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Volume 21 Issue 4
Apr.  2014
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Song Wang, Yun-han Ling, Jun Zhang, Jian-jun Wang, and Gui-ying Xu, Microstructure and properties of hydrophobic films derived from Fe-W amorphous alloy, Int. J. Miner. Metall. Mater., 21(2014), No. 4, pp. 395-400. https://doi.org/10.1007/s12613-014-0921-x
Cite this article as:
Song Wang, Yun-han Ling, Jun Zhang, Jian-jun Wang, and Gui-ying Xu, Microstructure and properties of hydrophobic films derived from Fe-W amorphous alloy, Int. J. Miner. Metall. Mater., 21(2014), No. 4, pp. 395-400. https://doi.org/10.1007/s12613-014-0921-x
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Microstructure and properties of hydrophobic films derived from Fe-W amorphous alloy

  • 通讯作者:

    Yun-han Ling    E-mail: yhling@mail.tsinghua.edu.cn

  • Amorphous metals are totally different from crystalline metals in regard to atom arrangement. Amorphous metals do not have grain boundaries and weak spots that crystalline materials contain, making them more resistant to wear and corrosion. In this study, amorphous Fe-W alloy films were first prepared by an electroplating method and were then made hydrophobic by modification with a water repellent (heptadecafluoro-1,1,2,2-tetradecyl) trimethoxysilane. Hierarchical micro-nano structures can be obtained by slightly oxidizing the as-deposited alloy, accompanied by phase transformation from amorphous to crystalline during heat treatment. The micro-nano structures can trap air to form an extremely thin cushion of air between the water and the film, which is critical to producing hydrophobicity in the film. Results show that the average values of capacitance, roughness factor, and impedance for specific surface areas of a 600℃ heat-treated sample are greater than those of a sample treated at 500℃. Importantly, the coating can be fabricated on various metal substrates to act as a corrosion retardant.
  • Microstructure and properties of hydrophobic films derived from Fe-W amorphous alloy

    + Author Affiliations
    • Amorphous metals are totally different from crystalline metals in regard to atom arrangement. Amorphous metals do not have grain boundaries and weak spots that crystalline materials contain, making them more resistant to wear and corrosion. In this study, amorphous Fe-W alloy films were first prepared by an electroplating method and were then made hydrophobic by modification with a water repellent (heptadecafluoro-1,1,2,2-tetradecyl) trimethoxysilane. Hierarchical micro-nano structures can be obtained by slightly oxidizing the as-deposited alloy, accompanied by phase transformation from amorphous to crystalline during heat treatment. The micro-nano structures can trap air to form an extremely thin cushion of air between the water and the film, which is critical to producing hydrophobicity in the film. Results show that the average values of capacitance, roughness factor, and impedance for specific surface areas of a 600℃ heat-treated sample are greater than those of a sample treated at 500℃. Importantly, the coating can be fabricated on various metal substrates to act as a corrosion retardant.
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