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.
作者简介: 杨海鹏,兰州理工大学硕士研究生,研究方向为异种金属连接及润湿性。 石玗,兰州理工大学教授(博士),博士研究生导师。主要从事先进焊接方法、焊接物理及焊接过程控制等领域的研究工作,发表学术论文100余篇,其中SCI、EI、ISTP收录50余篇,主持国家自然科学基金、省部级基金项目多项。2012年入选兰州理工大学红柳杰出人才。获甘肃省科技进步三等奖,甘肃省高校科技进步二等奖等多项奖励。现为The Scientific World Journal杂志编委,多种国内外杂志审稿人。兼任机械工程学会焊接学会机器人与自动化委员会委员,甘肃省焊接学会秘书长,国家自然科学基金项目评议专家。
引用本文:
杨海鹏, 石玗, 林巧力, 慈文娟, 张刚. 铜表面微结构化对惰性润湿和反应润湿的影响[J]. 材料导报, 2020, 34(16): 16109-16113.
YANG Haipeng, SHI Yu, LIN Qiaoli, CI Wenjuan, ZHANG Gang. Effect of Cu Surface Microcosmic Morphology on the Inert Wetting and Reactive Wetting. Materials Reports, 2020, 34(16): 16109-16113.
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2020, Vol. 34 
