramic cores.
关键词	Stereolithography Alumina ceramics Vinyl acetate Microstructure Mechanical properties
资助者	National Key Research and Development Program of China ; National Natural Foundation of China ; Innovation Foundation for Doctor Dissertation of Northwestern Polytechnical University
DOI	10.1007/s12598-020-01685-x
收录类别	SCI
语种	英语
资助项目	National Key Research and Development Program of China[2018YFB1106600] ; National Natural Foundation of China[51672217] ; Innovation Foundation for Doctor Dissertation of Northwestern Polytechnical University[CX202006]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000623792600002
出版者	NONFERROUS METALS SOC CHINA
引用统计	被引频次：10[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/161094
专题	中国科学院金属研究所
通讯作者	Liu, Yong-Sheng
作者单位	1.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.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Li, He,Liu, Yong-Sheng,Liu, Yan-Song,et al. Microstructure and mechanical properties of 3D printed ceramics with different vinyl acetate contents[J]. RARE METALS,2021:10.
APA	Li, He,Liu, Yong-Sheng,Liu, Yan-Song,Zeng, Qing-Feng,&Liang, Jing-Jing.(2021).Microstructure and mechanical properties of 3D printed ceramics with different vinyl acetate contents.RARE METALS,10.
MLA	Li, He,et al."Microstructure and mechanical properties of 3D printed ceramics with different vinyl acetate contents".RARE METALS (2021):10.