Mechanism of the Unusual Wetting of a Surface Fine Crevice Structure Created by Laser Irradiation

Vilakazi Siboniso; Jaebong Yeon; Christian Grozescu; Hiroki Goto; Masashi Nakamoto; Ryo Matsumoto; Hiroshi Utsunomiya; Toshihiro Tanaka

doi:10.2320/matertrans.M2017115

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Mechanism of the Unusual Wetting of a Surface Fine Crevice Structure Created by Laser Irradiation

Vilakazi Siboniso, Jaebong Yeon, Christian Grozescu, Hiroki Goto, Masashi Nakamoto, Ryo Matsumoto, Hiroshi Utsunomiya, Toshihiro Tanaka

著者情報

キーワード: laser, wettability, capillary phenomenon, mechanism, copper, bismuth

ジャーナル認証あり早期公開

論文ID: M2017115

DOI https://doi.org/10.2320/matertrans.M2017115

この記事には本公開記事があります。

The final version of this article is now available: Vol. 58 (2017), No. 8 pp. 1227-1230

詳細

抄録

We investigated the detailed mechanism of the unusual wetting of liquid metal bismuth on the surface fine crevice structure of copper metal created with laser-irradiation by focusing on the wetting state during the course of wetting. It was observed that liquid bismuth infiltrates into the fine pore and the interspaces on the surface fine porous structure, and wets on the surface fine crevice structure itself ahead and behind the wetting front, respectively. This revealed that the unusual wetting on the surface of the fine crevice structure proceeded through a transition from microscopic wetting to macroscopic wetting.

Fig. 2 Appearance of the sample after the experiment. Fullsize Image

責任著者(Corresponding author)

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