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 1,2; Liu,Yongsheng 1,2; Liu,Yansong 1,2; Zeng,Qingfeng 1; Hu,Kehui 3,4; Lu,Zhigang 3,4; Liang,Jingjing 5
通讯作者	Liu,Yongsheng(yongshengliu@nwpu.edu.cn) ; Zeng,Qingfeng(qfzeng@nwpu.edu.cn)
	2020-04-07
发表期刊	Journal of Advanced Ceramics
ISSN	2226-4108
卷号	9 期号:2 页码:220-231
摘要	AbstractAlumina 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 °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 °C higher than that sintering in air atmosphere when achieved the similar properties.
关键词	sintering temperature argon atmosphere alumina ceramics microstructure stereolithography
DOI	10.1007/s40145-020-0362-0
语种	英语
WOS记录号	BMC:10.1007/s40145-020-0362-0
出版者	Tsinghua University Press
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/80476
专题	中国科学院金属研究所
通讯作者	Liu,Yongsheng; Zeng,Qingfeng
作者单位	1.Northwestern Polytechnical University; Science and Technology on Thermostructural Composite Materials Laboratory 2.Northwestern Polytechnical University; NPU-SAS Joint Research Center of Advanced Ceramics 3.Tsinghua University; Department of Mechanical Engineering 4.Tsinghua University; State Key Laboratory of Tribology 5.Chinese Academy of Sciences; Institute of Metal Research
推荐引用方式 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.