2021 Fiscal Year Final Research Report
Development of the roughening processing technology in the metal surface for precise device which used electrolyzed oxidizing water
| Project/Area Number |
19K04124
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Review Section |
Basic Section 18020:Manufacturing and production engineering-related
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| Research Institution | Shinshu University |
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Principal Investigator |
Sato Unkai 信州大学, 学術研究院教育学系, 教授 (30345730)
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| Project Period (FY) |
2019-04-01 – 2022-03-31
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| Keywords | 電解酸化水 / 表面改質処理 / エッチング / 粗化処理 / 無酸素銅材 / 銅合金 / ニッケル合金 / 環境負荷軽減 |
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| Outline of Final Research Achievements |
In this research project, we have conducted experimental research on the surface roughening treatment of oxygen free copper, copper alloys, and nickel alloys for precision devices using electrolytic oxidizing water with ultrasonic.
The results showed that, first, when ultrasonic waves are applied, the dissolved oxygen concentration in the electrolytic oxidizing water increases, and the etching action on the surfaces of copper and nickel materials becomes stronger. Next, the flatness of the oxygen-free copper polished surface becomes higher when Na2SO4 electrolytically oxidizing water is used compared to the chemical solution, and it can be uniformly roughened by using NaCl electrolytically oxidizing water. For 45 permalloy alloys, either Na2SO4 electrolytic oxidizing water or NaCl electrolytic oxidizing water can be used for uniform roughening.
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| Free Research Field |
精密加工および表面改質処理
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| Academic Significance and Societal Importance of the Research Achievements |
超音波振動を併用して，電解酸化水は薬液より，精密デバイス用の無酸素銅材，銅合金およびニッケル合金の表面に対するエッチング作用，粗化作用が強くなることを解明した．それによって，次世代の精密デバイス用の銅材やニッケル材の表面性状を創生できる技術の開発ができたのみではなく，処理溶液中の溶存酸素濃度などの制御によって，より高性能な銅材やニッケル材をはじめとする金属材料の表面粗化溶液を含む表面粗化技術を開発できる示唆を得た．
今後，新技術の開発について，引き続き研究し，産業界に還元する．
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