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Preparation and solidification process of mono-sized Cu–Ni–Sn microspheres by pulsated orifice ejection method
Li,Can1,2; Li,Jianqiang2; Hu,Yingyan2; Liu,Chao1; Li,Xiaoyu2
2019-02-06
Source PublicationMaterials Research Express
ISSN2053-1591
Volume6Issue:5
AbstractAbstract Cu–Ni–Sn alloys are well known for their excellent properties, including excellent elasticity and high strength, which enable large potentials for applications in microelectronic industry and 3D printing for example. Preparation of the high quality spherical powders should meet the new requirements in these emerging fields. In this work, the mono-sized Cu-13Ni-17Sn (wt%) microspheres with controllable diameters ranging from 84.4 μm to 212.0 μm were prepared by pulsated orifice ejection method (POEM). Solidified Cu–Ni–Sn microspheres exhibit good sphericity and remarkably narrowed size distribution. The percentage of microspheres with sphericity of more than 0.9 is high up to 98.6%, and the average sphericity of microspheres is 0.989. The surface of Cu–Ni–Sn microspheres is smooth, and the interior contains no pores and impurities. Furthermore, the cooling rate of Cu-13Ni-17Sn microspheres was estimated in a Newton’s cooling model. With decreasing particle diameter, the cooling rate of Cu-13Ni-17Sn microspheres increases gradually. When the particle diameter is less than 84.4 μm, the cooling rate of microspheres exceeds 3.64?×?104 K s?1. With increasing particle size, the secondary dendrite arm spacing increases gradually owing to the decrease of the sphere cooling rate.
Keywordmono-sized Cu–Ni–Sn microspheres sphericity pulsated orifice ejection method rapid solidification secondary dendrite arm spacing
DOI10.1088/2053-1591/ab0187
Language英语
WOS IDIOP:2053-1591-6-5-ab0187
PublisherIOP Publishing
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/27528
Collection中国科学院过程工程研究所
Affiliation1.State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, 122 Luoshi Road, Hongshan, Wuhan, Hubei 430070, People’s Republic of China
2.National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
Recommended Citation
GB/T 7714
Li,Can,Li,Jianqiang,Hu,Yingyan,等. Preparation and solidification process of mono-sized Cu–Ni–Sn microspheres by pulsated orifice ejection method[J]. Materials Research Express,2019,6(5).
APA Li,Can,Li,Jianqiang,Hu,Yingyan,Liu,Chao,&Li,Xiaoyu.(2019).Preparation and solidification process of mono-sized Cu–Ni–Sn microspheres by pulsated orifice ejection method.Materials Research Express,6(5).
MLA Li,Can,et al."Preparation and solidification process of mono-sized Cu–Ni–Sn microspheres by pulsated orifice ejection method".Materials Research Express 6.5(2019).
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