• Title/Summary/Keyword: 산화/용해

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Formation of Anodic Al Oxide Nanofibers on Al3104 Alloy Substrate in Pyrophosphoric Acid (피로인산 전해질에서 양극산화를 통한 알루미늄 3104 합금 나노섬유 산화물 형성)

  • Kim, Taewan;Lee, Kiyoung
    • Journal of the Korean Electrochemical Society
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    • v.24 no.1
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    • pp.7-12
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    • 2021

  • In this study, we investigated the formation of the metal oxide nanostructure by anodization of aluminum 3104H18 alloy. The anodization was performed in pyrophosphoric acid (H4P2O7) electrolyte. By the control of anodization condition such as concentration of electrolyte, anodization temperature and applied voltage, nanoporous or nanofiber structures were obtained. The optimal anodization condition to form nanofiber structures are 75 wt% of H4P2O7 at 30 V and 20℃. When anodization was performed at over 40 V, nanoporous structures were formed due to accelerated dissolution reaction rate of nanofiber structures or increasing thickness of channel wall.

  • https://doi.org/10.5229/JKES.2021.24.1.7 인용 PDF KSCI