Metal-Metal Joining by Unusual Wetting on Surface Fine Crevasse Structure Formed by Laser Treatment
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- Fukuda Atsushi
- Graduate School of Engineering, Osaka University
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- Matsukawa Hiroyuki
- Graduate School of Engineering, Osaka University
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- Goto Hiroki
- Graduate School of Engineering, Osaka University
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- Suzuki Masanori
- Graduate School of Engineering, Osaka University
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- Nakamoto Masashi
- Graduate School of Engineering, Osaka University
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- Matsumoto Ryo
- Graduate School of Engineering, Osaka University
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- Utsunomiya Hiroshi
- Graduate School of Engineering, Osaka University
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- Tanaka Toshihiro
- Graduate School of Engineering, Osaka University
Bibliographic Information
- Other Title
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- レーザー処理により形成した表面微細クレバス構造を利用した特異拡張濡れによる金属接合
- レーザー ショリ ニ ヨリ ケイセイ シタ ヒョウメン ビサイ クレバス コウゾウ オ リヨウ シタ トクイ カクチョウ ヌレ ニ ヨル キンゾク セツゴウ
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Abstract
One of the authors has investigated a metal-metal joining by using “unusual wetting”, which is the phenomenon where a liquid metal unusually spreads by capillary action, on the porous layer of metal surface formed in oxidation-reduction process. While the oxidation-reduction treatment creates an adequate porous structure for “unusual wetting” throughout, it is not easy to control the area of porosity formation to realize a selective joining because of a difficulty of localized oxidation-reduction treatment. In the present work, we propose the utilization of laser for creating an adequate structure for local “unusual wetting”. The surface fine asperity structure observed on Cu substrate after laser irradiation was named “surface fine crevasse structure”. The wettability of liquid Bi for the above modified surface structure was investigated to confirm “localized unusual wetting” of liquid Bi on “the surface fine crevasse structure” of Cu substrate. In addition, we succeeded in joining two Cu substrates by “unusual wetting” in the surface fine crevasse structure prepared by laser irradiation.<br>
Journal
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- Journal of the Japan Institute of Metals and Materials
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Journal of the Japan Institute of Metals and Materials 79 (1), 23-28, 2015
The Japan Institute of Metals and Materials
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Details 詳細情報について
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- CRID
- 1390282681459215488
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- NII Article ID
- 130004786472
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- NII Book ID
- AN00187860
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- ISSN
- 18806880
- 24337501
- 00214876
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- NDL BIB ID
- 026026908
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed