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	Microstructure and properties of hydrophobic films derived from Fe-W amorphous alloy
	Song Wang ; Yun-han Ling ; Jun Zhang ; Jian-jun Wang ; Gui-ying Xu ; Song Wang ; Yun-han Ling ; Jun Zhang ; Jian-jun Wang ; Gui-ying Xu
	2016-03-30 ; 2016-03-30
关键词	iron tungsten alloys amorphous films hydrophobicity microstructure contact angle capacitance TG139.8 TG174.4
其他题名	Microstructure and properties of hydrophobic films derived from Fe-W amorphous alloy
中文摘要	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癈 heat-treated sample are greater than those of a sample treated at 500癈. Importantly, the coating can be fabricated on various metal substrates to act as a corrosion retardant.; 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癈 heat-treated sample are greater than those of a sample treated at 500癈. Importantly, the coating can be fabricated on various metal substrates to act as a corrosion retardant.
语种	英语 ; 英语
内容类型	期刊论文
源URL	[http://ir.lib.tsinghua.edu.cn/ir/item.do?handle=123456789/141659]
专题	清华大学
推荐引用方式 GB/T 7714	Song Wang,Yun-han Ling,Jun Zhang,et al. Microstructure and properties of hydrophobic films derived from Fe-W amorphous alloy[J],2016, 2016.
APA	Song Wang.,Yun-han Ling.,Jun Zhang.,Jian-jun Wang.,Gui-ying Xu.,...&Gui-ying Xu.(2016).Microstructure and properties of hydrophobic films derived from Fe-W amorphous alloy..
MLA	Song Wang,et al."Microstructure and properties of hydrophobic films derived from Fe-W amorphous alloy".(2016).

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