Microstructure and properties of 3D-printed alumina ceramics with different heating rates in vacuum debinding

doi:10.1007/s12598-020-01372-x

IMR OpenIR

	Microstructure and properties of 3D-printed alumina ceramics with different heating rates in vacuum debinding
	Li, He 1,2; Liu, Yong-Sheng 1,2; Liu, Yan-Song 1,2; Zeng, Qing-Feng 1; Hu, Ke-Hui 3,4; Liang, Jing-Jing 5; Lu, Zhi-Gang 3,4
通讯作者	Liu, Yong-Sheng(yongshengliu@nwpu.edu.cn)
	2020-02-14
发表期刊	RARE METALS
ISSN	1001-0521
页码	12
摘要	The effect of heating rates during vacuum debinding on the microstructure and mechanical properties of alumina ceramics are discussed in this paper. The three-dimensional (3D)-printed alumina ceramics examined in this study were found to have a layered structure, and interlayer spacing increased as the heating rate increased. The pore diameter, shrinkage, flexural strength and hardness were found to decrease as the heating rate increased due to weak interfacial bonding between alumina particles. Shrinkage was found to be much larger along the Z direction than along the X or Y directions due to the layer-by-layer forming mode during 3D printing. 0.5 degrees C center dot min(-1) is considered the optimum heating rate, yielding ceramics with interlayer spacing of 0.65 mu m, shrinkage of 2.6%, 2.3% and 4.0% along the X, Y and Z directions, respectively, flexural strength of 27.5 MPa, hardness of 29.8 GPa, Vickers hardness of HV 266.5, pore diameter of 356.8 nm, bulk density of 2.5 g center dot cm(-3), and open porosity of 38.4%. The debinding procedure used in this study could be used to produce a high-quality ceramic which can be used for fabricating alumina ceramic cores.
关键词	Heating rate Vacuum debinding Alumina ceramics Three-dimensional (3D) printing Stereolithography
资助者	National Key Research and Development Program of China ; National Natural Science Foundation of China
DOI	10.1007/s12598-020-01372-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 Science Foundation of China[51672217]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000516266300001
出版者	NONFERROUS METALS SOC CHINA
引用统计	被引频次：28[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/321006/137356
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.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,Liu, Yong-Sheng,Liu, Yan-Song,et al. Microstructure and properties of 3D-printed alumina ceramics with different heating rates in vacuum debinding[J]. RARE METALS,2020:12.
APA	Li, He.,Liu, Yong-Sheng.,Liu, Yan-Song.,Zeng, Qing-Feng.,Hu, Ke-Hui.,...&Lu, Zhi-Gang.(2020).Microstructure and properties of 3D-printed alumina ceramics with different heating rates in vacuum debinding.RARE METALS,12.
MLA	Li, He,et al."Microstructure and properties of 3D-printed alumina ceramics with different heating rates in vacuum debinding".RARE METALS (2020):12.