铜表面微结构化对惰性润湿和反应润湿的影响

doi:10.11896/cldb.19070252

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Abstract Nanosecond laser was used to construct meshes with different line spacing on the surface of copper substrate to create different surface roughness. The influence of nanosecond laser microstructure on inert wetting and reactive wetting of copper was studied by using modified sessile drop method. The results showed that the different types of meshes did not cause asymmetric droplet, and the inert wetting was consistent with Wenzel model, while the reactive wetting results deviated from the model. In the inert wettable system, as predicted by Wenzel model, the increased roughness would promote the final wettability. The deviation of reactive wetting can be attributed to the fact that the asperities of the rough surface prevents the triple line from moving, and thus the increase of the roughness does not promote the wettability.

Key words： nanosecond laser Cu surface texturing microstructure inert wetting reactive wetting

Published: 24 July 2020

CLC number:

TG174.143

Fund:This work was financially supported by the National Natural Science Foundation of China (51675256), Gansu Basic Research and Innovation Group Plan Project (17JR5RA107),Lanzhou University of Technology Hongliu Outstanding Young Talents Support Project and Special Fund Project for Guiding Scientific and Technological Innovation and Development in Gansu Province (2019zx-08).

About author:: Haipeng Yang, Master of Lanzhou University of Technology. Research direction is dissimilar metal connection and wettability.
Yu Shi, professor of Lanzhou University of Technology, doctoral tutor. Mainly engaged in advanced welding methods, welding physics and welding process control, published more than 100 academic papers, including SCI, EI, ISTP more than 50 articles, presided over the National Natural Science Foundation, provincial and ministerial level fund projects. In 2012, he was selec-ted as an outstanding talent of Lanzhou University of Technology. He won the third prize of Gansu Provincial Science and Technology Progress Award and the second prize of Science and Technology Progress Award of Gansu Province University. He is currently a member of the editorial board of The Scientific World Journal and a reviewer for various domestic and international magazines. He is also a member of the Robotics and Automation Committee of the Welding Society of the Society of Mechanical Engineering, a secretary general of the Gansu Provincial Welding Society, and a reviewer of the National Natural Science Foundation of China.

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	YANG Haipeng
	SHI Yu
	LIN Qiaoli
	CI Wenjuan
	ZHANG Gang

Cite this article:

YANG Haipeng,SHI Yu,LIN Qiaoli, et al. Effect of Cu Surface Microcosmic Morphology on the Inert Wetting and Reactive Wetting[J]. Materials Reports, 2020, 34(16): 16109-16113.

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http://www.mater-rep.com/EN/10.11896/cldb.19070252 OR http://www.mater-rep.com/EN/Y2020/V34/I16/16109

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