Effect of sintering temperature in argon atmosphere on microstructure and properties of 3D printed alumina ceramic cores

doi:10.1007/s40145-020-0362-0

IMR OpenIR

	Effect of sintering temperature in argon atmosphere on microstructure and properties of 3D printed alumina ceramic cores
	Li, He; Liu, Yongsheng; Liu, Yansong; Zeng, Qingfeng; Hu, Kehui; Lu, Zhigang; Liang, Jingjing
	2020-04-01
Source Publication	JOURNAL OF ADVANCED CERAMICS
Volume	9 Issue:2 Pages:220-231
Abstract	Alumina ceramics with different sintering temperatures in argon atmosphere were obtained using stereolithography-based 3D printing. The effects of sintering temperature on microstructure and physical and mechanical properties were investigated. The results show that the average particle size, shrinkage, bulk density, crystallite size, flexural strength, Vickers hardness, and nanoindentation hardness increased with the increase in sintering temperature, whereas the open porosity decreased with increasing sintering temperature. No change was observed in phase composition, chemical bond, atomic ratio, and surface roughness. For the sintered samples, the shrinkage in Z direction is much greater than that in X or Y direction. The optimum sintering temperature in argon atmosphere is 1350 degrees C with a shrinkage of 3.0%, 3.2%, and 5.5% in X, Y, and Z directions, respectively, flexural strength of 26.7 MPa, Vickers hardness of 198.5 HV, nanoindentation hardness of 33.1 GPa, bulk density of 2.5 g/cm3, and open porosity of 33.8%. The optimum sintering temperature was 70 degrees C higher than that sintering in air atmosphere when achieved the similar properties.
DOI	10.1007/s40145-020-0362-0
WOS ID	WOS:000524317400009
Citation statistics	Cited Times:5[WOS] [WOS Record] [Related Records in WOS]
Document Type	期刊论文
Identifier	http://ir.imr.ac.cn/handle/321006/82978
Collection	中国科学院金属研究所
Recommended Citation GB/T 7714	Li, He,Liu, Yongsheng,Liu, Yansong,et al. Effect of sintering temperature in argon atmosphere on microstructure and properties of 3D printed alumina ceramic cores[J]. JOURNAL OF ADVANCED CERAMICS,2020,9(2):220-231.
APA	Li, He.,Liu, Yongsheng.,Liu, Yansong.,Zeng, Qingfeng.,Hu, Kehui.,...&Liang, Jingjing.(2020).Effect of sintering temperature in argon atmosphere on microstructure and properties of 3D printed alumina ceramic cores.JOURNAL OF ADVANCED CERAMICS,9(2),220-231.
MLA	Li, He,et al."Effect of sintering temperature in argon atmosphere on microstructure and properties of 3D printed alumina ceramic cores".JOURNAL OF ADVANCED CERAMICS 9.2(2020):220-231.

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